MicroLogix 1200 Programmable Controllers Bulletin 1762 Controllers and Expansion I/O User Manual
Important User Information Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls publication SGI-1.1 available from your local Rockwell Automation sales office or online at http://www.literature.rockwellautomation.com describes some important differences between solid state equipment and hard-wired electromechanical devices.
Summary of Changes To help you find new and updated information in this release of the manual, we have included change bars as shown to the right of this paragraph. Firmware Revision History 1 Features are added to the controllers through firmware upgrades. See the latest release notes, 1762-RN001, to be sure that your controller’s firmware is at the level you need. Firmware upgrades are not required, except to allow you access to the new features.
Summary of Changes 2 Notes: Publication 1762-UM001G-EN-P - March 2011
Table of Contents Summary of Changes Table of Contents Preface Important User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Firmware Revision History . . . . . . . . . . . . . . . . Summary of Changes-1 Who Should Use This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Purpose of This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Related Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents ii DIN Rail Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1762 Expansion I/O Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . Mount 1762 Expansion I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DIN Rail Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mount on Panel . . . . . . . .
Table of Contents iii Connect the AIC+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cable Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recommended User-supplied Components. . . . . . . . . . . . . . . . Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Install and Attach the AIC+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . Apply Power to the AIC+. . . . . . . . . . . . . . . . . . . . .
Table of Contents iv Critical and Noncritical Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5 Module Error Definition Table. . . . . . . . . . . . . . . . . . . . . . . . . . . C-5 Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-7 Call Rockwell Automation for Assistance. . . . . . . . . . . . . . . . . . . . . . C-8 Appendix D Use Control Flash to Upgrade Your Prepare for Upgrade. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface Read this preface to familiarize yourself with the rest of the manual. It provides information concerning: • • • • Who Should Use This Manual who should use this manual the purpose of this manual related documentation conventions used in this manual Use this manual if you are responsible for designing, installing, programming, or troubleshooting control systems that use MicroLogix 1200 controllers. You should have a basic understanding of electrical circuitry and familiarity with relay logic.
P-2 Preface Related Documentation The following documents contain additional information concerning Rockwell Automation products. To obtain a copy, contact your local Rockwell Automation office or distributor. Resource Description MicroLogix 1200 and 1500 Programmable Controllers Instruction Set Reference Manual, publication 1762-RM001 Information on the MicroLogix 1200 Controllers instruction set.
Chapter 1 Hardware Overview Hardware Features The Bulletin 1762, MicroLogix 1200 programmable controller contains a power supply, input and output circuits, and a processor. The controller is available in 24 I/O and 40 I/O configurations. Figure 1.1 Hardware Features of the Controller Top View Side View 7 6 10 8 2 0 1 5 12 COM 3 9 4 7 11 1 Table 1.1 Hardware Features Feature Description Feature Description 1 Terminal Blocks (Removable Terminal Blocks on 40-point controllers only.
1-2 Hardware Overview Table 1.
Hardware Overview 1-3 1762 Expansion I/O 1762 expansion I/O can be connected to the MicroLogix 1200 controller, as shown below. 1762 Expansion I/O TIP 1762 Expansion I/O Connected to MicroLogix 1200 Controller A maximum of six I/O modules, in certain combinations, may be connected to a controller. See Appendix F, System Loading and Heat Dissipation, to determine valid combinations. Table 1.
1-4 Hardware Overview Communication Cables Use only the following communication cables with the MicroLogix 1200 controllers. • • • • • • • • 1761-CBL-PM02 series C or later 1761-CBL-HM02 series C or later 1761-CBL-AM00 series C or later 1761-CBL-AP00 series C or later 2707-NC8 series A or later 2702-NC9 series B or later 2707-NC10 series B or later 2707-NC11 series B or later Program the Controller You program the MicroLogix 1200 programmable controller using RSLogix 500, revision 4 or later.
Chapter 2 Install Your Controller This chapter shows you how to install your controller.
2-2 Install Your Controller Compliance to European Union Directives This product has the CE mark and is approved for installation within the European Union and EEA regions. It has been designed and tested to meet the following directives.
Install Your Controller ATTENTION ATTENTION Safety Considerations 2-3 Vertical mounting of the controller is not recommended due to heat build-up considerations. Be careful of metal chips when drilling mounting holes for your controller or other equipment within the enclosure or panel. Drilled fragments that fall into the controller or I/O modules could cause damage. Do not drill holes above a mounted controller if the protective debris shields are removed or the processor is installed.
2-4 Install Your Controller Use only the following communication cables in Class I, Division 2 hazardous locations.
Install Your Controller 2-5 Power Distribution There are some points about power distribution that you should know: • The master control relay must be able to inhibit all machine motion by removing power to the machine I/O devices when the relay is de-energized. It is recommended that the controller remain powered even when the master control relay is de-energized. • If you are using a dc power supply, interrupt the load side rather than the ac line power.
2-6 Install Your Controller Power Supply Inrush During power-up, the MicroLogix 1200 power supply allows a brief inrush current to charge internal capacitors. Many power lines and control transformers can supply inrush current for a brief time. If the power source cannot supply this inrush current, the source voltage may sag momentarily. The only effect of limited inrush current and voltage sag on the MicroLogix 1200 is that the power supply capacitors charge more slowly.
Install Your Controller 2-7 Other Types of Line Conditions Occasionally the power source to the system can be temporarily interrupted. It is also possible that the voltage level may drop substantially below the normal line voltage range for a period of time. Both of these conditions are considered to be a loss of power for the system. Prevent Excessive Heat For most applications, normal convective cooling keeps the controller within the specified operating range.
2-8 Install Your Controller Master Control Relay A hard-wired master control relay (MCR) provides a reliable means for emergency machine shutdown. Since the master control relay allows the placement of several emergency-stop switches in different locations, its installation is important from a safety standpoint. Overtravel limit switches or mushroom-head push buttons are wired in series so that when any of them opens, the master control relay is de-energized.
Install Your Controller TIP 2-9 Do not control the master control relay with the controller. Provide the operator with the safety of a direct connection between an emergency-stop switch and the master control relay. Use Emergency-Stop Switches When using emergency-stop switches, adhere to the following points: • Do not program emergency-stop switches in the controller program. Any emergency-stop switch should turn off all machine power by turning off the master control relay.
2-10 Install Your Controller Schematic (Using IEC Symbols) L1 L2 230V ac Disconnect MCR Fuse 230V ac I/O Circuits Isolation Transformer X1 115V ac or 230V ac Operation of either of these contacts will remove power from the external I/O circuits, stopping machine motion. X2 Emergency-Stop Push Button Overtravel Limit Switch Fuse Stop Start Master Control Relay (MCR) Cat. No. 700-PK400A1 Suppressor Cat. No. 700-N24 MCR Suppr. MCR MCR 115V ac or 230V ac I/O Circuits dc Power Supply.
Install Your Controller 2-11 Schematic (Using ANSI/CSA Symbols) L1 230V ac L2 Disconnect MCR Fuse Isolation Transformer X1 115V ac or X2 230V ac Fuse Operation of either of these contacts will remove power from the external I/O circuits, stopping machine motion. Emergency-Stop Push Button Overtravel Limit Switch 230V ac Output Circuits Master Control Relay (MCR) Cat. No. 700-PK400A1 Suppressor Cat. No. 700-N24 Start Stop MCR Suppr. MCR MCR dc Power Supply. Use NEC Class 2 for UL Listing.
2-12 Install Your Controller Install a Memory Module or Real-time Clock 1. Remove the memory module port cover. 2. Align the connector on the memory module with the connector pins on the controller. 3. Firmly seat the memory module into the controller.
