Mitsubishi Programmable Logic Controller Training Manual MELSECNET/H course(Q-series) Mitsubishi Programmable Logic Controller MELSECNET/H course(Q-series) Training Manual MELSECNET/H course(Q-series) MODEL SCHOOL-Q-NET10H-E MODEL CODE 13JW52 SH(NA)-080619ENG-A(0601)MEE HEAD OFFICE : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN NAGOYA WORKS : 1-14 , YADA-MINAMI 5-CHOME , HIGASHI-KU, NAGOYA , JAPAN When exported from Japan, this manual does not require application to the Minis
SAFETY PRECAUTIONS (Always read these instructions before the exercise.) When designing the system, always read the relevant manuals and give sufficient consideration to safety. During the exercise, pay full attention to the following points and handle the product correctly. [EXERCISE PRECAUTIONS] WARNING Do not touch the terminals while the power is on to prevent electric shock. When opening the safety cover, turn off the power or conduct a sufficient check of safety before operation.
REVISIONS * The textbook number is given on the bottom left of this textbook. Print date Jan., 2006 Revision * Textbook number SH-080619ENG-A First edition This textbook confers no industrial property rights or any rights of any other kind, nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property rights which may occur as a result of using the contents noted in this textbook.
CONTENTS CONTENTS.......................................................................................................................................................(1) INTRODUCTION...............................................................................................................................................(4) About Generic Terms and Abbreviations .........................................................................................................
CHAPTER 4 ASSIGNMENT II (TRANSIENT TRANSMISSION) 4- 1 to 4-26 4.1 Transient Transmission Function ........................................................................................................... 4- 1 4.1.1 Types and descriptions of dedicated link instructions ................................................................. 4- 1 4.1.2 Message sending function using the logical channel numbers................................................... 4- 3 4.1.3 Instruction format ......................
Appendix 6 Special Register (SD) List for Remote I/O Station............................................................. App-29 Appendix 7 Error Codes ......................................................................................................................... App-40 Appendix 7.1 Error codes of PLC to PLC network ........................................................................ App-40 Appendix 7.2 Error codes of remote I/O network .........................................................
INTRODUCTION This textbook explains how to use the MELSECNET/10H network system used for MELSEC-Q series and its programming. Related Manuals Manual number (Model code) Manual name Q Corresponding MELSECNET/H Network System Reference Manual (PLC to PLC network) Explains the specifications for the MELSECNET/H network system for the PLC to PLC network, the procedures and settings up to operation, the parameter settings, the programming and the troubleshooting.
About Generic Terms and Abbreviations General term/Abbreviation QJ71LP21 Description Abbreviation of the QJ71LP21 and QJ71LP21-25 MELSECNET/H network modules. However, QJ71LP21 and QJ71LP21-25 are used to distinguish these two types. QJ71BR11 Abbreviation of the QJ71BR11 MELSECNET/H network module. QJ72LP25 Abbreviation of the QJ72LP25-25 MELSECNET/H network module. QJ72BR15 Abbreviation of the QJ72BR15 MELSECNET/H network module. Master module Generic term of QJ71LP21 and QJ71BR11.
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CHAPTER 1 1.1 OVERVIEW 1 Overview The MELSECNET/H network system has more functionality, higher processing speed and more capacity than the former network system, MELSECNET/10 network system. In addition, in pursuit of the maximum ease of use of the MELSECNET/10 network system, the FA system can be easily networked by combining with GX Developer.
1.2 Features The PLC to PLC network of MELSECNET/H is designed to provide higher processing speeds, more capacities, and more functionality while maintaining the connectivity with the MELSECNET/10; it is easier to use than ever in combination with GX Developer. Furthermore, the PLC to PLC network of MELSECNET/H has the following features that were not available with the conventional MELSECNET (II) and MELSECNET/B data link systems. (For the remote I/O network, refer to Chapter 5.
(e) By using the inter-link data transfer function, data (LB/LW) can be transferred to another network without creating a sequence program. Network module 2 Network module 1 QCPU QCPU LB LB 0 0 Inter-link data transfer Network module QCPU 3FFFH 3FFFH Data of network No. 2 Data of network No. 1 Network No. 1 (f) GX Developer Network No.
(3) Providing various communication services (a) The transient transmission can be performed by designating a channel number (1 to 64) of the receiving station. This function allows to set (change) the channel numbers arbitrarily with the sequence programs and to perform the transmission to multiple stations with the same channel number at one time. QCPU Receiver channel unmatched Network module Receiver channel No.9 Channel 1 MELSECNET/H Send J.
(c) The interrupt sequence program of the host's CPU module can be started up using the event issue function. This function reduces the response time of the system and processes the real-time data receiving.
(5) Enhancement and compatibility of the network functions (a) Because of the 32-bit data guarantee, the data with double word precision (32 bits) can be guaranteed without an interlock.
(d) By using the MELSECNET/10 mode (functional compatibility and performance compatibility mode), the MELSECNET/H can be used together with the conventional network modules to easily install a PLC network system. To use the MELSECNET/H in the MELSECNET/10 mode (functional compatibility and performance compatibility mode), please see the "For QnA/Q4AR MELSECNET/10 Network System Reference Manual".
(d) After assigning the refresh parameters, inter-link data transfer devices, etc. to the network system in which multiple network modules are installed, the duplicate device settings can be easily checked with [Assignment image]. 1.
1.4 System Configuration of PLC to PLC Network This section explains different system configurations that are available with the PLC to PLC network of the MELSECNET/H. REMARK The following functions are changed or added in the function version B of network module. (1) Functions added Function Description Multiple CPU system Multiple CPU systems are supported.
1.4.1 Single network system A single network system is one system that connects the control station and the normal stations with an optical fiber cable or a coaxial cable. (1) Optical loop system In the optical loop system, 1 control station and 63 normal stations (a total of 64 stations) can be connected. Any station number can be assigned as the control station. However, only one station can be set as the control station per system.
1.4.2 Multiple network system 1st module 2nd module 3rd module 4th module The multiple network system is a network system in which multiple networks are connected via relay stations. 1) The network number can be freely set within a range from 1 to 239. 2) A maximum of 4 network modules can be installed per PLC. Network No.4 Network No.1 Network No.2 Network No.3 (1) Configuration The following example shows how three networks can be connected.
Simple dual-structured system In a simple dual-structured system, the "regular" and "standby" network modules are installed in each CPU module, so that if the regular network is down, the data link can still be continued by switching to the standby network through the link data refresh. QCPU Standby Power supply Regular Standby Power supply Standby QCPU Regular Normal station Normal station Regular network Network No.1 Network No.
1.5 System Configuration of Remote I/O Network This section explains different system configurations that are available with the remote I/O network of the MELSECNET/H. REMARK The following CPU modules and master modules are applicable to the remote master station. CPU module type Max. No. of applicable network modules QCPU *1 4 (including PLC to PLC networks) QnACPU Not mountable ACPU *1: Use a CPU module with the first 5 digits of the serial No. 02092 or later.
Single remote I/O networks QCPU QJ71 LP21 (-25) Station No.1 (remote I/O station) Station No.2 (remote I/O station) Power supply Station No. 0 (remote master station) Power supply (1) Optical loop system Up to 64 remote I/O modules can be connected to a remote master station. Always set the station number of the remote master station to 0. Power supply QJ72 I/O I/O LP25 (-25) QJ72 I/O I/O LP25 (-25) Station No.64 (remote I/O station) QJ72 I/O I/O LP25 (-25) Station No.
Multiple remote I/O network 1MR 2MR QCPU QJ71 LP21 (-25) QJ71 LP21 (-25) 1R1 I/O I/O Remote I/O network QJ72 LP25 (-25) I/O I/O 1R2 1 - 15 Power supply QJ72 LP25 (-25) Power supply Remote I/O network QJ72 LP25 (-25) 2R1 I/O I/O Power supply Power supply The multiple remote I/O network system is a network system with many networks connected to it. Set in the way a network number will not duplicate another.
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CHAPTER 2 2.1 EXERCISE ITEMS, PARAMETERS, AND SETUP AND PROCEDURES BEFORE STARTING THE OPERATION Exercise Items Exercise items are shown below. Item Assignment I Common parameter (Cyclic transmission) Check that the data link can be executed by setting the parameter with peripheral devices. Monitoring/testing of Assignment II Check item Check the data link status by monitoring/testing peripheral peripheral devices devices.
2.2 Types of Parameters To run the MELSECNET/H, the parameters for the network module loaded to the PLC CPU must be set with GX Developer. In the parameter setting, settings from the selection of MELSECNET/H until the setting of application function details can be performed. The following shows the setting screens of each parameter. (Setting descriptions are examples.) (1) Setting the number of module cards (Network type) Set the network type and the station type for each module.
(3) Common parameters (Network range assignment) Set the cyclic transmission ranges of LB, LW, LX and LY that can be sent by each station in a single network. The common parameter settings are required only for the control station and the remote master station. The data of the common parameters are sent from the control station to the normal stations when the network starts up.
(5) Station inherent parameters These parameters are set to change the storage position of the link devices (LB, LW) in the network module. The link devices are assigned to each station with the common parameters. (6) Interlink transmission parameters These parameters are set to transfer link data to different networks in a batch mode using parameters when multiple networks are connected to one PLC.
(7) Routing parameters These parameters are used to set "routes" in order to execute transient transmissions to stations having another network number in a multiple network system. (8) Interrupt setting parameters These parameters are set to check the interrupt conditions at data receiving from other stations.
