J-3623-3 115 VAC High Power Output Module
Contents
1. 19 20 20 02 61 8L 1 91 Sl bl El CL IL OL 6 8 29 6 v C 1 E oo D 3 Appendix E Defining Variables in the Configuration Task Local 1 O Definition This section describes how to configure the output module when it is located in the same rack i e the local rack as the processor module that is referencing it Refer to the figure below Note that this procedure is used only if you are using the AutoMax Programming Executive software version 2 1 or earlier Processor Module mn E 275W POWER SUPPLY N gt e 8 3 5 ooo leo oso O POWER ON P S READY SYSTEM READY BLOWN FUSE NORMAL e a Te Je 9 Te I J To 9 Te I J To To2. 2 la Ja o 2 ls o Jo a 3 o Jg IN Jo Ja J gt o Jo 2 Jo gt 9 Q 2 8 g Module Module in a Local Rack E 1 E 2 Single Register Reference Use the following method to reference all 16 outputs as a single register Only one statement is required in the configuration task for the entire module The symbolic name of the register should be as meaningful as possible nnnnn IODEF SYMBOLIC_NAME SLOT s REGISTER 0 Bit Reference Use the following method to reference individual outputs on the module For the entire module a maximum of 16 statements can be i
3. RELIANCE ELECTRIC Figure 2 2 Module Faceplate 2 2 3 0 3 1 3 2 INSTALLATION This section describes how to install and remove the module and its cable assembly Wiring The installation of wiring should conform to all applicable codes To reduce the possibility of electrical noise interfering with the proper operation of the control system exercise care when installing the wiring from the system to the external devices For detailed recommendations refer to IEEE 518 Initial Installation Use the following procedure to install the module Step 1 Turn off power to the system All power to the rack as well as all power to the wiring leading to the module should be off Step 2 Mount the terminal strip M N 57C370 61 505 or 61C506 on a panel The terminal strip should be mounted to permit easy access to the screw terminals on the terminal strip Make certain that the terminal strip 15 close enough to the rack so that the cable will reach between the terminal strip and the module Fasten field wires to the terminal strip Note that the bit number and wire number are not the same Typical field signal connections are shown in figure 3 1 Refer to Appendix C for the arrangement of terminal strip connections Make certain that all field wires are securely fastened 3 1 ale 115 VAC SOLENOID N VALVE
4. CONTACTOR SOLENOID VALVE IN N OUT Figure 3 1 Typical Field Signal Connections Step 4 If the device to which you are connecting the output module contains an inductive load install an RC suppression network across the output terminals of the device If this is not done the output module may not always function correctly Refer to figure 3 2 3 2 NY ae 2200 ohms Figure 3 2 RC Suppression Network for Inductive Loads Step 5 the module out of its shipping container Take it out of the anti static bag being careful not to touch the connectors on the back of the module Step 6 Insert the module into the desired slot the rack Use a screwdriver to secure the module into the slot Refer to figure 3 3 zer 16 Slot Rack Zar 10 Slot Rack Figure 3 3 Rack Slot Numbers Step7 Attach the field terminal connector M N 57C370 61 505 or 61C506 to the mating half on the module Make certain that the connector is the proper one for this module Use a screwdriver to secure the connector to the module Note that both the module and the terminal strip connector are equipped with keys These keys should be used to prevent the wrong cable from being plugged into a module in the event that the connector needs to be removed for any reason
5. 1801 SWITCH lt 10 DATA 13 49 BUFFER 14 Switch lt 15 EU D os OUTPUT SWITCH lt 13 p 5V lt lt 12V 2 Amor 12 OUTPUT SWITCH lt 13 13 O Qururre 13 SWITCH lt So OuTPUTT 44 SWITCH lt VJs e 15 OUTPUT Switch lt 2 Appendix C Field Connections Appendix D Related Components 57C370 Terminal Strip Cable Assembly This assembly consists of a NEMA style terminal strip cable and mating connector It is used to connect field signals to the faceplate of the output module 8 S e o e 8 8 6 e e e e e 00 Appendix D Continued 61C505 DIN Style Terminal Strip Cable Assembly Fused This assembly consists of a DIN style terminal strip with fuses cable and mating connector It
