三菱终端接口模块AJ71C21用户手册.pdf三菱终端接口模块AJ71C21用户手册pdf,Th

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详细说明：三菱终端接口模块AJ71C21用户手册pdf,This manual decribes the specifications and handling of the AJ71C21 terminal interface module and the AJ71C21-S1 terminal interface module.DESIGN PRECAUTIONS] DANGER Install a safety circuit external to the Pc that keeps the entire system safe even when there are problems with the extemal power supply or the Pc module. Otherwise, trouble could result from erroneous output or erroneous operation (1)Outside the PC, construct mechanical damage preventing interlock circuits such as emergency stop protective circuits, positioning upper and lower limits switches and interlocking forward /reverse operations 2) When the PC detects the following problems, it will stop calculation and turn off all output The power supply module has over current protection equipment and over voltage protection equipment The PC CPUs self-diagnostic functions, such as the watchdog timer error, detect problems. In addition, all output will be turned on when there are problems that the Pc CPU cannot detect, such as in the lo controller Build a fail safe circuit exterior to the PC that will make sure the equipment operates safely at such times. See Section 8.1 of this user's manual for example fail safe circuits See this user's manual for example fail safe circuits (3 )Output could be left on or off when there is trouble in the outputs module relay or transistor. So build an external monitoring circuit that will monitor any single outputs that could cause serious trouble. When overcurrent which exceeds the rating or caused by short-circuited load flows in the output module for a long time, it may cause smoke or fire To prevent this, configure an external safety circuit, such as fuse Build a circuit that turns on the external power supply when the Pc main module power is turned on. If the external power supply is turned on first, it could result in erroneous output or erroneous operation When there are communication problems with the data link, the communication problem station ill enter the following condition Build an interlock circuit into the Pc program that will make sure the system operates safely by using the communication state information Not doing so could result in erroneous output or erroneous operation (1)For the data link data, the data prior to the communication error will be held (2) The MELSECNET(IL, /B, / 10)remote WO station will turn all output off (3)The MELSECNET/MINI-S3 remote WO station will hold the output or turn all output off depending on the E.C. remote setting Refer to the data link manuals regarding the method for setting the communication problem station and the operation status when there are communication problem When configuring a system, do not leave any slots vacant on the base. Should there be any vacant slots, always use a blank cover(A1SG60)or dummy module(A1SG62 When the extension base A1S52B, A1S55B or A1 S58B is used, attach the dustproof cover supplied with the product to the module installed in slot 0 If the cover is not attached the module's intemal parts may be dispersed when a short-circuit test is performed or overcurrentovervoltage is accidentally applied to the external t/O area △ CAUTION Do not bunch the control wires or communication cables with the main circuit or power wires, or install them close to each other they should be installed 100 mm(3.94 inch) or more from each other not doing so could result in noise that would cause erroneous operation. DESIGN PRECAUTIONST △ CAUTION When controlling items like lamp load, heater or solenoid valve using an output module, large current (approximately ten times greater than that present in nomal circumstances) may flow when the output is turned OFF-ON. Take measures such as replacing the module with one having sufficient rated current [INSTALLATION PRECAUTIONSI 个 DANGER Use the PC in an environment that meets the general specifications contained in this manual Using this Pc in an environment outside the range of the general specifications could result in electric shock, fire, erroneous operation, and damage to or deterioration of the product Install so that the pegs on the bottom of the module fit securely into the base unit peg holes and use the specified torque to tighten the module's fixing screws. Not installing the module correctly could result in erroneous operation, damage, or pieces of the product falling Tightening the screws too far may cause damages to the screws and/or the module, resulting in fallout, short circuits or malfunction . When installing more cables, be sure that the base unit and the module connectors are installed correctly. After installation check them for looseness. poor connections could result in erroneous Input and erroneous output Correctly connect the memory cassette installation connector to the memory cassette. After installation, be sure that the connection is not loose. a poor connection could result in erroneous operation e Do not directly touch the module's conductive parts or electronic components. Doing so could cause erroneous operation or damage of the module [WIRING PRECAUTIONS] ◇ DANGER Completely turn off the external power supply when installing or placing wiring. Not completely turning off all power could result in electric