2.3 Procedures before Starting the Operation The following flowchart shows the procedures that are required to perform the data link operation: Start Module switch settings Set the operation conditions of the network module (STATION No., MODE) Install the network module Stop the CPU module (to prevent unintentional outputs) Check the input power supply voltage Power on Turn on the power and check that the POWER LED of the power supply module and the RUN LED of the network module are turned on.
CHAPTER 3 3.1 ASSIGNMENT I (CYCLIC TRANSMISSION) System Configuration of Exercise Assignment I is performed by the system configuration shown below. The same system configuration is used for Assignment II. Interpreting abbreviations 10 MP 1 Station number (1 to 64) MP: Control station NS: Normal station Network No.
3.2 Component Names and Settings of Network Module (QJ71LP21–25) 3) LED displays 1) STATION No. (factory default setting: 1) This switch sets the station number on the same network. The red ERR.LED lights up for a setting error. 2) MODE (factory default setting: 0) This switch sets the operation mode. 4) IN/OUT connectors Connected with an optical fiber connector.
Number 3) Name No 1 3 5 7 Description No 2 4 6 8 No. 1 Name RUN LED Description Status Green Module operating normally on Off 2 MNG Green WDT error occurred (hardware error) Operating as a control station or sub-control station on Off Normal station (not operating as a control station or sub-control station) 3 T.
Number 3) Name No 1 3 5 7 Description No 2 4 6 8 8 L ERR. Red on A communication error occurred. (One of the following communication errors has occurred): CRC : Error generated by an abnormal cable, noise, etc. OVER : This error occurs when the next data is received before the last receive data is loaded into the module, and the data is overwritten. It is caused by a hardware error in the receive area of the network module. AB.
3.3 Standalone Check of the Network Module (Offline Tests) Before executing the data link operation, check the network module and the cables. Select a test using the mode setting switch on the front of the network module. The following three tests are available for the offline tests: (1) Self-loopback test (mode setting switch: 1) This test checks the hardware of the internal circuits, including the send/receive circuit of the network module, as well as the cables.
3.3.1 Self-loopback test This test checks the hardware of a standalone network module, including the send/receive circuit and cable of the transmission system. (1) Connect the IN and OUT terminals of the QJ71LP21-25 network module (for the optical loop system) with an optical fiber cable. For QJ71LP21-25 (optical loop system) Connect IN and OUT (2) Set the mode setting switch of the network module to "1". The self-loopback test is selected. (3) Reset using the RESET/L.CLR switch of the CPU module.
3.3.2 Internal self-loopback test This test checks the hardware of a standalone network module, including the send/receive circuit of the transmission system. (1) Do not connect the optical fiber cable with the QJ71LP21-25 network module (for the optical loop system). However, make sure that the exterior random light does not enter from the connector. For QJ71LP21-25 (optical loop system) Do not allow exterior random light to enter (2) Set the mode setting switch of the network module to "2".
3.3.3 Hardware test This test checks the hardware inside the network module. (1) Connect the IN and OUT terminals of the QJ71LP21-25 network module (for the optical loop system) with an optical fiber cable. For QJ71LP21-25 (optical loop system) Connect IN and OUT (2) Set the mode setting switch of the network module to "3". The hardware test is selected. (3) Reset using the RESET/L.CLR switch of the CPU module. The hardware test is executed; check the execution status on the network module display.
Cable Connection (1) How to connect the cable Connect the IN and OUT terminals with optical fiber cables as shown below. Stations do not have to be connected in the order of station numbers. Any station number can be assigned as the control station. Control station Normal station Station No.1 IN Station No.n n 64 QJ71 LP21 -25 QCPU IN OUT Power supply QJ71 LP21 -25 QCPU Normal station Station No.2 Power supply Power supply 3.
3.5 Write Operation to CPU Module This section explains the operation from reading the program from a floppy disk to writing it to the CPU module. 3.5.1 Starting GX Developer 2) Select! 1) Click the 3) Select! button. 2) Select the [All Programs] menu. 3) Select the [MELSOFT Application] menu. 1) Click! Selection can be made simply by moving the mouse cursor. (Clicking or double-clicking is not required.) 4) Click! 4) Click the [GX Developer] menu. 5) GX Developer starts up.
3.5.2 Reading of sequence program Read the program for control from the textbook FD (sequence program). 1) Click on the toolbar or click [Project] [Open project] menu ( Ctrl + O ). 1) Click! 2) Designate the place where the project to be read is stored. 3) Click the project to be read. 3) Click! 2) Designate the storage target for the project! 4) Click and read the designated project. 4) Click! 5) The read circuit is displayed. 6) The read circuit is displayed.
3.5.3 Specifying the connection target Perform the connection target interface specification for the peripheral device and the CPU module. 1) Click the [Online] [Transfer setup] menu. 1) Click! 2) Check if the setting of the interfaces connected by the peripheral device and the CPU module matches. 3) Double-click! 3) If the interfaces do not match, double-click [Serial USB] to open the [PC side I/F Serial setting] screen. 2) Check the connection target! 4) Set the applicable interface.
3.5.4 Writing of sequence program Write the program for control to the CPU module. 1) Click on the toolbar or the [Online] [Write to PLC] menu. 1) Click! 3) Click! 2) Click Param+Prog from the data read by the "File selection" tab. 3) Click Execute after selecting "Param+Prog". 2) Click! 4) The "Write to PLC" dialog box appears. 5) After the dialog box with the "Completed." message appears when the write is completed, click the OK button.
3.6 Setting the Parameters To run the MELSECNET/H, the parameters for the network module loaded to the PLC CPU must be set with GX Developer. The parameter settings set from the selection of MELSECNET/H to the details of application functions. (1) Parameter setting items for each station type Network station type Parameter setting item Settings on network module Station No. Mode Settings on GX Developer Setting of number of module cards (network type) Network setting Starting I/O No. Network No.
(2) Send range for each station (LB/LW settings) The send range for each station is set to 256 points as shown below. 1NS2 1MP1 1NS3 Network No.
3.6.2 Setting the parameters using a peripheral device 1) Double-click "Network parameter" in the project data list. 2) After the network parameter selection dialog box appears, click the MELSECNET/Ethernet button. 3) Number of card setting screen appears. Set as follows. Set MNET/H mode (Control station). Control station Set the starting I/O No. assigned to the module. Set the network No. (1 to 239). Set the total number of stations of the link. Set MNET/H mode (Normal station).
From the previous page 4) Click the Network range assignment button. 5) Network range assignment screen appears. Set as follows. Control station only Set the max. value +50msec of link scan when the loopback is executed. Set the assignments of LB and LW (16-point units for LB and 1-point unit for LW) 6) Click the End button at the lower right of the screen to close the screen. 7) Click the End button in the number of card setting screen. This completes the network parameter settings.
POINT To use the entire device range of 16k points, change [Device settings] of [PLC parameter] on the CPU module side or assign to other devices using the Refresh parameters. [Example] To change [Device] of [PLC parameter] in order to use all 16k points of the LB and LW device range When using the entire device range Note the following points when assigning device points: 1) The total number of device points is 29k words. 2) The total number of bit devices must be 64k bits.
3.7 Cable Connection Status Check Check the cable connection status using the network parameters of GX Developer. 3.7.1 Station-to-station test This test checks the hardware of the network modules and the cables. The following explains how to check the cable between two adjacent stations. (1) Connecting the cable [Optical loop system] Connect IN and OUT of two network modules with an optical fiber cable. Station to execute test Station to be tested Station No. n Side Station No.
(4) Checking the test result The T.PASS LED of the network module flashes at approximately 0.5s intervals. The T.PASS LED flashes when the test is normal, and the ERR. LED flashes when an error occurs. [Normal test result] Switch position During test (during STOP) Before test (during RESET) Test complete Test is completed when T.PASS flashes 20 times (approximately 10s).
3.7.2 Forward loop/reverse loop test This test checks the cables after all stations are connected with optical fiber cables. It also checks whether the hardware of the network modules and the cables are connected IN and OUT connections properly. (1) Setting the test mode Set the mode network parameter to "Forward loop test" with GX Developer and write the parameter setting to the CPU module. Set the mode for all other stations than the testing station to "Online".
(3) Checking the test result The T.PASS LED of the network module flashes at approximately 0.5s intervals. The T.PASS LED flashes when the test is normal, and the ERR. LED flashes when an error occurs. [Normal test result] Switch position During test (during STOP) Before test (during RESET) Test complete Test is completed when T.PASS flashes 20 times (approximately 10s).
3.8 Network Diagnostics from the Peripheral Device (Online Tests) With the network diagnostic function of GX Developer, the line status can easily be checked and diagnosed. To conduct the network diagnostics, the network parameters (station number switch, mode switch, number of module cards, network settings, and common parameters) must be set. However, even if all the parameters were not set, the loop test can be performed while the "T.PASS" LED is on.
3.8.1 Loop test (optical loop system only) This test checks the line status of the forward and reverse loops upon completion of the wiring of the optical loop system. Also, when a loopback is being executed, it checks the station that executes the loopback. For example, in the system shown below, where the IN/OUT connectors of station number 4 are connected in reverse, conduct a loop test using the GX Developer connected to station number 1.
3.8.2 Setup confirmation test The switch settings of the network module can be checked with this test. The following three types of items can be checked: 1) Control station duplicate check 2) Station number duplicate check 3) Matching between the network set for the station to which GX Developer is connected and the network number set with a network parameter of the host.