Install Your Controller 2-13 Controller Mounting Dimensions C C A A B B 1762-L40AWA, 1762-L40BWA, 1762-L40BXB 1762-L40AWAR, 1762-L40BWAR, 1762-L40BXBR 1762-L24AWA, 1762-L24BWA, 1762-L24BXB 1762-L24AWAR, 1762-L24BWAR, 1762-L24BXBR Table 2.1 Controller Dimensions Dimension 1762-L24AWA 1762-L24AWAR 1762-L24BWA 1762-L24BXB 1762-L24BWAR 1762-L24BXBR 1762-L40AWA 1762-L40BWA 1762-L40AWAR 1762-L40BWAR A 90 mm (3.5 in.) 90 mm (3.5 in.) B 110 mm (4.33 in.) 160 mm (6.30 in.) C 87 mm (3.43 in.
2-14 Install Your Controller Mount the Controller MicroLogix 1200 controllers are suitable for use in an industrial environment when installed in accordance with these instructions. Specifically, this equipment is intended for use in clean, dry environments (Pollution degree 2(1)) and to circuits not exceeding Over Voltage Category II(2) (IEC 60664-1).
Install Your Controller 2-15 DIN Rail Mounting The maximum extension of the latch is 14 mm (0.55 in.) in the open position. A flat-blade screwdriver is required for removal of the controller. The controller can be mounted to EN50022-35x7.5 or EN50022-35x15 DIN rails. DIN rail mounting dimensions are shown below. 27.5 mm (1.08 in.) 90 mm (3.5 in.) 27.5 mm (1.08 in.) To install your controller on the DIN rail: 1. Mount your DIN rail.
2-16 Install Your Controller open closed Panel Mounting Mount to panel using #8 or M4 screws. To install your controller using mounting screws: 1. Remove the mounting template from inside the back cover of the MicroLogix 1200 Programmable Controllers Installation Instructions, publication 1762-IN006. 2. Secure the template to the mounting surface. (Make sure your controller is spaced properly. See Controller and Expansion I/O Spacing on page 2-13.) 3. Drill holes through the template. 4.
Install Your Controller 2-17 1762 Expansion I/O Dimensions A C B Dimension Mount 1762 Expansion I/O Expansion I/O Module A 90 mm (3.5 in.) B 40 mm (1.57 in.) C 87 mm (3.43 in.) ATTENTION During panel or DIN rail mounting of all devices, be sure that all debris (metal chips, wire stands) is kept from falling into the module. Debris that falls into the module could cause damage when the module is under power. DIN Rail Mounting The module can be mounted using the following DIN rails: • 35 x 7.
2-18 Install Your Controller Use DIN rail end anchors (Allen-Bradley part number 1492-EA35 or 1492-EAH35) for vibration or shock environments. The following illustration shows the location of the end anchors. End Anchor End Anchor TIP TIP 1762 expansion I/O must be mounted horizontally as illustrated. For environments with greater vibration and shock concerns, use the panel mounting method described below, instead of DIN rail mounting.
Install Your Controller Connect Expansion I/O 2-19 The expansion I/O module is attached to the controller or another I/O module by means of a flat ribbon cable after mounting, as shown below. Pull Loop TIP TIP ATTENTION Use the pull loop on the connector to disconnect modules. Do not pull on the ribbon cable. Up to six expansion I/O modules can be connected to a controller depending upon the power supply loading. Remove power before removing or inserting an I/O module.
2-20 Install Your Controller WARNING EXPLOSION HAZARD In Class I, Division 2 applications, the bus connector must be fully seated and the bus connector cover must be snapped in place. In Class I, Division 2 applications, all modules must be mounted in direct contact with each other as shown on page 2-19. If DIN rail mounting is used, an end stop must be installed ahead of the controller and after the last 1762 I/O module.
Chapter 3 Wire Your Controller This chapter describes how to wire your controller and expansion I/O. Topics include: • • • • • • • wire requirements using surge suppressors grounding the controller wiring diagrams sinking and sourcing wiring diagrams controller I/O wiring expansion I/O wiring Wire Requirements ATTENTION ATTENTION Before you install and wire any device, disconnect power to the controller system. Calculate the maximum possible current in each power and common wire.
3-2 Wire Your Controller TIP Do not run signal or communication wiring and power wiring in the same conduit. Wires with different signal characteristics should be routed by separate paths. • Separate wiring by signal type. Bundle wiring with similar electrical characteristics together. • Separate input wiring from output wiring. • Label wiring to all devices in the system. Use tape, shrink-tubing, or other dependable means for labeling purposes.
Wire Your Controller 3-3 Wire with Spade Lugs The diameter of the terminal screw head is 5.5 mm (0.220 in.). The input and output terminals of the MicroLogix 1200 controller are designed for a 6.35 mm (0.25 in.) wide spade (standard for #6 screw for up to 14 AWG) or a 4 mm (metric #4) fork terminal. When using spade lugs, use a small, flat-blade screwdriver to pry the finger-safe cover from the terminal blocks as shown below. Then loosen the terminal screw.
3-4 Wire Your Controller The following diagram shows an output with a suppression device. We recommend that you locate the suppression device as close as possible to the load device. +dc or L1 Suppression Device VAC/DC Out 0 Out 1 ac or dc Outputs Out 2 Out 3 Load Out 4 Out 5 Out 6 Out 7 COM dc COM or L2 If the outputs are dc, we recommend that you use an 1N4004 diode for surge suppression, as shown below. For inductive dc load devices, a diode is suitable.
Wire Your Controller 3-5 Recommended Surge Suppressors Use the Allen-Bradley surge suppressors shown in the following table for use with relays, contactors, and starters. Table 3.
3-6 Wire Your Controller Ground the Controller ATTENTION In solid-state control systems, grounding and wire routing helps limit the effects of noise due to electromagnetic interference (EMI). Run the ground connection from the ground screw of the controller to the ground bus prior to connecting any devices. Use AWG #14 wire. For AC-powered controllers, this connection must be made for safety purposes.
Wire Your Controller The following illustrations show the wiring diagrams for the MicroLogix 1200 controllers. Controllers with dc inputs can be wired as either sinking or sourcing inputs. (Sinking and sourcing does not apply to ac inputs.) Refer to Sinking and Sourcing Wiring Diagrams on page 3-12 The controller terminal block layouts are shown below. The shading on the labels indicates how the terminals are grouped. A detail of the groupings is shown in the table following the terminal block layouts.
3-8 Wire Your Controller Figure 3.2 1762-L24BWA and 1762-L24BWAR Group 0 IN 1 IN 3 IN 5 IN 4 IN 6 VAC VAC L1 NEUT OUT 0 OUT 1 OUT 2 VAC VAC DC 0 DC 1 IN 8 IN 10 IN 13 IN 12 VAC DC 3 OUT 5 OUT 6 OUT 8 VAC VAC OUT 7 OUT 9 OUT 3 OUT 4 DC 2 DC 4 3 up 2 up 1 G ro G ro up 0 up G ro IN 9 IN 11 G ro Outputs IN 7 4 24 COM COM 0 Group 1 COM 1 IN 2 up Inputs IN 0 G ro +24 VDC The 24V dc sensor supply of the 1762-L24BWA and 1762-L24BWAR should not be used to power output circuits.
Wire Your Controller 3-9 Figure 3.
3-10 Wire Your Controller Table 3.3 Input Terminal Grouping Controller 1762-L40BWA 1762-L40BWAR 1762-L40BXB 1762-L40BXBR Input Group Group 0 Group 1 Group 2 Group 0 Group 1 Group 2 Inputs Common Terminal DC COM 0 DC COM 1 DC COM 2 DC COM 0 DC COM 1 DC COM 2 Input Terminal I/0 through I/3 I/4 through I/7 I/8 through I/23 I/0 through I/3 I/4 through I/7 I/8 through I/23 Table 3.
Wire Your Controller 3-11 Table 3.
3-12 Wire Your Controller Sinking and Sourcing Wiring Diagrams Any of the MicroLogix 1200 DC embedded input groups can be configured as sinking or sourcing depending on how the DC COM is wired on the group. Refer to pages 3-13 through 3-17 for sinking and sourcing wiring diagrams. Type Definition Sinking Input The input energizes when high-level voltage is applied to the input terminal (active high). Connect the power supply VDC (-) to the input group’s COM terminal.