6. 3 3 Figure 3 3 Rack Slot Numbers 3 3 Figure 4 1 Organization of Register Bits 4 1 Module in a Eocal Hack ie st eA p E 1 Module in a Remote Rack 2 0 4 ree eter RE E 3 1 0 INTRODUCTION The products described in this instruction manual are manufactured or distributed by Reliance Electric Company or its subsidiaries This 115 VAC High Power Output Module will drive a maximum of sixteen 115 volt control signals as outputs from the DCS 5000 AutoMax system The output signal frequency may be either 50 or 60 hertz Individual outputs are rated at a maximum current of 2 amps Outputs have high inrush capacity for handling capacitive loads Output signals have 2500 volt isolation to logic common The module contains four isolated commons each having four outputs Typically this module is used to output on off signals to devices such as solenoids or motor starters that may need up to 2 amps current or have a large inrush current requirement This manual describes the functions and specifications of the module It also includes a detailed overview of installation and servicing procedures as well as examples of programming methods Related publications that may be of interest J 3630 ReSource AutoMax PROGRAMMING EXECUTIVE INSTRUCTION MANUAL VERSION 1 0 e J 3649 AutoMax CONFIGURATION TASK MANUAL e J 3650 AutoMax PROCESSOR MODULE INSTRU
7. I O Slave r Remote I O Master LLLILLIII d Remote I O Slave x o 2 Y s gt Processor Module a OO UDALA 4 OO Remote Slave WERE Module in aRemote Rack E 3 E 4 Single Register Reference Use the following method to reference all 16 outputs as a single register Only one statement is required in the configuration task for the entire module The symbolic name of the register should be as meaningful as possible nnnnn RIODEF SYMBOLIC_NAME MASTER_SLOT m DROP d SLOT s REGISTER 0 Bit Reference For the entire module a maximum of 16 statements can be included in the configuration task one for each bit The symbolic name of each bit should be as meaningful as possible nnnnn RIODEF SYMBOLIC_NAME MASTER_SLOT m DROP d SLOT s REGISTER 0 BIT b where nnnnn BASIC statement number This number may range from 1 32767 SYMBOLIC_NAME A symbolic name c
8. The software allows you to define the module as a single register up to 16 bits by referencing the entire module as a unit or as up to 16 individual bits by referencing each of the bits separately Refer to figure 4 1 15 14 13 12 11 10 98 7 6 54 3 2 1 0 register O RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW Figure 4 1 Organization of Register Bits 4 2 Configuration Before any application programs can be written it is necessary to configure or set the definitions of system wide variables i e those that must be globally accessible to all tasks For DCS 5000 and AutoMax Version 2 1 and earlier you define system wide variables by writing a Configuration task For AutoMax Version 3 0 and later you define system wide variables using the AutoMax Programming Executive After these variables are defined you can generate the configuration file automatically which eliminates the requirement to write a configuration task for the rack If you are using AutoMax Version 2 1 or earlier refer to Appendix E for examples that show how to define variables in the configuration task If you are using AutoMax Version 3 0 or later see the AutoMax Programming Executive J 3750 for information about configuring variables 4 3 Reading And Writing Data In Application Tasks In order for an output module to be referenced by application software it is first necessary to assign symbolic names to the physical hard