3.8.3 Station order check test (optical loop system only) This test checks the connected station numbers in the optical loop system. The following connection orders can be checked by the loop status (displayed on the station order check test result screen. See the monitor screen below.) when this test is conducted.
3.8.4 Communication test This test checks whether or not the data communication can be normally performed between the host and a destination station (designated with network number and station number). Especially when the destination has another network number, the relay network and station numbers are displayed. Therefore, make sure that the routing parameters are properly set.
3.9 Sequence Program The following shows the program of 10MP1. When turning X2 ON, Y71 of the host station lights and Y71 from 10Ns2 to 10Ns5 flash. When turning X3 ON, 10 second timer starts measuring and is displayed on Y40 to Y47 of 10Ns2 to 10Ns5. Path name Project name SB20 SB47 SB49 MC 0 Host status N0 N0 M0 A: Assignment I 10Mp1 SB20: Network module status SB47: Baton pass status SB49: Data link status M0 1) SW74.
For the programs of 10NS2 to 10NS5, read using the following list that shows the changes for each program. List of changes Number 10NS2 10NS3 10NS4 10NS5 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14) 15) 16) 17) 18) 19) 20) 21) SW74.1 B100 Y72 W100 K2Y48 SW74.0 B0 Y71 W0 K2Y40 ——— ——— ——— ——— ——— ——— ——— ——— ——— ——— ——— ——— SW74.2 B200 Y73 W200 K2Y50 SW74.0 B0 Y71 W0 K2Y40 SW74.1 B100 Y72 W100 K2Y48 ——— ——— ——— ——— ——— ——— ——— ——— SW74.3 B300 Y74 W300 K2Y58 SW74.0 B0 Y71 W0 K2Y40 SW74.
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CHAPTER 4 ASSIGNMENT II (TRANSIENT TRANSMISSION) The configuration of the exercise system is the same as that of Assignment I. 4.1 Transient Transmission Function The transient transmission function performs data communication only when it is requested between stations. The transient transmission function can be requested by GX Developer, the intelligent function module, the dedicated link instructions (SEND, RECV, READ, WRITE, REQ, ZNRD, ZNWR and RECV), etc.
: Can be used by both the control and normal stations Dedicated Link Instruction List Instruction Name Executing station Target station Description QCPU QCPU Issues the "remote RUN" and "clock data read/write" requests to other stations.
4.1.2 Message sending function using the logical channel numbers 1 The message sending function using the logical channel numbers * is useful when there are many kinds of information and the receiving station side needs to selectively receive only some of the send messages.
(2) Setting method Set the logical channel numbers in the link special registers (SW8 to SWF) with the sequence program. SW No.
4.1.3 Instruction format The following explains the SEND/RECV instruction format. (1) SEND instruction (Network No. designation) Send command JP.SEND Jn (S1) (S2) (D1) JP:Executed at startup (D1) GP: Executed at startup (Network module start I/O No. designation) Send command GP.SEND Un (S1) (S2) Description of setting Setting range 1 to 239 254: Network number designated with valid module during other station access Jn Host's network No.
Detailed description of the control data Device Item Description b15 to b7 2) 0 to 0 b0 1) 1) Execution type (bit 0) 0: No arrival confirmation When the target station is on the local network : Completed when data is sent from the host. Execution source Target station Complete When the target station is on the other network (S1) Execution/abnormal completion type Execution source Relay station : Completed when the data arrives at the relay station on the network of the local station.
Detailed description of the control data Device Item (S1) + 5 Target station number (S1) + 6 (Use prohibited) Description Designates the target station number. 1 to 64 : Station number 81H to A0H : Group designation (Valid when the execution type designated in (S1) is "0": No arrival confirmation.") FFH : All stations with the target network No. (Valid when the execution type designated in (S1) is "0: No arrival confirmation.") When a group is designated, set the group No.
POINT (1) In order to improve the reliability of data, it is recommended to execute instructions by setting the execution type to "With arrival confirmation." (2) If the communication itself is normally completed when the execution type is set to "No arrival confirmation," the sending is considered as being normally completed by the sending station even if the contents of the send data are abnormal.
(2) RECV instruction (Network No. designation) Receive command JP.RECV Jn (S1) (D1) (D2) JP: Executed at startup (D2) GP: Executed at startup (Network module start I/O No. designation) Receive command GP.RECV Un (S1) (D1) Description of setting Setting range 1 to 239 254: Network number designated with valid module during other station access Jn Host's network No. Un Start I/O number of the host's network module Designate the higher two digits of the 3-digit I/O number.
Detailed description of the control data Device Item Description b15 0 (S1) Abnormal completion type to b8 0 b7 1) b6 0 to b0 0 1) Abnormal completion type (bit 7) Sets the clock data set status at abnormal completion. 0: Does not set the clock data : Does not store the clock data at error occurrence in (S1) + 11 to (S1) 15. 1: Sets clock data : Stores the clock data at error occurrence in (S1) + 11 to (S1) 15. (S1) + 1 Completion status Stores the status when an instruction is completed.
Detailed description of the control data Device Item Description The year (the higher two digits of the 4-digit year) and day of the week are stored as BCD Year (higher two digits)/day of codes. (S1) + 15 the week of abnormal b15 to b8 b7 to b0 completion Day of the week (00H 06H) 00H (Sunday) to 06H (Saturday) Year (00H 99H) (S1) + 16 Abnormal detection network No. Stores the network No. of the station that detected an abnormality.
4.1.4 Confirming that sending/receiving can be performed Write a program to each station, and confirm that sending/receiving can be performed by SEND/RECV. The following shows the program of 10MP1.
56 65 X1 JP.
24) X3 SB0A1 X4 X5 X6 95 SET 25) X4 SB0A2 X3 X5 M200 X3: 10Ns2 station X6 X4: 10Ns3 station 26) X5 SB0A3 X3 X4 X6 X5: 10Ns4 station 27) X6 SB0A4 X3 X4 X5 X6: 10Ns5 station M200 X3 119 MOV K0 Z4 MOV 28) K2 D777 MOV K100 Z4 MOV 29) K3 D777 MOV K200 Z4 MOV 30) K4 D777 MOV K300 Z4 MOV 31) K5 MOV H80 D200Z4 With clock data setting MOV D777 D202Z4 Host storage channel MOV K2 D208Z4 Arrival monitoring time For 10Ns2 X4 X5 For 10Ns3 For 10Ns4 Received data re
170 X7 BCD K1X38 K1Y50 Display of station number = 32) K1X38 K2 BCD D250 K4Y40 Display of 10Ns2 data = 33) K1X38 K3 BCD D350 K4Y40 Display of 10Ns3 data = 34) K1X38 K4 BCD D450 K4Y40 Display of 10Ns4 data = 35) K1X38 K5 BCD D550 K4Y40 Display of 10Ns5 data 202 END 4 - 15
For the programs from 10NS2 to 10NS5, read using the following list that shows the changes for each program. List of changes No. 10NS2 10NS3 10NS4 10NS5 1) SW70.0 SW74.0 SW70.0 SW70.0 2) SW74.0 SW74.0 SW74.0 SW74.0 3) K1 K1 K1 K1 4) ——— SW70.1 SW70.1 SW70.1 5) ——— SW74.1 SW74.1 SW74.1 6) ——— K2 K2 K2 7) ——— ——— SW70.2 SW70.2 8) ——— ——— SW74.2 SW74.3 9) ——— ——— K3 K3 10) ——— ——— ——— SW70.3 11) ——— ——— ——— SW74.
The following gives each part name of the demonstration machine. (The roles of the X2 to X6 and the Y71 to Y75 vary according to each station from 10MP1 to 10NS5.) Data sending status ON: Normal completion *2 Flashing: Abnormal completion Other station data receiving status OFF: No data Flashing: Data received. *2 Receive data display No. Data receive from other station *1 Receiving station No. for data to be displayed Send data Data send destination No.
(1) Operation check of a program Confirm that the data can be sent from each station to the other station. (a) Send data setting: (sending side) By setting the send data to X20 through X2F (4 digits) and turning on X0, store in D1. Digital switch X2F to X20 (b) Setting confirmation of send data: (sending side) Confirm the setting of the send data (D1) with the digital display Y60 to Y6F. Digital display Y6F to Y60 Displays the current value of D1.
4.2 Access Operation to Other Stations Connect the peripheral devices to the PLC, and access to the other stations. When accessing to the other stations, the same functions can be used as those used when accessing to the host station.
From the previous page 3) The confirmation message appears. Click the Yes button. 3) Click! 4) Double-click [NET/10(H)] in [Network route]. 4) Double-click! 5) Set the access target network No. and the station No., then click the OK button. 5) Click! 6) Confirm that the network No. and the station No. are changed. 7) Click the OK button. 7) Click! 8) The bottom of the screen is displayed as shown on the left. PLC type Other station Network No. Station No.
4.3 Direct Access to Link Device of Network Module (Direct Access) The link devices (LB, LW, LX, LY, SB, SW) of the network module can be directly read or written by the sequence program regardless of the link refresh of the PLC CPU. The link devices that are not set within the range of the link refresh (which reads/writes the link devices between the CPU and the network modules) with the network refresh parameters can also be read or written.