Wire Your Controller 3-13 Figure 3.8 1762-L24BWA and 1762-L24BWAR Sinking Input Wiring Diagram -DCb +DCa +DC +24 VDC +DCb IN 0 24 COM COM 0 IN 2 COM 1 IN 1 IN 3 IN 5 IN 4 IN 7 IN 6 IN 9 IN 8 IN 11 IN 10 IN 13 IN 12 +DCb -DC -DCa +DCa Figure 3.
3-14 Wire Your Controller Figure 3.10 1762-L24BXB and 1762-L24BXBR Sinking Input Wiring Diagram -DCb +DCa NOT USED IN 0 NOT COM 0 USED +DCb IN 2 COM 1 IN 1 IN 3 IN 5 IN 4 IN 7 IN 6 IN 9 IN 8 IN 11 IN 10 IN 13 IN 12 +DCb -DCa +DCa Figure 3.11 1762-L24BXB and 1762-L24BXBR Sourcing Input Wiring Diagram -DCa NOT USED 0 +DCb IN 2 NOT COM0 USED IN 1 +DCa -DCa -DCb IN 5 COM1 IN 3 IN 4 IN 7 IN 6 IN 9 IN 8 IN 11 IN 10 IN 13 IN 12 -DCb Figure 3.
Wire Your Controller 3-15 Figure 3.13 1762-L24BXB and 1762-L24BXBR Output Wiring Diagram -DCa -DCb +DC +24 VDC L1d -DCc L2d -DC OUT 0 VDC NEUT VAC DC 0 OUT 1 VAC DC 1 CR CR OUT 2 OUT 4 VDC 2 OUT 3 OUT 6 OUT 5 VAC DC 3 COM 2 CR +DCa +DCb +DCc OUT 8 OUT 7 OUT 9 CR L2d -DCc 1762-L40AWA, 1762-L40BWA, 1762-L40BXB, 1762-L40AWAR, 1762-L40BWAR and 1762-L40BXBR Wiring Diagrams Figure 3.
3-16 Wire Your Controller Figure 3.16 1762-L40BWA and 1762-L40BWAR Sourcing Input Wiring Diagram -DCb +DCb -DCa -DCc +DC +24 VDC 24 COM IN 0 COM 0 IN 1 -DC COM 1 IN 2 IN 3 IN 5 IN 4 -DCa IN 7 IN 6 IN 8 IN 10 COM 2 IN 9 -DCb IN 12 IN 11 IN 14 IN 13 IN 16 IN 15 IN 18 IN 17 IN 20 IN 19 IN 22 IN 21 IN 23 -DCc +DCa +DCc Figure 3.
Wire Your Controller 3-17 Figure 3.19 1762-L40AWA, 1762-L40BWA, 1762-L40AWAR, and 1762-L40BWAR Output Wiring Diagram L1d L2a L2b L1f L2d L2c L2f L2e L2 CR L1 VAC VAC L1 NEUT OUT 0 VAC DC 0 OUT 1 OUT 2 VAC DC 2 VAC DC 1 OUT 5 VAC DC 3 OUT 4 OUT 3 OUT 8 VAC DC 4 CR OUT 10 OUT 9 VAC DC 5 OUT OUT 12 14 CR CR L2f L2e L2d L1c OUT 15 OUT 13 OUT 11 CR L2c L1b OUT 7 OUT 6 CR L1a CR CR L1e Figure 3.
3-18 Wire Your Controller Expansion I/O Wiring The following sections show the discrete and analog expansion I/O wiring diagrams. Discrete Wiring Diagrams Figure 3.21 1762-IA8 Wiring Diagram L1 IN 0 IN 1 IN 2 IN 3 100/120V ac IN 4 IN 5 IN 6 IN 7 AC COM AC COM L2 Common connected internally. Figure 3.
Wire Your Controller 3-19 Figure 3.
3-20 Wire Your Controller Figure 3.24 1762-IQ32T Wiring Diagram 44920 Figure 3.
Wire Your Controller 3-21 Figure 3.26 1762-OB8 Wiring Diagram +DC +VDC CR OUT 0 CR OUT 2 OUT 1 CR OUT 3 CR OUT 4 OUT 5 CR OUT 6 CR OUT 7 24V dc (source) DC COM -DC Figure 3.
3-22 Wire Your Controller Figure 3.28 1762-OB32T Wiring Diagram 44925 Figure 3.
Wire Your Controller 3-23 Figure 3.30 1762-OW8 Wiring Diagram L1 VAC1 + VAC-VDC 1 OUT 0 CR L1 VAC2 + L2 DC2 COM OUT 1 CR OUT3 CR OUT 4 CR L2 DC1 COM OUT 2 VAC-VDC2 CR OUT 5 CR OUT 6 OUT 7 Figure 3.
3-24 Wire Your Controller Figure 3.32 1762-OX6I Wiring Diagram L1-0 L1 OR +DC OUT0 N.C. L1 OR +DC OUT0 N.O. CR OUT1 N.C. CR L1-1 OUT1 N.O. L2 OR -DC L1-2 L2 OR -DC L2 OR -DC CR L1 OR +DC OUT2 N.C. OUT2 N.O. L1 OR +DC L2 OR -DC CR L1 OR +DC L1-3 OUT3 N.C. OUT3 N.O. L1-4 OUT4 N.C. L1-5 CR L1 OR +DC OUT5 N.C. OUT5 N.O. Publication 1762-UM001G-EN-P - March 2011 CR OUT4 N.O.
Wire Your Controller 3-25 Figure 3.
3-26 Wire Your Controller 1762-IF2OF2 Input Type Selection Select the input type, current or voltage, using the switches located on the module’s circuit board and the input type/range selection bits in the Configuration Data File. Refer to MicroLogix 1200 and 1500 Programmable Controllers Instruction Set Reference Manual, publication number 1762-RM001. You can access the switches through the ventilation slots on the top of the module. Switch 1 controls channel 0; switch 2 controls channel 1.
Wire Your Controller 3-27 1762-IF2OF2 Wiring The following illustration shows the 1762-IF2OF2 analog expansion I/O terminal block. Figure 3.34 1762-IF2OF2 Terminal Block Layout IN 0 (+) IN 0 (-) IN 1 (+) IN 1 (-) V Out 0 I Out 0 V Out 1 I Out 1 COM Common connected internally. COM Figure 3.
3-28 Wire Your Controller Figure 3.36 Single-ended Sensor/Transmitter Types 2-Wire Transmitter Power + Supply(1)- Transmitter + Module - IN + IN COM 3-Wire Transmitter Transmitter Supply Signal Module Power + Supply(1)- IN + IN COM 4-Wire Transmitter Power + Supply(1)- Transmitter Supply Signal + - Module + - IN + IN COM (1) All power supplies rated N.E.C. Class 2.
Wire Your Controller 3-29 Figure 3.37 1762-IF4 Terminal Block Layout IN 0 (+) IN 0 (-) IN 1 (+) IN 1 (-) IN 2 (+) IN 2 (-) IN 3 (+) IN 3 (-) COM Commons internally connected. COM Figure 3.38 Differential Sensor Transmitter Types IN 0 (+) Analog Sensor IN 0 (-) IN 1 (+) IN 1 (-) IN 2 (+) IN 2 (-) IN 3 (+) IN 3 (-) COM COM TIP Grounding the cable shield at the module end only usually provides sufficient noise immunity.
3-30 Wire Your Controller Figure 3.39 Sensor/Transmitter Types 2-Wire Transmitter Power Transmitter + + - Module IN + Supply (1) - IN COM Transmitter 3-Wire Transmitter Supply Signal Power + Supply(1) - Module IN + IN COM 4-Wire Transmitter Transmitter Signal Supply Power + Supply(1) - + - + - Module IN + IN COM (1) All power supplies rated N.E.C. Class 2.