9. and then reattached later At the time of installation rotate the keys on the module and the connector so that they can be connected together securely It is recommended that for each module so equipped the keys on each successive module in the 3 3 rack be rotated one position to the right of the keys on the preceding module If you use this method the keys on a particular connector will be positioned in such a way as to fit together only with a specific module and there will be little chance of the wrong connector being attached to a module Step 8 on power to the system Step 9 Verify the installation by connecting the programming terminal to the system and running the ReSource Software Stop all programs that may be running Use the I O MONITOR function If the module is in a local rack enter the module slot number and register always 0 If the module is in a remote rack enter the slot number of the master remote module remote drop number also called the remote rack number output module slot number and register always 0 One at a time toggle each of the bits that have been wired to output devices to verify that the installation has been completed correctly WARNING BE CAREFUL WHEN WRITING TO THE OUTPUTS TO INSURE THAT NO UNEXPECTED MACHINE MOTION WILL RESULT FAILURE TO OBSERVE THIS PRECAUTION COULD RESULT IN BODILY INJURY OR DAMAGE TO EQUIPMENT 3 3 Module Replacement Use th
10. is used to connect field signals to the faceplate of the output module a LI O n PN O HO O ANN 1 1 BERN gt a Ze QM soem M Tor TO 5 Ad N _t HH NN 7 ES ehe OT 10 11 m 12 O p 14 15 16 gt 17 amp 119 gt T 20H IM OOT 3 o _ MN STAN 3 o D 2 Appendix D Continued 61C506 DIN Style Terminal Strip Cable Assembly Unfused This assembly consists of a DIN style terminal strip with fuses cable and mating connector It is used to connect field signals to the faceplate of the output module n 9
11. of the remote backplane except the slave remote I O module and the output module If the problem is now corrected one of the other modules in the rack is malfunctioning Reconnect the other modules one at a time until the problem reappears If the problem proves to be neither in the remote I O system nor the remote rack try replacing the remote backplane Bus Error Problem A 31 or 51 through 58 appears on the processor module s LED This error message indicates that there was a bus error when the system attempted to access the module The possible causes of this error are a missing module a module in the wrong slot or a malfunctioning module It is also possible that the user has attempted to write to the wrong registers on the module Refer to the AutoMax Procesor Module Instruction Manual J 3650 for more information Use the following procedure to isolate a bus error Step 1 Step 2 Verify that the output module is in the correct slot and that the I O definitions are correct Refer to figure 3 2 Verify that the slot number being referenced agrees with the slot number defined in the configuration task Verify that the register number is 0 Note that the bit number and the wire number are not the same For remote I O installations also verify that the master slot and remote drop number are defined correctly Verify that the module can be accessed Connect the programming terminal to the system a
12. 115 VAC High Power Output Module M N 57C403 Instruction Manual J 3623 3 ae ELECTRIC ELI The information in this user s manual is subject to change without notice WARNING THIS UNIT AND ITS ASSOCIATED EQUIPMENT MUST BE INSTALLED ADJUSTED AND MAINTAINED BY QUALIFIED PERSONNEL WHO ARE FAMILIAR WITH THE CONSTRUCTION AND OPERATION OF ALL EQUIPMENT IN THE SYSTEM AND THE POTENTIAL HAZARDS INVOLVED FAILURE TO OBSERVE THESE PRECAUTIONS COULD RESULT IN BODILY INJURY WARNING INSERTING OR REMOVING THIS MODULE OR ITS CONNECTING CABLES MAY RESULT IN UNEXPECTED MACHINE MOTION POWER TO THE MACHINE SHOULD BE TURNED OFF BEFORE INSERTING OR REMOVING THE MODULE OR ITS CONNECTING CABLES FAILURE TO OBSERVE THESE PRECAUTIONS COULD RESULT IN BODILY INJURY CAUTION THIS MODULE CONTAINS STATIC SENSITIVE COMPONENTS CARELESS HANDLING CAN CAUSE SEVERE DAMAGE DO NOT TOUCH THE CONNECTORS ON THE BACK OF THE MODULE WHEN NOT IN USE THE MODULE SHOULD BE STORED IN AN ANTI STATIC BAG THE PLASTIC COVER SHOULD NOT BE REMOVED FAILURE TO OBSERVE THIS PRECAUTION COULD RESULT IN DEMAGE TO OR DESTRUCTION OF THIS EQUIPMENT Reliance is a trademark of Reliance Electric Company or its subsidiaries 1 0 2 0 3 0 4 0 5 0 Table of Contents Introduction 1 1 Mechanical Electrical Description 2 1 2 1 Mechanical Description 2 1 2 2 Electrical Description 2