Direct access instructions Designate the network number and link device to be read or written. \ Link relay B0 to 3FFF Link register W0 to 3FFF Link input X0 to 1FFF Link output Y0 to 1FFF Special link relay SB0 to 1FF Special link register SW0 to 1FF Network No 1 to 239 (1) Reducing the link refresh time The refresh time can be reduced by excluding the link devices, which are less frequently used in the host station, from the link refresh range using the direct access.
(2) Transmission delay time (a) Normal (refresh) processing B0 Sequence scan (sending side) 0 END 0 END Varies depending on the sequence program Wait until END Link scan B0 Sequence scan (receiving side) 0 END 0 (b) Direct processing J10\B0 Sequence scan (sending side) 0 END 0 END Link scan Sequence scan (receiving side) 0 J10\B0 4 - 23 END J10\B0 0 END END
(3) Specifying direct access instruction (a) For reading Read the entire range of the link device addresses of the network module. (b) For writing 1) Make sure to write into the range that has not been set as a link refresh range within the send range of the host station.
2) If an address within the link refresh range is designated, the data is written when the instruction is executed. However, the link device of the network module is overwritten with the link device data of the CPU by the link refresh. Make sure to write the same data to the link device of the CPU simultaneously when writing by direct access. (Same for B, Y, SB and SW.
4.3.2 Confirming that communication can be performed with direct access Change the program device described in Section 3.9 to confirm that communication can be performed. Change the refresh parameters as well. (1) Device change B J10\ B SB J10\ SB W J10\ W SW J10\SW (2) Refresh parameter Delete the settings of refresh parameters. Delete (3) The following shows the part of the 10MP1 program.
Chapter 5 5.1 5.1.1 Assignment III (Remote I/O network) Remote I/O Network Outline of remote I/O network The MELSECNET/H remote I/O network system has more functionality and capacity than the former network system, MELSECNET/10 network system (hereafter referred to as MELSECNET/10).
POINT (1) Select the QCPU when a PLC is selected for the MELSECNET/H remote I/O network. (2) The remote I/O network and the PLC to PLC network cannot be mixed on the same MELSECNET/H network. Always build separate networks. (3) Only MELSECNET/H network modules can be connected to the MELSECNET/H remote I/O network. They cannot be mixed with MELSECNET/10 network modules. 5.1.2 Features of remote I/O network The MELSECNET/H remote I/O network has the following features.
(2) Large-scale and flexible system configuration (a) The link device has a larger capacity: 16384 points for the link relay (LB) and 16384 points for the link register (LW). The ink input (LX) and link output (LY) have 8192 points. (b) A maximum of 4096 I/O points can be set for each remote I/O station. The link points between a remote master station and a remote I/O station can be set up to 1600 bytes.
2) Link dedicated instructions can be used to directly read/write from/to the buffer memory of the intelligent module. • REMFR instruction: Reads data from the buffer memory of the remote I/O station intelligent function module. • REMTO instruction: Writes data to the buffer memory of the remote I/O station intelligent function module. REMTO Remote I/O station Remote master station Intelligent function module QCPU QCPU Network module Network module Z.
(b) The interrupt sequence program of the host's CPU module can be started up using the event issue function. This function reduces the response time of the system and enables the real-time data reception.
(5) Strengthening network functions (a) The intelligent function modules mounted to the remote I/O stations can be diagnosed using the GX Developer system monitor. The intelligent function modules mounted to the remote I/O stations can be diagnosed using the system monitor even if it is done via the network using a GX Developer connected to a remote master station or even if the GX Developer is directly connected to a remote I/O station.
5.2 Demonstration Machine System Install the network module to the demonstration machine, connect the optical fiber cable and set the switches and network parameters of each network module as the following table. (Delete the existing network parameters before creating new network parameters.
5.3 5.3.1 Names and Settings of Network Module Remote master station (QJ71LP21-25) settings The network module QJ71LP21-25 of 20MR is used as a remote master station. Set as a remote master station. It is not required to change 10MP1, 10NS2, 10NS3, 10NS4 and 10NS5. 3) LED displays 1) STATION No. (factory default setting: 1) Set the remote master station to "1". When there is a setting error, the "ERR" LED will come on in red. 2) MODE (factory default setting: 0) This switch sets the operating mode.
5.3.2 Names and settings of remote I/O station (QJ72LP25-25) This section explains the names and settings of each part of the 20R1 remote I/O station network module QJ72LP25-25. Install the QJ72LP25-25 to the CPU slot of the base unit. -25 1) LED indicator section 2) RS-232 connector For connecting RS-232 connector for peripheral equipment 3) STATION No. (Factory setting: 1) : Station setting switch Station numbers can be set inside the same network.
1) LED displays No. Name LED status 1 RUN Green on Module operating normally 2 REM. Green on Module operating normally Off Green flash Off 3 T.PASS Off D.LINK WDT error occurred (hardware error) Parameters being written to flash ROM or device is in test mode. In remote initialization, an error (WDT error, blown fuse error, input/output verification error, etc.) occurred.
5.4 Parameter Settings of Remote I/O Network To make the remote I/O network operate, it is required to set parameters in both the remote master station CPU module and the remote I/O station network module using GX Developer. (1) Parameter settings for the remote master station Setting the number of module cards Network type MNET/H (Remote master) Network settings 1) Starting I/O No. 2) Network No.
(2) Parameter settings for remote I/O station Set the following functions as necessary. Required PLC Parameters 1) 2) 3) 4) Not required PLC system settings PLC RAS settings Operational settings I/O assignment Intelligent function module parameter settings Set the following functions as necessary.
5.4.1 Remote master station parameter settings Set the network parameters to the PLC CPU of PLC 5 (remote master station). As the setting of PLC 1 (10MP1), PLC 2 (10NS2), PLC 3 (10NS3) and PLC 4 (10NS4) is the PLC to PLC network, it is the same as Assignment I. (1) Setting the number of module cards (network type), network setting POINT For the total number of (slave) stations, set the number of the remote I/O stations other than the remote master station.
POINT (1) Set the input/output numbers loaded on the remote I/O station module for the setting of the remote master station side. Remote I/O station Remote master station X 0 Y X Y 0 Actual I/O 1FFF 1FFF If set shifted from the loaded condition, a malfunction will occur in the operation.
(3) Refresh parameter POINT Note that there are no default settings for the LX/LY points in the refresh parameters. A CPU module that does not have the number of points set cannot input and output the network link devices LX/LY.
5.4.2 Remote I/O station parameter settings The following parameters are set for the remote I/O station as needed and are written to the remote I/O module. Prameters for the remote I/O station are shown below. However, the remote I/O station can operate with the default settings of the remote I/O module, so writing the parameters to the remote I/O module is not needed in Assignment III. (1) PLC parameter In the remote I/O module, the PLC parameters similar to those set in the CPU module can be set.
5.5 Confirmation with Sequence Program The signal and data sending/receiving are performed between PLC 1 to 5 in the PLC to PLC network (network No.10) and PLC 6 in the remote I/O network (network No.20). 5.5.1 Sequence program (1) Program of PLC 1 to 4 Add the following program to the program of Assignment I. Path name A: Assignment III Project name 1 SB20 SB47 SB49 MC 0 N0 N0 M0 M0 SW74.0 X2 B0 5 Y71 X3 K99 T0 T0 SW74.
(2) Program of PLC 5 Create a new program "REMOTE" and add to "MAIN" of Assignment I. REMARK Create and add a new program by selecting the [Project] - [Edit Data] - [New] menu. Add a new program "Remote" by pressing OK. Select Program. Input "Remote" for a newly added program name. PLC 5 is operated by two programs: one for the PLC to PLC network (10NS5) and the other for the remote I/O network (20MR, 10R1). Set a program in the program setting of the PLC parameters to scan both "MAIN" and "REMOTE".
Path name A: Assignment III Project name 5 SB120 SB147SB149 Remote I/O station status MC 0 N1 N1 M1 SB120: Network module status SB147: Baton pass status SB149: Data link status M1 SW174.1 B4FE 5 SW174.1 X102 B4FF Y76 Remote I/O station send data SM411 Y176 X103 SW74.0 B0 BIN X120 BCD W4FF K2Y68 SM411 24 BCD SW74.
5.5.2 Operation of demonstration machine The confirmation is made by operating the demonstration machine for PLC 1 to 5 and PLC 6. The following gives each part application of the demonstration machine.
(2) For CPU 6 (remote I/O station) PLC 2 (B100) PLC 4 (B300) PLC 5 (B400) PLC 3 (B200) For PLC 6 PLC 1 (B0) 10N S 5 (W400) Sends the value between X20 and X27. • • 10N S 4 10N S 3 (W300) (W200) 10N S2 10M P 1 (W100) (W0) Sends ON/OFF of X2. When X2 turns ON from PLC 1 to 5, Y71 to Y75 corresponding to each station flash. When X3 turns ON from PLC 1 to 5, the T0 count values from PLC 1 to 5 are displayed from Y40 to Y67.
MEMO 5 - 22
CHAPTER6 6.1 ASSIGNMENT VI (ROUTING FUNCTION) Routing Function The routing function is used to execute transient transmissions to stations having other network numbers in a multiple network system. In order to execute the routing function, it is necessary to set the "Routing parameters" to associate the network numbers of the request destination and the station that will 1 function as a bridge* between the networks.
Routing parameter setting Transfer Intermediate Intermediate to network network No. station No. No. 3 1 The setting is required only for the transfer target network No.3. 4 Request source 1M P1 1N S 3 1N S 2 3M P1 Network No.1 1N S 6 Network No.3 1N S 4 1N S 5 2M P1 2NS 4 3NS 5 Routing parameter setting 2N S 2 2N S 3 4 As the transfer target network No.1 is connected to the transfer target network No.2, the setting is not required.