Wire Your Controller 3-31 1762-OF4 Wiring I out 0 Current Load I out 1 I out 2 I out 3 Voltage Load V out 0 V out 1 V out 2 V out 3 COM COM Publication 1762-UM001G-EN-P - March 2011
3-32 Wire Your Controller Notes: Publication 1762-UM001G-EN-P - March 2011
Chapter 4 Communication Connections Introduction This chapter describes how to communicate to your control system. The method you use and cabling required to connect your controller depends on what type of system you are employing. This chapter also describes how the controller establishes communication with the appropriate network.
4-2 Communication Connections The 1762-L24AWAR, 1762-L24BWAR, 1762-L24BXBR, 1762-L40AWAR, 1762-L40BWAR, and 1762-L40BXBR controllers are equipped with an additional RS-232 communication channel called the Programmer/HMI Port, which supports DH Full-duplex only. The controller cannot initiate messages through this port. It can only respond to messages sent to it. All communication parameters are fixed and cannot be changed by a user.
Communication Connections Use the Communications Toggle Push Button 4-3 The Communications toggle push button is located on the processor under the processor door (if installed), as shown below. Use the Communications toggle push button to change from the user-defined communication configuration to the default communications mode and back on Channel 0. The parameters of the Programmer/HMI Port are fixed at the default communications configuration.
4-4 Communication Connections Connect to the RS-232 Port There are two ways to connect the MicroLogix 1200 programmable controller to your personal computer using the DF1 protocol: using a point-to-point connection, or using a modem. Descriptions of these methods follow. ATTENTION All devices connected to the RS-232 channel must be referenced to controller ground, or be floating (not referenced to a potential other than ground).
Communication Connections 4-5 Make a DF1 Point-to-Point Connection You can connect the MicroLogix 1200 programmable controller to your personal computer using a serial cable (1761-CBL-PM02) from your personal computer’s serial port to the controller via Channel 0 and/or the Programmer/HMI Port (for 1762-LxxxxxR only). The recommended protocol for this configuration is DF1 Full-duplex.
4-6 Communication Connections Personal Computer Modem Cable (straight-through) MicroLogix 1200 Channel 0 Modem Protocol Options • DF1 Full-duplex protocol (to 1 controller) • DF1 Half-duplex protocol (to multiple controllers) • Modbus RTU Slave protocol Optical Isolator (recommended) TERM A B COM SHLD CHS GND TX TX TX PWR DC SOURCE CABLE Modem EXTERNAL We recommend using an AIC+, catalog number 1761-NET-AIC, as your optical isolator. See page 4-13 for specific AIC+ cabling information.
Communication Connections 4-7 Construct Your Own Modem Cable If you construct your own modem cable, the maximum cable length is 15.24 m (50 ft) with a 25-pin or 9-pin connector.
4-8 Communication Connections Connect to a DF1 Half-duplex Network Use the following diagram for DF1 Half-duplex Master-Slave protocol without hardware handshaking.
Communication Connections Connect to a DH-485 Network 4-9 The following illustration shows how to connect to a DH-485 network.
4-10 Communication Connections DH-485 Communication Cable The suggested DH-485 communication cable is either Belden #3106A or #9842. The cable is jacketed and shielded with one or two twisted-wire pairs and a drain wire. One pair provides a balanced signal line and one additional wire is used for a common reference line between all nodes on the network. The shield reduces the effect of electrostatic noise from the industrial environment on network communication.
Communication Connections 4-11 Single Cable Connection When connecting a single cable to the DH-485 connector, use the following diagram. 6 Termination 5A 4B 3 Common 2 Shield 1 Chassis Ground Orange with White Stripes White with Orange Stripes Shrink Tubing Recommended Blue (#3106A) or Blue with White Drain Wire Stripes (#9842) Multiple Cable Connection When connecting multiple cables to the DH-485 connector, use the following diagram. to Previous Device to Next Device Table 4.
4-12 Communication Connections Ground and Terminate the DH-485 Network Only one connector at the end of the link must have Terminals 1 and 2 jumpered together. This provides an earth ground connection for the shield of the communication cable. Both ends of the network must have Terminals 5 and 6 jumpered together, as shown below. This connects the termination impedance (of 120 ohm) that is built into each AIC+ as required by the DH-485 specification.
Communication Connections Item Description 1 Port 1 - DB-9 RS-232, DTE 2 Port 2 - mini-DIN 8 RS-232 DTE 3 Port 3 - RS-485 Phoenix plug 4 DC Power Source selector switch (cable = port 2 power source, external = external power source connected to item 5) 5 Terminals for external 24V dc power supply and chassis ground 4-13 For additional information on connecting the AIC+, refer to the Advanced Interface Converter (AIC+) User Manual, publication 1761-UM004.
4-14 Communication Connections Table 4.6 Cable Length Connections from to AIC+ External Power Supply Required(2) Power Selection Switch Settings 1761-CBL-AM00(1) 1761-CBL-HM02(1) 45 cm (17.7 in) 2m (6.5 ft) MicroLogix 1000, 1200, or 1500 port 2 no cable to port 2 on another AIC+ port 2 yes external (1) Series C or higher cables are required. (2) External power supply required unless the AIC+ is powered by the device connected to port 2, then the selection switch should be set to cable.
Communication Connections Cable Length Connections from to AIC+ External Power Supply Required(1) Power Selection Switch Setting(1) 1761-CBL-AS03 1761-CBL-AS09 3m (9.8 ft) 9.5m (31.17 ft) SLC 500 Fixed, SLC 5/01, SLC 5/02, and SLC 5/03 processors port 3 yes external PanelView 550 RJ45 port port 3 yes external 4-15 (1) External power supply required unless the AIC+ is powered by the device connected to port 2, then the selection switch should be set to cable.
4-16 Communication Connections 1761-CBL-AP00 or 1761-CBL-PM02 Port 1 DB-9 RS-232 7 1 2 8 3 4 9 5 6 Port 2 cable straight D connector 6 7 8 6 Port 3 RS-485 connector 5 4 3 5 3 4 1 2 2 1 Table 4.
Communication Connections 4-17 Safety Considerations This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or non-hazardous locations only. WARNING EXPLOSION HAZARD AIC+ must be operated from an external power source. This product must be installed in an enclosure. All cables connected to the product must remain in the enclosure or be protected by conduit or other means. See Safety Considerations on page 2-3 for additional information. Install and Attach the AIC+ 1.
4-18 Communication Connections Set the DC Power Source selector switch to EXTERNAL before connecting the power supply to the AIC+. The following illustration shows where to connect external power for the AIC+. Bottom View 24VDC DC NEUT CHS GND ATTENTION Always connect the CHS GND (chassis ground) terminal to the nearest earth ground. This connection must be made whether or not an external 24V dc supply is used.
Communication Connections DeviceNet Communications 4-19 You can connect a MicroLogix 1200 to a DeviceNet network using the DeviceNet Interface (DNI), catalog number 1761-NET-DNI. For additional information on using the DNI, refer to the DeviceNet Interface User Manual, publication 1761-6.5. The following figure shows the external wiring connections of the DNI. V– CAN_L NET SHIELD CAN_H V+ DeviceNet Node (Port 1) (Replacement connector part no.
4-20 Communication Connections Notes: Publication 1762-UM001G-EN-P - March 2011
Chapter 5 Use Trim Pots Trim Pot Operation The processor has two trimming potentiometers (trim pots) which allow modification of data within the controller. Adjustments to the trim pots change the value in the corresponding Trim Pot Information (TPI) register. The data value of each trim pot can be used throughout the control program as timer, counter, or analog presets depending upon the requirements of the application.
5-2 Use Trim Pots Trim Pot Information Function File The composition of the Trim Pot Information (TPI) Function File is described in the MicroLogix 1200 and 1500 Programmable Controllers Instruction Set Reference Manual, publication 1762-RM001. Error Conditions Error conditions of the TPI Function File are described in the MicroLogix 1200 and 1500 Programmable Controllers Instruction Set Reference Manual, publication 1762-RM001.