13. 5 eere ee eme er eene 2 1 Installation en a Rain SR C 3 1 31 ssexiee d Rr rn 3 1 3 2 Initial Installation ic mnm ae 3 1 3 3 Module 3 4 Programming zu iso ii rra a a an ii enit 4 1 4 1 Register Organization 4 1 4 2 Configuration 4 1 4 3 Reading And Writing Data In Application Tasks 4 1 4 3 1 Ladder Logic Task Example 4 2 4 3 2 BASIC Task Example 4 2 4 3 3 Control Block Task Example 4 2 Diagnostics and Troubleshooting 5 1 Sul Ineorrect Dala command 5 1 9 2 BUSIENON cats aa oda DR donada 5 2 Appendices Appendix A Technical Specifications corista cr daa A 1 Appendix B Module Block Diagram 52x rr en a en a B 1 Appendix C Field ie C 1 Appendix D Related Components ns era qed D 1 Appendix E Defining Variables in the Configuration Task E 1 List of Figures Figure 2 1 Typical Output Circuit 2 1 Figure 2 2 Module Faceplate 2 2 Figure 3 1 Typical Field Signal Connections 3 2 Figure 3 2 RC Suppression Network for Inductive Loads
14. CTION MANUAL e J 3675 ENHANCED BASIC LANGUAGE INSTRUCTION MANUAL e J 3676 CONTROL BLOCK LANGUAGE INSTRUCTION MANUAL e 3677 LADDER LOGIC LANGUAGE INSTRUCTION MANUAL J 3684 ReSource AutoMax PROGRAMMING EXECUTIVE INSTRUCTION MANUAL VERSION 2 0 e J 3750 ReSource AutoMax PROGRAMMING EXECUTIVE INSTRUCTION MANUAL VERSION 3 0 e 518 GUIDE FOR THE INSTALLATION OF ELECTRICAL EQUIPMENT TO MINIMIZE ELECTRICAL NOISE INPUTS TO CONTROLLERS FROM EXTERNAL SOURCES 1 1 2 0 2 1 2 2 MECHANICAL ELECTRICAL DESCRIPTION The following is a description of the faceplate LEDs field termination connectors and electrical characteristics of the field connections Mechanical Description The output module a printed circuit board assembly that plugs into the backplane of the DCS 5000 AutoMax rack It consists of a printed circuit board a faceplate and a protective enclosure The faceplate contains tabs atthe top and bottom to simplify removing the module from the rack Module dimensions are listed in Appendix A The faceplate of the module contains a female connector socket and 16 LED indicators that show the status of the outputs Output signals leave the module via a multi conductor cable 57C370 One end of this cable attaches to the faceplate connector while the other end ofthe cable has stake on connectors that attach to a terminal strip for easy field wiring The fa
15. ation 1 Allen Bradley Drive Mayfield Heights Ohio 44124 USA Tel 800 241 2886 or 440 646 3599 http www reliance com automax www rockwellautomation com Corporate Headquarters Rockwell Automation 777 East Wisconsin Avenue Suite 1400 Milwaukee WI 53202 5302 USA Tel 1 414 212 5200 Fax 1 414 212 5201 Headquarters for Allen Bradley Products Rockwell Software Products and Global Manufacturing Solutions Americas Rockwell Automation 1201 South Second Street Milwaukee WI 53204 2496 USA Tel 1 414 382 2000 Fax 1 414 382 4444 Europe Middle East Africa Rockwell Automation SA NV Vorstlaan Boulevard du Souverain 36 1170 Brussels Belgium Tel 32 2 663 0600 Fax 32 2 663 0640 Asia Pacific Rockwell Automation 27 F Citicorp Centre 18 Whitfield Road Causeway Bay Hong Kong Tel 852 2887 4788 Fax 852 2508 1846 Headquarters for Dodge and Reliance Electric Products Americas Rockwell Automation 6040 Ponders Court Greenville SC 29615 4617 USA Tel 1 864 297 4800 Fax 1 864 281 2433 Europe Middle East Africa Rockwell Automation Br hlstra e 22 D 74834 Elztal Dallau Germany Tel 49 6261 9410 Fax 49 6261 17741 Asia Pacific Rockwell Automation 55 Newton Road 11 01 02 Revenue House Singapore 307987 Tel 65 6356 9077 Fax 65 6356 9011 Publication J 3623 3 July 1993 Copyright O 2002 Rockwell Automation Inc All rights reserved Printed in U S A