6.2 Demonstration Machine System Install network modules to the demonstration machines, connect optical fiber cables to them, and set the switches and network parameters of each network module as shown in the following table. (Set new network parameters after clearing the existing network parameters.) PLC A Q02H Q02H X Y AD Station Station 2 1 PLC B Station 1 DA Q02H Q02H X Y AD DA Q02H Q02H Network No.1 Station Station 2 1 X X Y AD DA Network No.
6.3 Routing Parameters The following routing parameters are needed for performing the transient transmission such as data reading from the other network with the ZNRD instruction. • Set routing parameters based on the concept of "Accessing the station of network No. needs to pass the station number of network No. first". : Transfer target network No. : Relay target network No. : Relay target station No.
(2) Routing parameter of PLC A (3) Routing parameter of PLC B (4) Routing parameter of PLC C (5) Routing parameter of PLC 6-5 D
6.4 Checking with Program C0, C1 and C2 current value of station 2 (E) on the network No.150 are read to D100, D101 and D102 of station 1 (A) on the network No.1 with ZNRD instruction and displayed at Y60 to Y6F. 6.4.1 Reading/writing word devices of other stations (ZNRD/ZNWR) The ZNRD and ZNWR instructions are used for data reading/writing on the same network or other network by the transient function. (1) ZNRD/ZNWR instruction format (a) ZNRD (Network No. designation) Read instruction J.
(b) ZNWR (Network No. designation) Write command J.ZNWR Jn n1 (D1) (S1) n2 (D2) J: Executed when on Jn n1 (D1) (S1) n2 (D2) JP: Executed at startup Write command JP.ZNWR Setting details Setting range Jn Network No.
6.4.2 Sequence program (1) Sequence program of the request source PLC (The link error detection program is omitted.) A Path name A: Assignment IV Project name A X0 Read instruction 0 J.ZNRD J150 K2 D100 K3 C0 Reading the word device of other stations M5 SM 400 Always on 13 BCD D100 K4Y60 17 END (2) Sequence program of the request source PLC (The link error detection program is omitted.
POINT (1) When the networks are connected in a loop as shown in the figure below, be sure to set the routing parameters so that the request is transmitted via the same relay stations both for the "route from the request source to the request designation" and the "route back from the request destination to the request source." Do not make a setting as the request circles the entire loop by both paths.
MEMO 6 - 10
APPENDIX Appendix 1 Comparison of Network Module Specifications, and Compatibility Appendix 1.1 Specification comparison list between MELSECNET/H mode and MELSECNET/10 mode The MELSECNET/H supports both the MELSECNET/H mode (high functionality/high-speed mode) and the MELSECNET/10 mode (functional compatibility/performance compatibility mode), which are explained in this textbook. When the MELSECNET/10 mode is used, it is easy to make connection with the AnU/QnA corresponding MELSECNET/10.
Appendix 1.2 Compatibility between the function version B and the function version A The following explains the compatibility between the function version B and the function version A of the network module QJ71LP21(-25)/QJ71BR11 on PLC to PLC network. The function version B is compatible within the range of the function version A. When replacing the network module from the function version A to the function version B, it is not required to change the settings for parameters, programs and switches.
Appendix 2 Differences between the QJ71LP21/QJ71LP21-25/QJ71BR11 and the AJ71LP21/AJ71QBR11, A1SJ71QLP21/A1SJ71QBR11 Appendix 2.1 Differences in LED displays and switch settings The MELSECNET/H network modules QJ71LP21, QJ71LP21-25 and QJ71BR11 have the same LED displays and switch settings as those of the MELSECNET/10 network modules AJ71QLP21, AJ71QBR11, A1SJ71QLP21 and A1SJ71QBR11. However, each network module has the following differences from others as shown in the table below.
Appendix 2.
Appendix 2.3 Precautions when changing over from the MELSECNET/10 remote I/O network to the MELSECNET/H remote I/O network. The following describes the precautions to take when switching from the AnUCPU, QnACPU MELSECNET/10 remote I/O network to the QCPU MELSECNET/H remote I/O network. (1) Cannot be mixed with other network modules. The MELSECNET/10 network modules and MELSECNET/H network modules cannot be mixed. • The MELSECNET/H remote I/O modules cannot be connected to the MELSECNET/10 master modules.
Appendix 3 Link Special Relay (SB) List The link special relay turns on/off by various factors that occur during data linking. Thus, by monitoring or using it in the sequence program, the abnormal status of the data link can be checked. Moreover, the link special relay (SB) that stores the link status is used for the detailed information of the network diagnostics of GX Developer.
Link special relay (SB) list (Continued) Use permitted/prohibited SB0007 (7) Clear forward loop transmission errors Clears the line abnormal detection (SW0CC) of the forward loop side to 0. Off: Clear not instructed On: Clear instructed (valid when on) *2 SB0008 (8) Clear reverse loop transmission errors Clears the line abnormal detection (SW0CD) of the reverse loop side to 0.
Link special relay (SB) list (Continued) Use permitted/prohibited station station Remote Remote station Indicates the host's data link operation status. Off: Normal On: Abnormal (Set after refreshing completes.) *3*4 SB004A (74) Host CPU status (1) Indicates the host's CPU status. Off: Normal On: Minor error occurred — — *3*5 SB004B (75) Host CPU status (2) Indicates the host's CPU status.
Link special relay (SB) list (Continued) Use permitted/prohibited *3 SB0056 (86) Indicates the status of the transient transmission. (Valid when SB0047 is off.) Communication status Off: Transient transmission by control station On: Transient transmission by sub-control station SB0057 (87) Parameter type SB0058 (88) Indicates the status of cyclic transmission when a control station is down.
Link special relay (SB) list (Continued) Use permitted/prohibited *3 SB007A (122) Indicates the low-speed cyclic communication status. Low-speed cyclic It is indicated to have transmitted by turning the bit on for either SB007A or communication status SB007B. *3 SB007B (123) Low-speed cyclic communication status SB007A SB007B Cycle interval *3 SB007C (124) Parameter status of each station Indicates the parameter status of each station.
Link special relay (SB) list (Continued) Use permitted/prohibited Indicates the status of the stations connected to the reverse loop. Off: All stations normal On: Faulty station exists This relay turns off when SW0095 to SW0098 are all "0". *3 SB0095 (149) Reverse loop status *3 SB0096 (150) Reverse loop status of Indicates the reverse loop status of the remote master station.
Link special relay (SB) list (Continued) Use permitted/prohibited *3 SB00AC (172) Indicates the offline test instruction status. Offline test instruction Off: Not instructed On: Instructed *3 SB00AD (173) Indicates the offline test completion status. Offline test completion OFF: Not completed ON: Completed *3 SB00AE (174) Offline test response designation Indicates the offline test response status.
Appendix 4 Link Special Register (SW) List The data linking information is stored in the link special registers in numerical values. They can be used by the sequence programs, or used for investigating faulty areas and the causes of errors by monitoring them. The link special register (SW) that stores the link status is used for the detailed information of the network diagnostics of GX Developer.
Link special register (SW) list (Continued) Logical channel SW000B setting (11) (channel 4) Logical channel SW000C setting (12) (channel 5) Logical channel SW000D setting (13) (channel 6) Logical channel SW000E setting (14) (channel 7) Logical channel SW000F setting (15) (channel 8) SW001C Number of retries (28) SW001D Retry interval (29) SW001E Number of gates (30) SW0020 Module status (32) ZNRD instruction processing result SW0031 (49) Send/receive instruction (1) processing result ZNWR instruction pr
Link special register (SW) list (Continued) Indicates the processing results of the SEND/RECV/READ/WRITE/REQ/RECVS/RRUN/ Send/receive RSTOP/RTMRD/RTMWR/REMFR/REMTO instructions (when the physical channel 6 is SW003B instruction (6) used). (59) processing result 0 : Normal completion 1 or more : Abnormal completion (Refer to Appendix 7.
Link special register (SW) list (Continued) Stores the cause of baton pass interruption of the host. 0 : Normal communication SW0048 Cause of baton 1 : Offline (72) pass interruption 2 : Offline test 3 or more : Cause of interruption (Refer to Appendix 7.1 for error codes) Stores the cause of data linking stop of the host.
Link special register (SW) list (Continued) Stores the status of the parameters. *2 Parameter setting SW0055 0 : Normal parameter status (85) 1 or more : Abnormal parameter (Refer to Appendix 7.1 for error codes) At the PLC to PLC network Current control Stores the number of the station that actually operates as the control station (including a station sub-control station). 2 * Range : 1 to 64 SW0056 When remote I/O network (86) Current remote Stores the station number controlling the current baton pass.
Link special register (SW) list (Continued) *2 Maximum link SW006B scan time (107) *2 Minimum link SW006C scan time (108) Stores the maximum/minimum/current values of the link scan time (unit (ms)). The values of the control station and normal stations vary.
Link special register (SW) list (Continued) *2 SW0074 (116)/ SW0075 (117)/ SW0076 (118)/ SW0077 (119) Stores the cyclic transmission status of each station.
Link special register (SW) list (Continued) Stores the CPU RUN status of each station. (including the host) Valid only for stations registered as normal in the SW70 to SW73.