Chapter 6 Use Real-time Clock and Memory Modules TIP For more information on ‘Real-time Clock Function File’ and ‘Memory Module Information File’ refer to the MicroLogix 1200 and 1500 Programmable Controllers Instruction Set Reference Manual, publication 1762-RM001. Three modules with different levels of functionality are available for use with the MicroLogix 1200 controller.
6-2 Use Real-time Clock and Memory Modules The following table indicates the accuracy of the RTC for various temperatures. Table 6.1 RTC Accuracy Ambient Temperature Accuracy(1) 0 °C (+32 °F) +34 … -70 seconds/month +25 °C (+77 °F) +36 … -68 seconds/month +40 °C (+104 °F) +29 … -75 seconds/month +55 °C (+131 °F) -133 … -237 seconds/month (1) These numbers are maximum worst case values over a 31-day month.
Use Real-time Clock and Memory Modules ATTENTION Memory Module Operation 6-3 Operating with a low battery indication for more than 14 days may result in invalid RTC data unless power is on continuously. The memory module supports the following features: • • • • • User Program and Data Back-up User Program Compare Data File Download Protection Memory Module Write Protection Removal/Insertion Under Power ATTENTION Electrostatic discharge can damage the Memory Module.
6-4 Use Real-time Clock and Memory Modules Program Compare The memory module can also provide application security, allowing you to specify that if the program stored in the memory module does not match the program in the controller, the controller will not enter an executing (run or test) mode. To enable this feature, set the S:2/9 bit in the system status file.
Appendix A Specifications The 1762 specifications include: • Controller Specifications • Expansion I/O Specifications Controller Specifications Table A.1 General Attribute 1762L24AWA L24AWAR L24BWA L24BWAR L24BXB L24BXBR L40AWA L40AWAR L40BWA L40BWAR L40BXB L40BXBR Dimensions Height: 90 mm, 104 mm (with DIN latch open) Width: 110 mm Depth: 87 mm Height: 90 mm, 104 mm (with DIN latch open) Width: 160 mm Depth: 87 mm Shipping weight 0.9 kg (2.0 lbs) 1.1 kg (2.
A-2 Specifications Table A.1 General Attribute 1762L24AWA L24AWAR Shock Agency certification L24BWA L24BWAR L24BXB L24BXBR L40AWA L40AWAR L40BWA L40BWAR L40BXB L40BXBR Operating: 30G; 3 pulses each direction, each axis Relay Operation: 7G Non-Operating: 50G panel mounted (40G DIN Rail mounted); 3 pulses each direction, each axis • UL 508 • C-UL under CSA C22.2 no. 142 • Class I, Div. 2, Groups A, B, C, D (UL 1604, C-UL under CSA C22.2 no.
Specifications A-3 Table A.2 Input Specifications Attribute 1762-L24AWA 1762-L40AWA 1762-L24AWAR 1762-L40AWAR 1762-L24BWA, -L24BXB, -L40BWA, -L40BXB 1762-L24BWAR, -L24BXBR, -L40BWAR, -L40BXBR Off-state leakage current 2.5 mA max. 1.5 mA min. Nominal impedance 12 kΩ at 50 Hz 10 kΩ at 60 Hz 3.3 kΩ Inrush current (max.) at 120V ac 250 mA Not Applicable Inputs 0 through 3 Inputs 4 and higher 2.7 kΩ Table A.
A-4 Specifications Table A.4 BXB FET Output Specifications Attribute General Operation Power supply voltage 24V dc (-15%, +10%) High Speed Operation(1) (Output 2 Only) On-state voltage drop: • at maximum load current • 1V dc • Not Applicable • at maximum surge current • 2.5V dc • Not Applicable • maximum load • See graphs below. • 100 mA • minimum load • 1.0 mA • 10 mA • maximum leakage • 1.0 mA • 1.0 mA Current rating per point Maximum output current (temperature dependent): 2.
Specifications A-5 Table A.4 BXB FET Output Specifications Attribute General Operation High Speed Operation(1) (Output 2 Only) Surge current per point: • peak current • 4.0A • Not applicable • maximum surge duration • 10 ms • Not applicable • maximum rate of repetition at 30 °C (86 °F) • once every second • Not applicable • maximum rate of repetition at 55 °C (131 °F) • once every 2 seconds • Not applicable Turn-on time, max. 0.1 ms 6 µs Turn-off time, max. 1.
A-6 Specifications Table A.7 Normal DC Input Filter Settings (Inputs 4 and higher) Nominal Filter Setting (ms) ON Delay (ms) OFF Delay (ms) Maximum Frequency (Hz) 50% Duty Cycle Minimum Maximum Minimum Maximum 0.500 0.090 0.500 0.020 0.500 1.0 kHz 1.000 0.500 1.000 0.400 1.000 0.5 kHz 2.000 1.100 2.000 1.300 2.000 250 Hz 4.000 2.800 4.000 2.700 4.000 125 Hz 8.000(1) 5.800 8.000 5.300 8.000 63 Hz 16.000 11.000 16.000 10.000 16.
Specifications A-7 Table A.
A-8 Specifications Expansion I/O Specifications Discrete I/O Modules Table A.12 General Specifications Attribute Value Dimensions 90 mm (height) x 87 mm (depth) x 40.4 mm (width) height including mounting tabs is 110 mm 3.54 in. (height) x 3.43 in. (depth) x 1.59 in. (width) height including mounting tabs is 4.33 in.
Specifications A-9 Table A.
A-10 Specifications Table A.13 Input Specifications Attribute Value 1762-IA8 1762-IQ8 1762-IQ16 1762-IQ32T On-state current, min. 5.0 mA at 79V ac 47 Hz 2.0 mA at 10V dc 2.0 mA at 10V dc 1.6 mA at 10V dc 2.0 mA at 15V dc On-state current, nom. 12.0 mA at 120V ac 60 Hz 8.0 mA at 24V dc 8.0 mA at 24V dc - On-state current, max. 16.0 mA at 132V ac 63 Hz 12.0 mA at 30V dc 12.0 mA at 30V dc 5.7 mA at 26.4V dc 6.5 mA at 30.0V dc Inrush current, max.
Specifications A-11 Table A.14 Output Specifications Specification 1762-OA8 1762-OB8 1762-OB16 Bus current draw, max. 115 mA at 5V dc (0.575 W) 115 mA at 5V dc (0.575 W) 175 mA at 5V dc (0.88 W) 175 mA at 5V dc 0 mA at 24V dc Heat dissipation, max. 2.9 W 1.61 W 2.9 W at 30 °C (86 °F) 2.1 W at 55 °C (131 °F) 3.4 W at 26.4 dc Signal delay, max. – resistive load On delay: 1/2 cycle Off delay: 1/2 cycle On delay: 0.1 ms Off delay: 1.0 ms On delay: 0.1 ms Off delay: 1.0 ms On delay: 0.
A-12 Specifications Table A.14 Output Specifications Specification 1762-OA8 Vendor I.D. code 1 Product type code 7 Product code 119 1762-OB8 1762-OB16 1762-OB32T 101 103 100 Table A.15 Output Specifications Specification 1762-OV32T 1762-OW8 1762-OW16 1762-OX6I Shipping weight, approx. (with carton) 200 g (0.44 lbs.) 228 g (0.50 lbs.) 285 g (0.63 lbs.) 220 g (0.
Specifications A-13 Table A.15 Output Specifications Specification 1762-OV32T 1762-OW8 1762-OW16 1762-OX6I Isolated groups Group 1: Outputs 0…15 Group 1: Outputs 0 to 3 Group 2: Outputs 4 to 7 Group 1: Outputs 0 to 7 Group 2: Outputs 8 to 15 All 6 Outputs Individually Isolated.