16. ceplate connector socket and cable plug are keyed to prevent the cable from being plugged into the wrong module On the back of the module are two edge connectors that attach to the system backplane Electrical Description The output module contains 16 output circuits for 115 volt control signals Each group of four circuits shares a single isolated common Output signals have 2500 volt isolation to logic common Refer to the block diagram in Appendix B Each output circuit consists of a Triac with RC and MOV transient supression The Triac gate driver is optically isolated from the output buffer A circuit diagram is shown in figure 2 1 RECTIFIER ISOLATOR FROM OUTPUT y ary OUTPUT BUFFER Figure 2 1 Typical Output Circuit There are 16 LEDs on the faceplate of the module The LEDs are arranged in the same order as the output terminals on the faceplate They are numbered sequentially from zero through fifteen corresponding to the bits in the register The LED indicators display 2 1 the status of the logic level circuitry A lit LED indicates that data has been written to the output See figure 2 2 115V HIGH OUTPUT 57C403 dos ons ano
17. d does not have I O associated with it 4 3 3 Control Block Task Example 2400 COMMON STARTPL Start command 2500 LOCAL MOMENTARY Momentary output 3000 4000 5000 CALL TRANSITION INPUT MOMENTARY OUTPUT STARTPL 5500 6000 END The symbolic name STARTPL references the output module that was defined in the configuration The symbolic name MOMENTARY is local to the control block task and does not have associated with it 4 2 5 0 DIAGNOSTICS AND TROUBLESHOOTING This section explains how to troubleshoot the module and field connections 5 1 Incorrect Data Problem The device connected to theoutput is either always off always on or acting different than expected The possible causes of this are a module in the wrong slot a programming error or a malfunctioning module It is also possible that the output is either not wired or wired to the wrong device Use the following procedure to isolate the problem Step 1 Verify that the output module is in the correct slot and that the definitions are correct Refer to figure 3 2 Verify that the slot number being referenced agrees with the slot number defined in the configuration Verify that the register number is 0 Verify that the bit number refers to the proper bit Note that the bit number and the wire number are not the same For remote installations also verify that the master slot and remote drop number are defined correctly Step 2 Ve
18. e following procedure to replace a module Step 1 Turn off power to the rack and all connections Step 2 Use a screwdriver loosen the screws holding the connector to the module Remove the connector Step 3 Loosen the screws holding the module to the rack Remove the module from the slot in the rack Step 4 Place the module in the anti static bag it came in being careful not to touch the connectors on the back of the module Place the module in the cardboard shipping container Step 5 the new module out of the anti static bag being careful not to touch the connectors on the back of the module Step 6 Insert the module into the desired slot in the rack Use a screwdriver to secure the module into the slot Step 7 Attach the field terminal connector M N 570370 610505 or 61C506 to the mating half on the module Make certain that the connector keys are oriented correctly and that the connector is the proper one for this module see step 7 in 3 2 Initial Installation Use a screwdriver to secure the connector to the module Step 8 Turn on power to the rack 3 4 4 0 PROGRAMMING This section describes how data is organized in the module and provides examples of how the module is accessed by the application software For more detailed information refer to the AutoMax Enhanced BASIC Language Instruction Manual J 3675 4 1 Register Organization The data in the module is organized as one 16 bit register
19. hosen by the user and ending with 96 This indicates an integer data type and all references will access the entire module SYMBOLIC_NAME A symbolic name chosen by the user and ending with This indicates a boolean data type and all references will access bit number b only MASTER_SLOT Slot number that the master remote I O module is plugged into This number may range from 0 15 DROP Drop number of the slave remote I O module that is the same rack as the input module This number may range from 1 7 SLOT Slot number that the module is plugged into This number may range from 0 15 REGISTER Always zero for this module BIT Used with boolean data types only Specifies the bit in the register that is being referenced This number may range from 0 15 Examples