Link special register (SW) list (Continued) Use permitted/prohibited Loopback station *2 SW0099 (forward loop (153) side) Loopback station 2 * SW009A (reverse loop (154) side) SW009C (156)/ SW009D Loop usage (157)/ status of each SW009E station (158)/ SW009F (159) Stores the number of stations executing the loopback on the forward loop side. Range: 1 to 64 Stores the number of stations executing the loopback on the reverse loop side.
Link special register (SW) list (Continued) Stores the online test items on the responding side. (Valid when the SB00AB is on.) b15 SW00AA 0 to b8 b7 to to 0 to Online test *2 SW00AA execution item (170) (responding side) b0 Item number 10H: Loop test 20H: Setup confirmation test 30H: Station order check test 40H: Communication test Stores the online test result on the responding side. (Valid when the SB00AB is on.
Link special register (SW) list (Continued) *2 SW00B0 (176)/ SW00B1 Multiplex (177)/ transmission SW00B2 status (1) (178)/ SW00B3 (179) *2 SW00B4 (180)/ SW00B5 Multiplex (181)/ transmission SW00B6 status (2) (182)/ SW00B7 (183) Coaxial Optical Coaxial Optical Coaxial Optical Description Coaxial Name Optical Number Use permitted/prohibited Remote Remote Control Normal master I/O station station station station Stores each station's forward loop usage status during multiplex transmission.
Link special register (SW) list (Continued) Coaxial Optical Coaxial Optical Coaxial Optical Description Coaxial Name Optical Number Use permitted/prohibited Remote Remote Control Normal master I/O station station station station *2*3 UNDER on the Accumulates and stores the number of "UNDER" errors on the reverse loop side. SW00C0 reverse loop side 0 or more: Number of errors (192) *2*3 CRC on the Accumulates and stores the number of "CRC" errors on the reverse loop side.
Link special register (SW) list (Continued) Coaxial Optical Coaxial Optical Coaxial Optical Description Coaxial Name Optical Number Use permitted/prohibited Remote Remote Control Normal master I/O station station station station Stores the cause and status of the loop switching. Whether the data should be overwritten or retained is set in the common parameters.
Link special register (SW) list (Continued) *9 Transient Accumulates and stores the number of transient transmission errors. SW00EE transmission error 0 or more: Number of errors (238) Transient *9 SW00EF transmission error Stores the pointer that sets the data for the next transient transmission error. (239) pointer *2 SW00F0 Transient (240) Stores the error data of the transient transmission errors. (Refer to Appendix 7.
Appendix 5 Special Relay (SM) List for Remote I/O Station The special relays SM are the internal relays whose specifications are specified by the CPU and the remote I/O module. For this reason, they cannot be used by the sequence program in the same way as the normal internal relays. However, they can be turned ON or OFF as needed in order to control the CPU and the remote I/O modules. Use the GX Developer to monitor and control the ON/OFF functions of the remote I/O module's special relay.
Special Relay List (1) Diagnostic Information Number Name Meaning SM0 Diagnostic errors OFF : No error ON : Error SM1 Self-diagnostic error OFF : No self-diagnosis errors ON : Self-diagnosis SM5 Error common information SM16 Error individual information SM50 Error reset SM60 Fuse blown detection OFF : No error common information ON : Error common information OFF : No error common information ON : Error common information OFF ON: Error reset OFF : ON : SM61 I/O module OFF : verification er
Appendix 6 Special Register (SD) List for Remote I/O Station The special registers SD are the internal registers whose specifications are specified by the CPU and the remote I/O module. For this reason, they cannot be used by the sequence program in the same way as the normal internal registers. However, they can be used to write data as needed in order to control the CPU and remote I/O modules. Data stored in the special registers are stored as BIN values unless otherwise specified.
(1) Diagnostic Information Number SD0 Name Diagnostic errors Meaning Diagnosis code Set by (When set) Explanation Applicable ACPU D9 Applicable CPU error • Error codes for errors found by diagnosis are stored as the BIN codes. S (Error D9008 format occurrence) change • Contents identical to the latest fault history information. • The year (last two digits) and month that SD0 data was updated are stored as the BCD 2-digit code.
Special Register List (Continued) Number SD5 SD6 SD7 SD8 Name Meaning Set by (When set) Explanation Applicable ACPU D9 Applicable CPU • The common information corresponding to the error codes (SD0) is stored here. • The following five types of information are stored here: 1) Unit/module No. Meaning Slot No./PLC No. *1 *2 I/O No.
Special Register List (Continued) Number Name Meaning SD5 Explanation Set by (when set) Applicable ACPU D9 S (Error occurrence) New S (Error occurrence) New Applicable CPU (Continued) 3) Time (set value) SD6 SD7 Number SD8 SD5 SD6 SD7 SD8 SD9 SD10 SD11 SD12 SD13 SD14 SD15 SD9 SD10 SD11 SD12 SD13 SD14 SD15 Meaning Time: 1 s units (0 to 999 s) Time: 1 ms units (0 to 65535 ms) (Vacant) 4) Program error location Meaning SD5 SD6 File name (ASCII code: 8 characters) SD7 SD8 SD9 Extension *3 2E
Special Register List (Continued) Number Name Meaning Explanation Set by (When set) Applicable ACPU D9 S (Error occurrence) New Applicable CPU • Individual information corresponding to error codes (SD0) is stored here. • The following six types of information are stored here: 1) File name/Drive name SD16 SD17 SD18 SD19 SD20 Meaning SD16 Drive SD17 SD18 File name SD19 (ASCII code: 8 characters) SD20 2EH(.
Special Register List (Continued) Number Name Meaning Explanation Set by (when set) Applicable ACPU D9 U New + Rem + Rem SD50 Error reset Error number for error reset to • Stores the error number for which the error reset is performed be performed SD53 AC DOWN detection Number of times for AC DOWN • Each time the voltage falls below 85% of the rating (AC power/ 65% S (Error DC power) while the CPU module is calculating, it will be saved as a occurrence) BIN code with 1 added to the value.
Special Register List (2) System information Number Name Meaning Explanation Set by (when set) Applicable ACPU D9 Applicable CPU S (Always) New Rem S (Every END processing) New QCPU S (Every END processing) New QnA • The switch status of the remote I/O module is stored in the following format.
Special Register List (Continued) Number Name Meaning Set by (when set) Explanation Applicable Applicable ACPU CPU D9 • The operating status of the remote I/O module is stored in the following format.
Special Register List (Continued) Number SD240 SD241 SD242 Name Set by (When set) Applicable ACPU D9 The base mode is stored. S (Initial) New • Stores the maximum number of the extension bases being installed. S (Initial) New Meaning 0: Automatic mode 1: Detail mode 0: Main only 1 to 7: No.
Special Register List (Continued) Number Name Meaning Explanation I/O No. SD342 Network No. • Ethernet network No. of the 1st module installed. SD343 Ethernet information SD347 SD348 to SD354 SD355 to SD361 Ethernet information SD362 to SD368 Information of 1st module SD341 SD345 to SD346 Applicable ACPU D9 S (Initial) New Applicable CPU Number of • Indicates the number of modules installed on Ethernet. modules installed SD340 SD344 Set by (When set) Group No. • Ethernet I/O No.
(4) Fuse blown module Number Name Meaning SD1300 SD1301 SD1302 SD1303 SD1304 SD1305 SD1306 SD1307 Fuse blown module SD1308 SD1309 to SD1330 Bit pattern in units of 16 points, indicating the modules whose fuses have blown 0: No fuse blown 1: Fuse blown present Set by (When set) Explanation 1 SD1301 (Y1F0) 0 0 0 0 SD1331 0 0 0 (Y1F B0) 0 7 6 5 4 3 2 1 0 (Y80) 0 0 0 0 0 0 0 0 (Y1A) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (Y1F 30) 0 0 0 1 1 8 1 1 D9101 D910
Appendix 7 Error Codes When data linking cannot be performed using the cyclic transmission, or when communication cannot be normally performed using the transient transmission with an instruction of a sequence program or GX Developer, the error codes (hexadecimal) are stored in the link special register or displayed on the GX Developer's system monitor. Appendix 7.1 Error codes of PLC to PLC network Error Code List Error No.
Error Code List (Continued) Error No. Description of error Corrective action F11B Being disconnected F11F Initial status (no baton addressed to host) F122 Send failure (in the case of bus) F222 No free area in the receive buffer (buffer-full error) F224 F225 Receive data size error Logical channel number error F226 Channel number error F701 F702 F703 F705 F707 Designated station error 1) When sending a data: sent to station number 0.
Error Code List (Continued) Error No. Description of error Corrective action F7C9 The host station number is specified in the target station number. The execution type of designating all stations or designating group is "With arrival confirmation". The resend count is out of the setting range. F7CA Arrival monitoring time setting out of range F7C7 F7C8 F7CB F800 F801 F803 F804 F820 The sent data length of the SEND instruction is out of the setting range.
Error Code List (Continued) Error No. Description of error Corrective action Check for the coaxial cable connection and its loose, the connection of terminating resistors, and the cable faults. Retry a test. (Do not switch the loop in the middle of the operation.) (If the error frequently occurs, check the line and the wiring status.) Retry a test.
Appendix 7.2 Error codes of remote I/O network Error Code List Error No. F101 Description of error Corrective action Initial status Make SB0047 (baton pass status) and SB0049 (data link status) turn off (normal). Error No. turns off automatically when the baton pass and data link recover.