A-14 Specifications Table A.17 Relay Contact Ratings 1762-OX6I Volts (max.) Continuous Amps per Point (max.)(2) Amperes(1) Voltamperes Make Break Make Break 240V ac 15 A 1.5 A 5.0 A 3600VA 360VA 120V ac 30 A 3.0 A 7.0 A(3) 125V dc 0.4 A 2.5 A 50VA(4) 24V dc 7.0 A 7.0 A(3) 168VA(4) (1) Surge Suppression – Connecting surge suppressors across your external inductive load will extend the life of the relay contacts.
Specifications A-15 Analog Modules Table A.19 Analog Modules Common Specifications Specification 1762-IF2OF2, 1762-IF4, 1762-IR4, 1762-IT4 and 1762-OF4 Dimensions 90 mm (height) x 87 mm (depth) x 40 mm (width), height including mounting tabs is 110 mm 3.54 in. (height) x 3.43 in. (depth) x 1.58 in. (width), height including mounting tabs is 4.33 in.
A-16 Specifications Table A.20 General Specifications for Analog Modules Specification 1762-IF2OF2 Shipping weight, approx. (with carton) 240 g (0.53 lbs.) Bus current draw, max. 40 mA at 5V dc 105 mA at 24V dc Analog normal operating range 1762-IF4 1762-OF4 1762-IR4 1762-IT4 235 g (0.517 lbs.) 260 g (0.57 lbs.) 220 g (0.53 lbs.
Specifications A-17 Table A.21 Input Specifications Specification 1762-IF2OF2 1762-IF4 1762-IR4 1762-IT4 Number of inputs 2 differential (unipolar) 4 differential (bipolar) 4 4 input channels plus 1 CJC sensor Update time (typical) 2.
A-18 Specifications Table A.22 Input Specifications 1762-IR4 Specification Input types 1762-IR4 • • • • • • • • • • • • • • • • 100 Ω Platinum 385 200 Ω Platinum 385 500 Ω Platinum 385 1000 Ω Platinum 385 100 Ω Platinum 3916 200 Ω Platinum 3916 500 Ω Platinum 3916 1000 Ω Platinum 3916 10 Ω Copper 426 120 Ω Nickel 672 120 Ω Nickel 618 604 Ω Nickel-Iron 518 0…150 Ω 0…500 Ω 0…1000 Ω 0…3000 Ω Heat dissipation 1.5 Total Watts (The Watts per point, plus the minimum Watts, with all points enabled.
Specifications A-19 Table A.23 Input Specifications 1762-IT4 Specification Value Heat dissipation 1.5 Total Watts (The Watts per point, plus the minimum Watts, with all points energized.) Response speed per channel Input filter and configuration dependent.
A-20 Specifications Table A.24 1762-IT4 Repeatability at 25°C (77°F)(1) (2) Input Type Repeatability for 10 Hz Filter Thermocouple J ±0.1 °C [±0.18 °F] Thermocouple N (-110…1300 °C [-166…2372 °F]) ±0.1 °C [±0.18 °F] Thermocouple N (-210…110 °C [-346…166 °F]) ±0.25 °C [±0.45 °F] Thermocouple T (-170…400 °C [-274…752 °F]) ±0.1 °C [±0.18 °F] Thermocouple T (-270…170 °C [-454…274 °F]) ±1.5 °C [±2.7 °F] Thermocouple K (-270…1370 °C [-454…2498 °F]) ±0.1 °C [±0.
Specifications A-21 Table A.25 1762-IT4 Accuracy With Autocalibration Enabled Input Type(1) Without Autocalibration Accuracy for 10 Hz, 50 Hz and 60 Hz Filters (max.) Maximum Temperature Drift(2) (4) at 25 °C [77 °F] Ambient at 0 to 60 °C [32 to 140 °F] Ambient at 0 to 60 °C [32 to 140 °F] Ambient Thermocouple J (-210…1200 °C [-346…2192 °F]) ±0.6 °C [±1.1 °F] ±0.9 °C [±1.7 °F] ±0.0218 °C/°C [±0.0218 °F/°F] Thermocouple N (-200…1300 °C [-328…2372 °F]) ±1 °C [±1.8 °F] ±1.5 °C [±2.7 °F] ±0.
A-22 Specifications Table A.26 Output Specifications Specification 1762-IF2OF2 1762-OF4 Number of outputs 2 single-ended (unipolar) 4 single-ended (unipolar)(2) Update time (typical) 4.5 ms D/A converter type Resistor string R-2R Ladder Voltage Switching Resistive load on current output 0…500 Ω (includes wire resistance) 0…500 Ω (includes wire resistance) Load range on voltage output > 1 kΩ > 1 kΩ Reactive load, current output < 0.1 mH < 0.
Specifications A-23 Combination Module DC-Input/Relay Output Table A.28 DC-Input/Relay-Output Combination Module - 1762-IQ80W6 Input Specifications Specification Value Voltage category 24V dc (Sink/Source)(1) Operating voltage range 10…30V dc @ 30 °C (86 °F) 10…26.4V dc @ 65 °C (149 °F) Number of inputs 8 On-state voltage, min. 10V dc Off-state voltage, max. 5V dc On-state current, min. 2.0 mA Off-state current, max. 1.5 mA Inrush current, max.
A-24 Specifications Table A.30 DC-Input/Relay-Output Combination Module - 1762-IQ80W6 Relay Contact Ratings Volts (max.) Continuous Amps per Point (Max.) Make Break Make Break 240V ac 2.5 A 7.5 A 0.75 A 1800VA 180VA 15 A 1.5 A Voltamperes Amperes(1) 120V ac 125V dc 1.0 A 0.22 A(2) 28VA(2) 24V dc 2.0 A 1.2 A 28VA(2) (1) Surge Suppression - Connecting surge suppressors across your external inductive load will extend the life of the relay contacts.
Specifications A-25 Table A.31 DC-Input/Relay-Output Combination Module - 1762-IQ80W6 General Specifications Specification Value Vendor ID code 1 Product type code 7 Product code 98 Table A.32 DC-Input/Relay-Output Combination Module - 1762-IQ80W6 Environmental Specifications Specification Value Temperature range, operating -20…+65 °C (-4…+149 °F) Temperature range, storage -40…+85 °C (-40…+185 °F) Operating humidity 5…95% non-condensing Operating altitude 2000 m (6561 ft) Table A.
A-26 Specifications Notes: Publication 1762-UM001G-EN-P - March 2011
Appendix B 1762 Replacement Parts MicroLogix 1200 RTB Replacement Kit The 40-point controller removable terminal blocks kit (catalog number 1762-RPLRTB40) consists of: • one 25-point double row terminal block • one 29-point double row terminal block (Both are terminal blocks for a 40-point controller.
B-2 1762 Replacement Parts Notes: Publication 1762-UM001G-EN-P - March 2011
Appendix C Troubleshoot Your System This chapter describes how to troubleshoot your controller. Topics include: • • • • Interpret LED Indicators understanding the controller LED status controller error recovery model analog expansion I/O diagnostics and troubleshooting calling Rockwell Automation for assistance The controller status LEDs provide a mechanism to determine the current status of the controller if a programming device is not present or available. Figure C.1 Controller LED Location Table C.
C-2 Troubleshoot Your System Normal Operation The POWER and RUN LEDs are on. If a force condition is active, the FORCE LED turns on and remains on until all forces are removed. Error Conditions If an error exists within the controller, the controller LEDs operate as described in the following table.
Troubleshoot Your System Controller Error Recovery Model Identify the error code and description. No C-3 Use the following error recovery model to help you diagnose software and hardware problems in the micro controller. The model provides common questions you might ask to help troubleshoot your system. Refer to the recommended pages within the model for further help. Is the error hardware related? Start Yes Refer to page C-2 for probable cause and recommended action.
C-4 Troubleshoot Your System Analog Expansion I/O Diagnostics and Troubleshooting Module Operation and Channel Operation The module performs operations at two levels: • module level • channel level Module-level operations include functions such as power-up, configuration, and communication with the controller. Internal diagnostics are performed at both levels of operation. Both module hardware and channel configuration error conditions are reported to the controller.