Of Remote 1 0 Definitions The following statement assigns the symbolic name LEVEL to the output module located in slot 4 of remote I O drop 3 This remote drop is connected to the remote I O system whose master is located in slot 15 in the master rack 1020 RIODEF LEVEL MASTER_SLOT 15 DROP 3 SLOT 4 REGISTER 0 The following statement assigns the symbolic name STARTPL to bit 9 on the output module located in slot 7 of remote I O drop 2 This remote drop is connected to the re mote I O system whose master is located in slot 6 in the master rack 2050 RIODEF STARTPL MASTER_SLOT 6 DROP 2 SLOT 7 REGISTER 0 BIT 9 For additional inform
20. ncluded in the configuration task one for each bit The symbolic name of each bit should be as meaningful as possible nnnnn IODEF SYMBOLIC_NAME SLOT s REGISTER r BIT b where nnnnn BASIC statement number This number may range from 1 32767 SYMBOLIC_NAME A symbolic name chosen by the user and ending with This indicates an integer data type and all references will access the entire module SYMBOLIC_NAME A symbolic name chosen by the user and ending with This indicates a boolean data type and all references will access bit number b only SLOT Slot number that the module is plugged into This number may range from 0 15 REGISTER Always zero for this module Used with boolean data types only Specifies the bit in the register that is being referenced This number may range from 0 15 Examples Of Local I O Definitions The following statement assigns the symbolic name DISPLAY to the output module located in slot 4 1020 IODEF DISPLAY SLOT 4 REGISTER 0 The following statement assigns the symbolic name RUN to bit 9 on the output module located in slot 7 2050 IODEF RUN SLOT 7 REGISTER 0 BIT 9 Remote Definition This section describes how to configure the output module when it is located in a rack that is remote from the processor module referencing it Refer to the figure below 9 CAAA TT Module Remote
21. nd run the ReSource Software Stop all programs that may be running Use the I O MONITOR function to display register 0 the programmer is able to monitor the outputs then attempt to write to the outputs WARNING BE CAREFUL WHEN WRITING TO THE OUTPUTS TO INSURE THAT NO UNEXPECTED MACHINE MOTION WILL RESULT FAILURE TO OBSERVE THIS PRECAUTION COULD RESULT IN BODILY INJURY OR DAMAGE TO EQUIPMENT Step 3 If the programmer cannot read and write to the outputs the problem lies in the hardware Verify that the hardware is working correctly Verify the hardware functionality by systematically swapping out the output module the processor module s and the backplane After each swap if the problem is not corrected replace the original item before swapping out the next item For remote I O installations systematically swap out the output module the slave remote module and the backplane After each swap if the problem is not corrected replace the original item before swapping out the next item 5 3 Appendix A Technical Specifications Ambient Conditions e Storage temperature 40 C 85 C e Operating temperature 0 C 60 C e Humidity 5 90 non condensing Maximum Module Power Dissipation 30 Watts Dimensions e Height 11 75 inches e Width 1 25 inches e Depth 7 375 inches System Power Requirements e 5 volts 1200 ma Output Circuit e Number of outputs 16 e Maximum operating voltage 132 v
22. olts rms On state voltage drop 1 5 volts at 2 amps e Peak Current for 20 msec 20 amps e Maximum inrush 1 sec 5 amps e Maximum continuous current 2 amps per output 4 amps per common 16 amps per module e Maximum leakage current 4 ma e Maximum Fuse rating 5 amps per common e Four inputs per isolated common e 2500 volt isolation between outputs and logic common A 1 Appendix B Module Block Diagram 115 HIGH OUTPUT MODULE 57C403 ADDRESS ID BUS BUS gt ADDRESS ADDRESS DRESS DECODER QUTPUT i SWITCH lt 1 Form 1 O QUTPUT 206 SWITCH lt 2 2 BD RESET 1S0L OUTPUT INITIALIZE lt CONTROL 3 BYTE LOGIC 180 WRITE a READ XFER 4 4 O OUTPUT SWITCH lt GATE OUTPUT 2 Bir SWITCH lt GATEY 186 QUTPUT lt INPUT 21 2 so 7 Fa 501 lt lt pa L2 s OUTPUT 7 8 lt BUS BUFFER 582 GUIBUT Ma GATE gt switch w 9 10 9 ai QUTPUT GUTRUT d