Error Code List (Continued) Error No. Description of error Corrective action F11F Initial status (no baton addressed to host) F122 Send failure (in the case of the bus) F222 No free area in the receive buffer (buffer-full error) F226 Channel number error F228 SEND instruction is executed to remote I/O station. F701 F702 F703 F705 F707 Designated station error 1) When sending a data: sent to station number 0. When receiving a data: received the message not destined for host station.
Error Code List (Continued) Error No. Description of error Corrective action F832 Startup denied (Startup on condition of no startup) F833 Keyword error (Startup on the station that is not station stopped) F837 Exceeded number of retries F838 Relevant timer timeout If the data link is stopped under all stations designation, start all stations. If the data link is stopped under other stations designation, the automatic start is denied. Startup on the station that is station stopped.
Error Code List (Continued) Error No. Description of error Corrective action A station to which a test request is not available was specified. C : CPU module N : Network module FD3A Communication test request destination error (communication test) C N FE21 Data error (The received data cannot be processed. ACPU other than AnUCPU is designated as relay station.
Appendix 7.3 Error codes corresponding to CPU module detected on remote I/O Station The remote I/O station performs some of the same processes as the CPU module. Accordingly, the remote I/O station detects the error codes in the same way they are detected by the CPU module.
Error Code (SD0) *1 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 Corrective Action Applicable CPU Run mode suspended or failure of main CPU (1) Malfunctioning due to noise or other reason (2) Hardware fault (1) Take noise reduction measures. (2) Reset the CPU module and RUN it again. If the same error is displayed again, this suggests a CPU hardware fault. Contact your local Mitsubishi representative.
Error Code List (Continued) Error Code (SD0) *1 1310 1401 Error Messages I/O INT ERROR SP.UNIT DOWN Common Information (SD5 to 15) *1 Individual Information (SD16 to 26) *1 RUN ERROR Operating status of CPU Diagnostic Timing Unit/module No. ——— Off Flicker Stop At an interrupt occurred Unit/module No. ——— LED Status Off Flicker Stop/Continue *5 At power ON/At reset/At intelligent function module accessed.
Error Code (SD0) *1 Error Contents and Cause Corrective Action 1310 An interruption has occurred although there is no interrupt module. 1401 • There was no response from the intelligent function module at initial updated. • The size of the buffer memory of the intelligent function module is wrong. When parameter I/O allocation was being made, there was no return signal from the special function module at initial communication.
Error Code List (Continued) Error Code (SD0) *1 Error Messages Common Information Individual Information (SD16 to 26) LED Status Operating status of CPU RUN ERROR Diagnostic Timing 2000 UNIT VERIFY ERR. Unit/module No. ——— Off/On Flicker/ On Stop/Continue *2 At an END instruction executed 2100 SP.UNIT LAY ERR. Unit/module No. ——— Off Flicker Stop At power ON/ At reset SP.UNIT LAY ERR. Unit/module No. ——— Off Flicker Stop At power ON/At reset 2105 SP.UNIT LAY ERR.
Error Code (SD0) *1 2000 2100 2101 2102 2103 2104 2105 Error Contents and Cause Corrective Action Applicable CPU QCPU At a multiple CPU system configuration, the QCPU of function Replace the QCPU of function version A with that of function function Ver. version A is mounted. version B. B or later Read the error common information with the peripheral device, and check and/or change the module that I/O module information at power ON is changed.
Error Code List (Continued) LED Status Common Information (SD5 to 15) Individual Information (SD16 to 26) RUN ERROR Operating status of CPU Diagnostic Timing SP.UNIT LAY ERR. Unit/module No. ——— Off Flicker Stop At power ON/ At reset SP.UNIT ERROR Unit/module No. Program error location Off/ On Flicker/ On Stop/Continue *2 At an instruction executed Program error location Off/ On Flicker/ On Stop/Continue *2 At an instruction executed/At changing from STOP to RUN Unit/module No.
Error Code (SD0) *1 2107 2108 6 2109 * Corrective Action Head X/Y set in the parameter I/O allocation settings duplicates the head X/Y for another module. (1) Network module A1SJ71LP21, A1SJ71BR11, A1SJ71AP21*, A1SJ71AR21, or A1SJ71AT2*B dedicated for the A2USCPU has been mounted. (2) Network module A1SJ71QLP21 or A1SJ71QBR11 dedicated for the Q2AS has been mounted. Network module A(1S)J71LP21 or A(1S)J71BR11 dedicated for the AnUCPU has been mounted.
Error Code List (Continued) Error Code (SD0) *1 Common Information (SD5 to 15) Individual Information (SD16 to 26) ICM.OPE.
Error Code (SD0) *1 2300 2301 2302 2400 2401 2410 2411 2412 2413 2500 2501 2502 2503 2504 3000 3001 3002 Error Contents and Cause Corrective Action (1) A memory card was removed without switching the memory card in/out switch OFF. (2) The memory card in/out switch is turned ON although a memory card is not actually installed. (1) The memory card has not been formatted. (2) Memory card format status is incorrect. A memory card that cannot be used with the Q/QnACPU module has been installed.
Error Code List (Continued) Error Code (SD0) *1 LED Status Common Information (SD5 to 15) Individual Information (SD16 to 26) RUN ERROR Operating status of CPU Diagnostic Timing PARAMETER ERROR File name/ Drive Name Parameter number Off Flicker Stop At an END instruction executed PARAMETER ERROR File name Parameter number Off Flicker Stop At power ON/ At reset/ At changing from STOP to RUN PARAMETER ERROR File name Parameter number Off Flicker Stop At power ON/ At reset/ At chang
Error Code (SD0) *1 Error Contents and Cause Applicable CPU Corrective Action QCPU Automatic refresh range of the multiple CPU system exceeded the Change the file register file for the one refresh-enabled in function Ver. file register capacity. the whole range. B or later 3003 (1) Read the detailed information of the error using the peripheral device, check the parameter items corresponding to those numerical values (parameter numbers), and correct when necessary.
Error Code (SD0) *1 LED Status Common Information (SD5 to 15) Individual Information (SD16 to 26) RUN ERROR Operating status of CPU Diagnostic Timing LINK PARA.ERROR File name Parameter number Off Flicker Stop At power ON/ At reset/ At changing from STOP to RUN LINK PARA.ERROR File name/ Drive Name Parameter number Off Flicker Stop At an END instruction executed LINK PARA.ERROR File name Parameter number Off Flicker Stop LINK PARA.
Error Code (SD0) *1 3102 3103 3104 3105 Error Contents and Cause Corrective Action An error was occurred on the network module by result of network (1) Correct and write the network parameters. parameter check. (2) If the error occurs after correction, it suggests a The unique parameter for MELSECNET/H and MELSECNET/10 is hardware fault. Contact your nearest Mitsubishi not correct. representative.
Error Code List (Continued) LED Status Common Information (SD5 to 15) Individual Information (SD16 to 26) RUN ERROR Operating status of CPU Diagnostic Timing ——— ——— Off Flicker Stop At power ON/ At reset/ At changing from STOP to RUN INSTRCT CODE ERR. Program error location ——— Off Flicker Stop At power ON/ At reset/ At changing from STOP to RUN 4004 INSTRCT CODE ERR. Program error location ——— Off Flicker Stop 4010 MISSING END INS.
Error Code (SD0) *1 3400 3401 Error Contents and Cause Corrective Action The head I/O number of the target module in the remote password file is set to other than 0H to 0FF0H. The position specified as the head I/O number of the remote password file is incorrect due to one of the following reasons: • Module is not mounted. • Other than the Q corresponding intelligent function module (I/O, A, QnA module) • Intelligent function module other than the QJ71C24 (-R2) and QJ71E71 (-B2).
Error Code (SD0) *1 LED Status Error Messages Common Information (SD5 to 15) Individual Information (SD16 to 26) RUN ERROR Operating status of CPU Diagnostic Timing CAN’T EXECUTE(P) Program error location ——— Off Flicker Stop At an instruction executed CAN’T EXECUTE(I) Program error location ——— Off Flicker Stop At an instruction executed INST.FORMAT ERR. Program error location ——— Off Flicker Stop At an instruction executed EXTENDINST.ERR.
Error Code (SD0) *1 4210 4211 4212 4213 4220 4221 4223 4230 4231 4235 4300 4301 4400 4410 4411 4420 4421 Error Contents and Cause Corrective Action The CALL instruction is executed, but there is no destination pointer. Read the common information of the error using a peripheral device, check the error step corresponding to its There is RET instruction before FEND instruction in the main numerical value (program error location), and correct the problem. program.
Error Code List (Continued) Error Code (SD0) *1 Common Information (SD5 to 15) Individual Information (SD16 to 26) WDT ERROR Time (Setting value) PRG.
Error Code (SD0) *1 5000 5001 5010 5011 Error Contents and Cause Corrective Action The scan time of the initial execution type program exceeded the initial execution monitoring time designated in the PLC RAS setting of Read the individual information of the error using a the parameter. peripheral device, check its value (time), and shorten the scan time. The program scan time exceeded the WDT setting value designated in the PLC RAS setting of the parameter.
Error Code List (Continued) Error Code (SD0) *1 Error Messages Common Information (SD5 to 15) Individual Information (SD16 to 26) LED Status RUN ERROR On Off Operating status of CPU Diagnostic Timing Continue At an instruction executed Continue At an instruction executed 9000 F**** *6 Program error location Annunciator number 9010 ERR ***-*** *7 Program error location Failure No. 9020 BOOT OK ——— ——— Off Flicker STOP At power ON/ At reset 10000 CONT.