Troubleshoot Your System C-5 Critical and Noncritical Errors Noncritical module errors are recoverable. Channel errors (over-range or under-range errors) are noncritical. Noncritical error conditions are indicated in the module input data table. Noncritical configuration errors are indicated by the extended error code. See Table C.5 on page C-7. Critical module errors are conditions that prevent normal or recoverable operation of the system.
C-6 Troubleshoot Your System Module Error Field The purpose of the module error field is to classify module errors into three distinct groups, as described in the table below. The type of error determines what kind of information exists in the extended error information field. These types of module errors are typically reported in the controller’s I/O status file. Refer to the MicroLogix 1200 and 1500 Programmable Controllers Instruction Set Reference Manual, publication 1762-RM001 for more information. .
Troubleshoot Your System C-7 Error Codes Table C.
C-8 Troubleshoot Your System Call Rockwell Automation for Assistance If you need to contact Rockwell Automation or local distributor for assistance, it is helpful to obtain the following (prior to calling): • controller type, series letter, revision letter, and firmware (FRN) number of the controller • controller LED status • controller error codes (Refer to MicroLogix 1200 and 1500 Programmable Controllers Instruction Set Reference Manual, Publication 1762-RM001 for error code information.
Appendix D Use Control Flash to Upgrade Your Operating System The operating system (OS) can be upgraded through the communication port on the controller. In order to download a new operating system, you must have the following: • ControlFlash Upgrade Kit containing the new OS Go to http://www.ab.com/micrologix to download the upgrade kit. • a Windows 95, Windows 98, Windows 2000 or Windows NT based computer to run the download software.
D-2 Use Control Flash to Upgrade Your Operating System Prepare the Controller for Updating Controller Configuration The controller must be configured for default communications (use communications toggle push button; DCOMM LED on) and be in the Program mode to allow the download of a new operating system. Sequence of Operation The following steps detail the key events in the upgrade process. 1. Controller mode and communications parameters are checked. 2. Download begins. 3.
Appendix E Connect to Networks via RS-232 Interface The following protocols are supported from the RS-232 communication channel: • • • • • RS-232 Communication Interface DF1 Full-duplex DF1 Half-duplex DH-485 Modbus ASCII The communications port on the MicroLogix 1200 utilizes an RS-232 interface. RS-232 is an Electronics Industries Association (EIA) standard that specifies the electrical and mechanical characteristics for serial binary communication.
E-2 Connect to Networks via RS-232 Interface Example DF1 Full-duplex Connections For information about required network connecting equipment, see Chapter 4, Communication Connections.
Connect to Networks via RS-232 Interface E-3 Example DF1 Half-duplex Connections Rockwell Software RSLinx 2.0 (or higher), SLC 5/03, SLC 5/04, and SLC 5/05, or PLC-5 processors configured for DF1 Half-duplex Master.
E-4 Connect to Networks via RS-232 Interface • radio modems Radio modems may be implemented in a point-to-point topology supporting either Half-duplex or Full-duplex communications, or in a multi-drop topology supporting Half-duplex communications between three or more modems. MicroLogix 1200 also supports DF1 Radio Modem protocol.
Connect to Networks via RS-232 Interface DH-485 Communication Protocol E-5 The DH-485 protocol defines the communication between multiple devices that coexist on a single pair of wires. DH-485 protocol uses RS-485 Half-duplex as its physical interface. (RS-485 is a definition of electrical characteristics; it is not a protocol.) RS-485 uses devices that are capable of co-existing on a common data circuit, thus allowing data to be easily shared between devices.
E-6 Connect to Networks via RS-232 Interface Table E.1 Allen-Bradley Devices that Support DH-485 Communication Catalog Number 1747-DTAM, 2707-L8P1, -L8P2, -L40P1, -L40P2, -V40P1, -V40P2, -V40P2N, -M232P3, and -M485P3 2711-K5A2, -B5A2, -K5A5, -B5A5, -K5A1, -B5A1, -K9A2, -T9A2, -K9A5, -T9A5, -K9A1, and -T9A1 Description Installation Function Publication DTAM, DTAM Plus, and DTAM Micro Operator Interfaces Panel Mount Provides electronic operator interface for SLC 500 processors. 1747-6.
Connect to Networks via RS-232 Interface E-7 Number of Devices and Length of Communication Cable The maximum length of the communication cable is 1219 m (4000 ft). This is the total cable distance from the first node to the last node in a segment. However, two segments can be used to extend the DH-485 network to 2438 m (8000 ft). For additional information on connections using the AIC+, refer to the Advanced Interface Converter (AIC+) User Manual, publication 1761-UM004.
E-8 Connect to Networks via RS-232 Interface – Install the conduit so that it meets all applicable codes and environmental specifications. For more information on planning cable routes, see Industrial Automation Wiring and Grounding Guidelines, publication Number 1770-4.1. Software Considerations Software considerations include the configuration of the network and the parameters that can be set to the specific requirements of the network.
Connect to Networks via RS-232 Interface E-9 maximum node address of your controllers. It should be set to the highest node address being used. IMPORTANT All devices should be set to the same maximum node address. Example DH-485 Connections The following network diagrams provide examples of how to connect MicroLogix 1200 controllers to the DH-485 network using the Advanced Interface Converter (AIC+, catalog number 1761-NET-AIC).
E-10 Connect to Networks via RS-232 Interface Typical 3-Node Network PanelView 550 A-B PanelView MicroLogix 1200 1761-CBL-AM00 or 1761-CBL-HM02 RJ45 port AIC+ 1761-CBL-AS09 or 1761-CBL-AS03 TERM A B COM SHLD CHS GND TX TX TX PWR DC SOURCE CABLE EXTERNAL 1747-CP3 or 1761-CBL-AC00 This 3-node network is not expandable.
Connect to Networks via RS-232 Interface E-11 • The MicroLogix 1200 controllers can initiate MSG instructions to devices on the DH+ network. • PC can send read and write commands to MicroLogix 1200 controllers. • PC can do remote programming of MicroLogix 1200 controllers.
E-12 Connect to Networks via RS-232 Interface Modbus Communication Protocol Modbus is a Half-duplex, master-slave communications protocol. The Modbus network master reads and writes coils and registers. Modbus protocol allows a single master to communicate with a maximum of 247 slave devices. MicroLogix 1200 controllers support Modbus RTU Master and Modbus RTU Slave protocol.
Appendix F System Loading and Heat Dissipation System Loading Limitations When you connect MicroLogix accessories and expansion I/O, an electrical load is placed on the controller power supply. This section shows how to calculate the load and validate that the system will not exceed the capacity of the controller power supply. The following example is provided to illustrate system loading validation.
F-2 System Loading and Heat Dissipation Table F.
System Loading and Heat Dissipation F-3 Table F.3 Validating Systems Using 1762-L24AWA, 1762-L24BXB, 1762-L24AWAR or 1762-L24BXBR Maximum Allowable Values Calculated Values Current: Current (Subtotal 1 + Subtotal 2 from Table F.1 and Table F.2 on page F-2.): 400 mA at 5V dc 350 mA at 24V dc System Loading: 0 mA + 260 mA = 260 mA at 5V dc 120 mA + 180 mA = 300 mA at 24V dc System Loading: = (260 mA x 5V) + (300 mA x 24 V) = (1300 mW) + (7200 mW) = 8500 mW = 8.50 Watts 10.4 Watts Table F.
F-4 System Loading and Heat Dissipation System Loading Worksheet The tables below are provided for system loading validation for 24-point Controllers. See System Current Loading Example Calculations (24-point Controller) on page F-1. Current Loading Table F.
