2in1_fd-mh_um_e.book 1 ページ ２０１１年２月１０日 木曜日 午後１１時３８分 96143E RS-232C Communication Unit DL-RS1A User's Manual (FD-MH Edition) Read this manual before using the system in order to achieve maximum performance. Keep this manual in a safe place for future reference.
Introduction This manual provides an overview of the RS-232C communication unit DL-RS1A and describes the functions and procedures of the unit. Be sure to read this manual carefully to ensure safe performance and function of the unit. Keep this manual in a safe place for future reference. Ensure that this manual is passed to the end user. Safety Precautions General Cautions • At startup and during operation, be sure to monitor the functions and performance of the DL-RS1A for proper operations.
2in1_fd-mh_um_e.book 1 ページ ２０１１年２月１４日 月曜日 午前９時９分 Contents T6 (Sensor amplifier settings change time)............................................................................... 15 Safety Precautions Specifications General Cautions Handling Errors Operating Precautions Performance Specifications ........................................................................................... 16 Communication Specifications..................................................................................
Before Using the Unit Before Using the Unit (1) Communication setup switches You can use different ON/OFF combinations to configure the communication settings. Checking the Package Contents Setting Switch No. Combination Before using the DL-RS1A, check that the following items are all included. 1 2400bit/s 4800bit/s ON 2 Baud rate ON 1 2 3 9600bit/s* ON 1 2 3 19200bit/s 38400bit/s ON ON 1 2 3 1 2 3 1 2 3 * Factory default positions are shown.
Connecting the Unit to Sensor Amplifiers Before Using the Unit This section describes how to mount a DL-RS1A and connect it to sensor amplifiers. (5) Alarm indicator This indicator lights up in red. For information on the actions you should take when an alarm occurs, refer to "Troubleshooting" (page 17). After turning on the power, the alarm indicator lights for the following amount of time, and communication cannot be performed during this time. No.
Connecting the Unit to Sensor Amplifiers Connecting the Unit to Sensor Amplifiers ■ Connecting the DL-RS1A to DIN rail mount sensor amplifiers Connecting the Unit to Sensor Amplifiers 1 NOTICE Sensor amplifier Expansion protective cover Make sure that the sensor amplifiers are turned off before connecting the RS232C communication unit DL-RS1A to them. Connecting the unit while the sensor amplifiers are turned on may damage the unit.
Connecting the Unit to External Devices Connecting the Unit to External Devices ■ Connection wiring Communication Terminal Block Refer to the connection wiring diagram shown below when connecting DL-RS1A to an external device such as a PC. You can connect external devices such as a PC or PLC to the communication terminal block of DL-RS1A via the communication cables.
Communication Specifications Connecting the Unit to External Devices This section provides the communication specifications of DL-RS1A and describes how to configure the unit. Sample wiring DL-RS1A (Communication terminal block) *1 *2 SG 1 RD 2 SD 3 SG SG DRQ 6 Shield*2 External device (D-sub 9-pin) Communication Specifications Black, Black/White*1 Red The following table lists the communication specifications for DL-RS1A.
Commands and Responses Commands and Responses ■ Response Overview of Commands and Responses ID No. 00 01 02 08 09 When DL-RS1A successfully receives a command from the external device, it automatically returns a response based on ASCII codes. For information on the parameters used in the response, refer to "Parameters of Commands and Responses" (page 10). Command or DRQ input Sample response structure S Main Exp. Exp. Exp. Exp.
Commands and Responses Commands and Responses ■ Error response If DL-RS1A could not receive a command from the external device or if the received command included an error, it automatically returns an "error response" based on ASCII codes. For information on the parameters used in the error response, refer to page 10. R (1) , S R (2) , Command Error No. CR LF (3) (4) S (1) Contains "ER". (2) Contains the same communication command as the received command.
Commands and Responses Commands and Responses ■ Read output states and data from all sensor amplifiers (MS command) Writing Command M S External devices such as PLC's use the following communication commands to write data to DL-RS1A.
Parameters of Commands and Responses This section describes the parameters used with various commands and responses. Parameters of Commands and Responses ■ Data numbers Specify the data number using three digits (ASCII characters). Electromagnetic Digital Flow Sensor FD-MH Series ● Read-only data The following table lists the types of data that can only be read from FD-MH Series sensor amplifiers.
Parameters of Commands and Responses *2 *3 *4 *5 Parameters of Commands and Responses R: Indicates that the data type can only be read from the sensor amplifiers. When the instantaneous flow rate exceeds the indicated data range, "99.99", "999.9", or "9999.9" is returned as the data. Similarly, when the sensor amplifier displays ErH, ErS, or rEv, "EE.EE", "EEE.E", or "EEEE.E" is returned as the data.
Parameters of Commands and Responses Data No. Data name Sensor head Parameters of Commands and Responses Data No. of format*1 bytes *5 Attribute*2 Data range Data 044 Integrated flow quantity unit * 1 R/W - 045 Response time 046 Display mode 047 Hysteresis * 1 * 1 FD-MH10 *.** 4 FD-MH50 **.* 4 FD-MH100 **.* 4 FD-MH500 R/W R/W R/W ***.
Communication Response Time Parameters of Commands and Responses ■ Error numbers The following table lists the error numbers that are returned as error responses when errors occur in the communication between DL-RS1A and FD-MH Series sensor amplifiers. Each error number is identified with two digits (ASCII characters). Error No. Error name Problem Action Make sure that the external device has sent a command listed in "Communication commands" (page 10).
Communication Response Time Communication Response Time ■ DRQ input The data read in response to a DRQ input is the buffered data that DL-RS1A periodically retrieves from the sensor amplifiers. Therefore, the latest data detected by the sensors can only be read after T2 (DL-RS1A data processing time) where DL-RS1A retrieves data from the sensor amplifiers. Time Frames of Communication Response Time This section describes the communication time frames (T2 to T6).
Communication Response Time Communication Response Time ■ T4 (DL-RS1A command processing time) ■ T5 (Response send time from DL-RS1A) The processing time varies according to the command sent from the external device.
Specifications Specifications Performance Specifications Dimensions The following table shows the performance specifications for DL-RS1A. Item Current consumption Number of connectable sensor amplifiers Ambient temperature Relative humidity Vibration Environmental Material Weight Accessories 22.5 Varies depending on the model* 2 communication status indicators (green), alarm indicator (red), power indicator (green) Indicators 43.8 37.
Problem Cause ASCII Code Table Action Power is not Make sure that the voltage of the power supplied to the supplied. sensor amplifier main unit is 20 to 30 VDC. DL-RS1A is not The power indicator (POWER) properly inserted to Reconnect the unit following the instructions in "Connecting does not light up. the expansion the Unit to Sensor Amplifiers" (page 3). connector of the sensor amplifier.
WARRANTIES AND DISCLAIMERS Revision History Date of printing Version February 2010 First edition February 2011 First revision Revision contents Released for each model. (1) KEYENCE warrants the Products to be free of defects in materials and workmanship for a period of one (1) year from the date of shipment.
2in1_fd-mh_um_e.book 1 ページ ２０１１年２月１５日 火曜日 午後２時５分 Specifications are subject to change without notice.