23. rify that the power supply is functional Stop all tasks that may be running Confirm that all connections at the terminal strip are tight Connect a voltmeter to the power supply connections on the terminal strip If the voltage is not correct there is problem with the power supply or the wiring to the terminal strip Check the cable for continuity between the faceplate connector and the terminal strip Step 3 Verify that the module can be accessed Connect the programming terminal to the system and run the ReSource Software Stop all tasks that may be running Use the I O MONITOR function Toggle the output device and determine whether the bit is changing state by observing the condition of the LED on the module If the LED does not change state the hardware is malfunctioning WARNING BE CAREFUL WHEN WRITING TO THE OUTPUTS TO INSURE THAT NO UNEXPECTED MACHINE MOTION WILL RESULT FAILURE TO OBSERVE THIS PRECAUTION COULD RESULT IN BODILY INJURY OR DAMAGE TO EQUIPMENT Step 4 Verify that the output circuit on the module is working correctly 5 1 5 2 5 2 Step 5 Step 6 Connect a voltmeter to the proper points on the terminal strip and continue to toggle the output device from the I O MONITOR The voltmeter should alternate between O and the line voltage If this does not happen the output circuit is malfunctioning Verify that the user application program is correct Verify that the application program
24. that references the symbolic names associated with the module has declared those names COMMON Verify that the symbolic name in question is being referenced in the application program This can be done indirectly with the VARIABLE MONITOR in the programmer Verify that the hardware is working correctly Verify the hardware functionality by systematically swapping out modules After each swap if the problem is not corrected replace the original module before swapping out the next module To test local 1 O first replace the output module Next replace the processor module s If the problem persists take all of the modules out of the backplane except one processor module and the output module If the problem is now corrected one of the other modules in the rack is malfunctioning Reconnect the other modules one at a time until the problem reappears If none of these tests reveals the problem replace the backplane e To test remote l O first verify that the remote I O system is communicating with the drop that contains the output module being tested Next by systematically swapping out modules determine whether the output module is the only module that is not working If more than one module is not working correctly the problem most likely lies in the remote I O system To test the remote rack first replace the output module Next replace the slave remote I O module If the problem persists take all of the modules out
25. ware In AutoMax Version 2 1 and earlier this is accomplished by either IODEF or RIODEF statements in the configuration task In AutoMax Version 3 0 and later you assign symbolic names using the Programming Executive Each application program that references the symbolic names assigned to the module in configuration must declare those names COMMON The frequency with which tasks or application programs read their inputs and write their outputs depends on the language being used 4 1 Ladder logic and control block tasks read inputs once at the beginning of each scan and write outputs once at the end of each scan BASIC tasks read an input and write an output for each reference throughout the scan 4 3 1 Ladder Logic Task Example light STARTPL RUN 1050 RUN The symbolic names RUN and STARTPL reference the output modules that were defined in the configuration The trailing at symbol is not used in ladder logic tasks The symbolic name light is local to the ladder logic task and does not have associated with it 4 3 2 BASIC Task Example 1000 LOCAL LIGHT light 1010 COMMON STARTPLO Start Command 2000 COMMON RUN Line run 3000 4000 5000 RUN NOT LIGHT AND STARTPL OR RUNO 5500 6000 END The symbolic names STARTPL reference the output modules that were defined in the configuration The symbolic name LIGHT local to the BASIC task an
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