System Loading and Heat Dissipation F-5 Table F.7 Validating Systems using 1762-L24AWA, 1762-L24BXB, 1762-L24AWAR or 1762-L24BXBR Maximum Allowable Values Calculated Values Current: Current (Subtotal 1 from Table F.5 + Subtotal 2 from Table F.6.): 400 mA at 5V dc 350 mA at 24V dc System Loading: mA at 5V dc mA at 24V dc System Loading: = (________ mA x 5V) + (________ mA x 24V) = __________ mW + __________ mW = __________ mW = __________ W 10.4 Watts Table F.
F-6 System Loading and Heat Dissipation System Current Loading Example Calculations (40-point Controller) Table F.9 Calculating the Current for MicroLogix Accessories Catalog Number 1761-NET-AIC(1) when powered by the base unit communications port, selector switch in the up position Device Current Requirements Calculated Current at 5V dc (mA) at 24V dc (mA) at 5V dc (mA) at 24V dc (mA) 0 120 0 120 0 120 Subtotal 1: (1) This is an optional accessory.
System Loading and Heat Dissipation F-7 Validate the System The example systems shown in Table F.11 and Table F.12 are verified to be acceptable configurations. The systems are valid because: • Calculated Current Values < Maximum Allowable Current Values • Calculated System Loading < Maximum Allowable System Loading Table F.11 Validating Systems using 1762-L40AWA, 1762-L40BXB, 1762-L40AWAR or 1762-L40BXBR Maximum Allowable Values Calculated Values Current: Current (Subtotal 1 from Table F.
F-8 System Loading and Heat Dissipation System Loading Worksheet The tables below are provided for system loading validation for 40-point Controllers. See System Current Loading Example Calculations (40-point Controller) on page F-6. Current Loading Table F.
System Loading and Heat Dissipation F-9 Table F.14 Calculating the Current for Expansion I/O 1762-OX6I 110 110 1762-IQ8OW6 110 80 Total Modules (6 maximum): Subtotal 2: (1) Refer to your expansion I/O Installation Instructions for Current Requirements not listed in this table. (2) Only applicable to Series B I/O modules. Table F.
F-10 System Loading and Heat Dissipation Use the following table when you need to determine the heat dissipation of your system for installation in an enclosure. For System Loading, take the value from the appropriate system loading worksheets on pages F-4, F-5, F-8 or F-9: Calculating Heat Dissipation Table F.17 Heat Dissipation Catalog Number Heat Dissipation Equation or Constant Calculation 1762-L24AWA, -L24AWAR 15.2W + (0.4 x System Loading) 15.2W + (0.
Glossary The following terms are used throughout this manual. Refer to the Allen-Bradley Industrial Automation Glossary, Publication Number AG-7.1, for a complete guide to Allen-Bradley technical terms. address A character string that uniquely identifies a memory location. For example, I:1/0 is the memory address for the data located in the Input file location word1, bit 0. AIC+ Advanced Interface Converter A device that provides a communication link between various networked devices.
Glossary 2 controller A device, such as a programmable controller, used to monitor input devices and control output devices. controller overhead An internal portion of the operating cycle used for housekeeping and set-up purposes. control profile The means by which a controller determines which outputs turn on under what conditions. counter 1) An electro-mechanical relay-type device that counts the occurrence of some event.
Glossary 3 EMI Electromagnetic interference. encoder 1) A rotary device that transmits position information. 2) A device that transmits a fixed number of pulses for each revolution. executing mode Any run or test mode. expansion I/O Expansion I/O is I/O that is connected to the controller via a bus or cable. MicroLogix 1200 controllers use Bulletin 1762 expansion I/O. false The status of an instruction that does not provide a continuous logical path on a ladder rung.
Glossary 4 input device A device, such as a push button or a switch, that supplies signals to the input circuits of the controller. inrush current The temporary surge current produced when a device or circuit is initially energized. instruction A mnemonic and data address defining an operation to be performed by the processor. A rung in a program consists of a set of input and output instructions. The input instructions are evaluated by the controller as being true or false.
Glossary 5 low byte Bits 0 to 7 of a word. logic A process of solving complex problems through the repeated use of simple functions that can be either true or false. General term for digital circuits and programmed instructions to perform required decision making and computational functions. Master Control Relay (MCR) A mandatory hard-wired relay that can be de-energized by any series-connected emergency stop switch.
Glossary 6 switch is activated. In ladder programming, a symbol that allows logic continuity (flow) if the referenced input is logic “0” when evaluated. normally open Contacts on a relay or switch that are open when the relay is de-energized or the switch is deactivated. (They are closed when the relay is energized or the switch is activated.) In ladder programming, a symbol that allows logic continuity (flow) if the referenced input is logic “1” when evaluated.
Glossary 7 operating voltage For inputs, the voltage range needed for the input to be in the On state. For outputs, the allowable range of user-supplied voltage. output device A device, such as a pilot light or a motor starter coil, that is controlled by the controller. processor A Central Processing Unit. (See CPU.) processor file The set of program and data files used by the controller to control output devices. Only one processor file may be stored in the controller at a time.
Glossary 8 relay logic A representation of the program or other logic in a form normally used for relays. restore To download (transfer) a program from a personal computer to a controller. reserved bit A status file location that the user should not read or write to. retentive data Information associated with data files (timers, counters, inputs, and outputs) in a program that is preserved through power cycles.
Glossary 9 sinking A term used to describe current flow between an I/O device and controller I/O circuit — typically, a sinking device or circuit provides a path to ground, low, or negative side of power supply. sourcing A term used to describe current flow between an I/O device and controller I/O circuit — typically, a sourcing device or circuit provides a path to the source, high, or positive side of power supply. status The condition of a circuit or system, represented as logic 0 (OFF) or 1 (ON).
Glossary 10 Notes: Publication 1762-UM001G-EN-P - March 2011
Index Numerics 1762-24AWA wiring diagram 3-12 1762-40BWA sourcing wiring diagram 3-15 1762-IA8 wiring diagram 3-18 1762-IF2OF2 input type selection 3-26 output type selection 3-26 terminal block layout 3-27 wiring 3-27 1762-IF4 input type selection 3-28 terminal block layout 3-29 1762-IQ16 wiring diagram 3-19 1762-IQ32T wiring diagram 3-20 1762-IQ8 wiring diagram 3-18 1762-IQ80W6 wiring diagram 3-25 1762-OA8 wiring diagram 3-20 1762-OB16 wiring diagram 3-21 1762-OB32T wiring diagram 3-22 1762-OB8 wiring d
2 Index minimize electrical noise 3-17, 2-14, 2-15, 2-16, 2-13 prevent excessive heat 2-7 controller overhead G-2 controller spacing 2-13 counter G-2 CPU (Central Processing Unit) G-2 D data table G-2 default communication configuration 4-2 DeviceNet Communications 4-19 DeviceNet network connect 4-19 selecting cable 4-19 DF1 Full-Duplex protocol connect 4-4, 4-5 DF1 Full-duplex protocol description E-1 example system configuration E-2 use a modem 4-5, E-3 DF1 Half-Duplex protocol description E-2 DH48
Index install 4-10 isolation transformers power considerations 2-5 J jump G-4 L ladder logic G-4 least significant bit (LSB) G-4 LED (Light Emitting Diode) G-4 LIFO (Last-In-First-Out) G-4 logic G-5 low byte G-5 M manuals related P-2 master control relay 2-8 emergency-stop switches 2-9 using ANSI/CSA symbols schematic 2-11, 2-10 Master Control Relay (MCR) G-5 master control relay circuit periodic tests 2-5 memory module data file protection 6-4 operation 6-3 program compare 6-4, 6-3 removal/installati
4 Index disable 6-2 operation 6-1 removal/installation under power 6-1 write data 6-2 related documentation P-2 related publications P-2 relay G-7 relay logic G-8 relays surge suppressors for 3-5 remote packet support E-10 replacement parts B-1 reserved bit G-8 restore G-8 retentive data G-8 RS-232 G-8 RS-232 communication interface E-1 run mode G-8 rung G-8 S safety circuits 2-4 safety considerations 2-3 disconnect main power 2-4 hazardous location 2-3 master control relay circuit periodic tests 2-5 per
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