Error Code (SD0) *1 Error Contents and Cause Corrective Action 9000 Annunciator F was turned ON Read the individual information of the error using a peripheral device, and check the program of its numerical value (annunciator number). 9010 An error was detected by the CHK instruction. Read the individual information of the error using a peripheral device, and check the program of its numerical value (error number).
Appendix 8 Outline of Interrupt Sequence Program Startup The Q series have a function to start the interrupt sequence program of the host's CPU by issuing an interrupt request to the CPU module from the network module when the interrupt conditions are satisfied. The A maximum of 16 interrupt conditions can be set for each network module. (Advantages) 1) The startup of the interrupt sequence program of the applicable station can be instructed from other stations.
Appendix 8.1 Interrupt setting parameters The maximum of 16 interrupt conditions can be set for each device code of the interrupt setting conditions on the following setting screen. button to display the setting screen. Click the (Selections of the interrupt conditions for interrupt device codes and the valid setting ranges) Setting condition Device code Device No. Detection method Interrupt condition Word device setting value Channel No./connection No. Interrupt (SI) No.
REMARK The correspondence between the interrupt (SI) No. of the network module and the 1 interrupt pointer (I ) * on the CPU side are set on the PLC system setting screen in the PLC parameters as shown below. The following shows how to set these parameters on the PLC system setting screen using the interrupt setting parameters shown on the previous page. The interrupt (SI) No. (0 to 6) of the network module side are assigned to the interrupt pointers (I50 to I56) of the CPU side.
Appendix 8.2 Interrupts using the RECVS instruction An interrupt program can be started when the SEND instruction is received at the channel whose parameters are designated with the RECVS instruction. When "RECV instruction" is selected as the device code, the settings of "Channel No." and "Interrupt (SI) No." are enabled. In the example below, data is sent from station number 3 to channel 5 of station number 15 using the SEND instruction.
Appendix 8.3 Interrupts by the link devices (LB/LW/LX) for cyclic transmission The designated interrupt sequence program can be executed from other stations when the conditions of "rise/fall" of the link devices (LB/LW) and "equal to/not equal to" of the link register (LW) are satisfied. The following figure shows the comparison between the conventional and new interrupt sequence programs.
REMARK (1) When the sequence program executes at high speed, the scan time may take longer because the execution time of the interrupt program affects the performance of the interrupt program. (2) When multiple interrupts occur at the same time, the operation delay may occur. (3) This function cannot be used during offline or online testing. (4) Do not start the interrupt sequence program by the designated device's rise (PLS instruction, etc.) and fall (PLF instruction, etc.
Appendix 8.4 Interrupts by the special link device (SB/SW) The designated interrupt sequence program can be executed when the conditions of the control information (SB/SW) during data linking is satisfied. In the example below, designate the interrupt setting parameters for station number 15 so that the interrupt program is started when SB49 turns on (data link error occurred). [Interrupt setting parameters] Device code Device No.
Appendix 8.5 Message reception "one scan completion" instruction (RECVS instruction) This instruction reads the channel data that is sent to the host with the SEND instruction. The processing completes at the execution of this instruction; thus, the processing speed of this instruction is faster than that of the RECV instruction. (1) Instruction format of RECVS Execute command Z.
(Configuration of the control data (S1)) Data set Device Item User (when executed)*1 System (when completed)*2 (S1) + 6 (Use prohibited) — — (S1) + 7 (Use prohibited) — — (S1) + 8 (Use prohibited) — — — — (S1) Execution/abnormal completion type (S1) + 1 Completion status (S1) + 2 Host storage channel (S1) + 3 Channel used by the sending station (S1) + 4 Sending station network No.
(2) Instruction execution timing 1) Normal completion SEND (With arrival confirmation) Sequence scan 0 END 0 END 0 END 0 END 0 END Send command Sending side CPU Send completion device (Device designated in (D1)) One scan Network module Channel 3 Storage completion Data sending Network module Channel 15 RECVS Interrupt program IRET Sequence scan END 0 END END One scan completion Receiving side CPU SM0 error flag SD0 error code OFF =0 Receive data storage device (Device designate
2) Abnormal completion RECVS instruction Data receiving Network module Channel 15 RECVS Interrupt program Sequence scan IRET END 0 END END Receiving side CPU SM0 error flag SD0 error code Error code Receiving data storage device (Device designated in (D1)) App - 80 0 END 0 END
Appendix 8.6 Application example The following explains the parameter settings and program examples. CPU Network module Station No. 3 Network module Station No. 15 Channel 1 Channel 1 Channel 2 Channel 2 Interrupt program execution Channel 3 Channel 3 I50 Channel 4 Channel 4 Channel 5 Channel 5 Channel 6 Channel 6 Channel 7 Channel 7 Channel 8 Channel 8 SEND CPU RECVS IRET Network No.
(3) Program examples (a) Program for station number 3 When actually using the following program, interlock the program by referring to Appendix 9.1.1.
Appendix 9 Programming Appendix 9.1 Appendix 9.1.1 Programming precautions Interlock related signals A list of the interlock signal devices used in the sequence programs is provided below. Refer to Appendix 3, "Link Special Relay (SB) List" and Appendix 4, "Link Special Register (SW) List" for other explanations, such as the operation status and setting status of the host and other stations.
Appendix 9.1.2 Interlock program example Interlocks should be applied to the programs according to the link status of the host and other stations. The following example shows an interlock in the communication program that uses the link status of the host (SB47, SB49) and the link status of station number 2 (SW70 bit 1, SW74 bit 1).
Appendix 9.2 Cyclic transmission The link scan of MELSECNET/H and the sequence scan of the PLC operate asynchronously. Thus, the link refresh executed per sequence scan is asynchronous with the link scan. Depending on the timing of the link refresh, the link data with data types of more than 32 bits (two words), such as the ones below, may be broken up into new and old data. • Floating point data • Current values of positioning module, command speed.
Appendix 9.2.2 Block guarantee of cyclic data per station By enabling the parameter settings shown below, the link data block is guaranteed for each station through the cyclic data handshaking (to prevent link data separation per 1 station* ). As shown below, set the send and receive parameters as needed. These settings can be made using the common parameters (supplementary settings) only for the control station.
Appendix 9.2.3 Interlock program example When handling data larger than two words (32 bits) at one time without using the 32-bit data guarantee function or the block guarantee per station function, the data may be broken up into new and old data. As in the example below, the program should be interlocked using the oldest number of the link relay (B) or link register (W). Sending station 1) 2) 3) 7) Receiving station 4) 5) 6) 1) 2) 3) 4) The send command turns on.
Appendix 9.3 Transient transmission To perform the transient transmission, it is necessary to provide an interlock as shown below. One network module has 8 channels for executing instructions. Although these channels can be used at the same time, the same channel cannot be concurrently used for multiple instructions. If execution of multiple instructions is attempted at the same time on the same channel, those to be executed later have to wait.
Appendix 10 Low-Speed Cyclic Transmission Function The low-speed cyclic transmission function is convenient when sending data that does not require a high-speed transfer to other stations in a batch mode using the cyclic devices (LB/LW). Although it is a cyclic transmission, the performance is the same as that of the transient transmission. A station can transmit data only once in a single link scan.
Appendix 10.1 Send range settings Each station's send range of link devices (low-speed LB, low-speed LW) is assigned to the extended area (2000 to 3FFF) in 16-point units for LB (start : 0 to end: F) and in one-point units for LW. Each station's send range can also be assigned using a random station number assignment sequence. The B/W device numbers on the CPU side that correspond to the extended area are not assigned.
Appendix 10.2 Send timing The low-speed cyclic transmission is executed separately from the normal cyclic transmission. Number of stations to be sent in 1 link scan varies depending on the parameter settings. When setting the [Transmit data of one station in 1 link scan], one station can transmit data once in 1 link scan for each link cycle of the low-speed cyclic. When setting the [Fixed term cycle interval setting] and [System times], the number of stations set in the [Maximum No.
Appendix 10.3 Startup (1) Sending of data for one station per link scan (default) The low-speed cyclic data for a maximum of one station is sent in one link scan of the normal cyclic transmission. [Setting method] 1) Click Transmit data of one station in 1 scan to select.
(Example) When setting the [Maximum No. of transients in 1 scan] of [Transient setting] to one. Start Data link of the control station Low-speed cyclic Fixed term cycle interval setting time 1 link scan Normal link scan Transmission data 1 Low 1 link scan 2 3 4 1 2 Low Fixed term cycle interval setting time 1 link scan 3 4 1 2 3 1 2 3 4 1 1 link scan Low 1 link scan 2 3 4 1 2 Low 3 4 1 2 3 (3) System timer interval The low-speed cyclic data is sent in the link cycle at the designated time.
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Mitsubishi Programmable Logic Controller Training Manual MELSECNET/H course(Q-series) Mitsubishi Programmable Logic Controller MELSECNET/H course(Q-series) Training Manual MELSECNET/H course(Q-series) MODEL SCHOOL-Q-NET10H-E MODEL CODE 13JW52 SH(NA)-080619ENG-A(0601)MEE HEAD OFFICE : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN NAGOYA WORKS : 1-14 , YADA-MINAMI 5-CHOME , HIGASHI-KU, NAGOYA , JAPAN When exported from Japan, this manual does not require application to the Minis