shock or damage to the product. When turning on the power supply or operating the module after installation or wiring work, be sure that the module's terminal covers are correctly attached not attaching the teminal cover could result in electric shock CAUTION Be sure to ground the FG terminals and LG teminals to the protective ground conductor. Not doing so could result in electric shock or erroneous operation When wiring in the PC, be aure that it is done correctly by checking the product's rated voltage and the terminal layout. Connecting a power supply that is different from the rating or incorrectly wiring the product could result in fire or damage [WIRING PRECAUTIONS △ CAUTION Do not connect multiple power supply modules in parallel Doing so could cause overheating fire or damage to the power supply module. If the terminal screws are too tight, it may cause falling, short circuit or erroneous operation due to damage of the screws or module Tighten the terminal screws with the specified torque. If the teminal screws are loose, it could result in short circuits, fire, or erroneous operation. Tightening the terminal screws too far may cause damages to the screws and/or the module resulting in fallout, short circuits, or malfunction Be sure there are no foreign substances such as sawdust or wiring debris inside the module Such debris could cause fires, damage, or erroneous operation Extemal connections shall be crimped or pressure welded with the specified tools, or correctly soldered. For information regarding the crimping and pressure welding tools, see the vo module's user's manual Imperfect connections could result in short circuit, fires, or erroneous operation STARTUP AND MAINTENANCE PRECAUTIONS DANGER do not touch the terminals while power is on. Doing so could cause shock or erroneous operation Correctly connect the battery. Also, do not charge, disassemble, heat, place in fire, short circuit, or solder the battery. Mishandling of battery can cause overheating or cracks which could result in injury and fires Switch all phases of the external power supply off when cleaning the module or tightening the terminal screws. Not doing so could result in electric shock. If the screws are too tight, it may cause falling, short circuit or erroneous operation due to damage of the screws or modules Tightening the screws too far may cause damages to the screws and/or the module, resulting In fallout. short clrcults, or malfunction △ CAUTION The online operations conducted for the CPU module being operated, connecting the peripheral device (especially, when changing data or operation status), shall be conducted after the manual has been carefully read and a sufficient check of safety has been conducted Operation rrlistakes could cause damage or trouble of the module Do not disassemble or modify the modules. Doing so could cause trouble, erroneous operation, injury, or fire Switch all phases of the external power supply off before mounting or removing the module. If ou do not switch off the external power supply it will cause failure or malfunction of the module [DISPOSAL PRECAUTIONS] △ CAUTION When disposing of this product, treat It as Industrlal waste REVISIONS %The manual number is given on the bottom left of the back cover. Print date Manual Number Revision Ju,1989|B{NA)66198A First edition INTRODUCTION Thank you for choosing the Mitsubishi MELSEC-A Series of General Purpose Programmable Controllers. Please read this manual carefully so that the equipment is used to its optimum a copy of this manual should be forwarded to the end User BA)66193A 1. GENERAL DESCRIPTION SYSTEM CONFIGURATION 3. SPECIFICATIONS 4.SETTINGS AND PROCEDURES REQUIRED FOR OPERATION 5. BASIC PROGRAM MODE 6. SEQUENCE PROGRAM MODE 7, TROUBLESHOOTING APPENDICES CONTENTS 1. GENERAL DESCRIPTION… 1-1~1-2 1.1 Features 12 2 SYSTEM CONFIGURATION 2-1~2-11 2.1 Overall Configuration ∴……………………………2 2.2 Application Systems 24 2.3 Example of System Configuration with the A3MCPU …………2-5 231 BASIC program mode… 2-5 2.3.2 Sequence program mode 甲B ……………2-7 2.3.3 BASIC program mode and Sequence program mode 2-8 24 Example of System Configuration with PC CPU…………………2-9 25 Components… 2-10 3. SPECIFICAT|ONs… ·::.····.4··.············.·.···4·.··· 3-1~3-10 3.1 General Specifications ………3-1 32 Performance specifications……… .b‘·a·b由·b·‘b·44tb·4·.. 3-2 3.3 Specifications …3-3 3. 3. 1 RS-232C connector specifications …………………………………3-3 3.3.2 RS-422 connector specifications..,.. ………3-6 3.4 Function List 3.5∥ O for PC cPu…… ●,● ···.·击命·.····.. 3-8 36 Buffer Memory… 3-10 4. SETTINGS AND PROCEDURES REQUIRED FOR OPERATION 4-1~4-14 4.1 Settings and Procedures Required for Operation …………………………………41 42 Handling Precautions…… …………4-2 4.3 Nomenclature………… 4-3 43.1 Nomenclature .:.·· …4-3 432 LEd display…………… 4. 4 Switch Settings. …45 4.4.1 I/F mode setting …………………………45 4. 4.2 Program mode and rs-232C/RS-422 terminal settings ………47 4.4.3 RS-232C/RS-422 communication mode setting a.:·· ………4-8 4.5 Test mode… 4 4.5.1 Individual station loopback test ………………………………49 4.5.2 RAM check 4-11 46 Wiring connections…………4-12 4.6.1 Wiring precautions…… r=== …4-12 4.6.2 RS-232C connector connections …………………4-12 4.6.3 RS-422 connections ………4-13 4.7 Inspection and Maintenance ………………4-14 47.1 Battery replacement (for the AJ71c21-S1only)………………414 B(A)66198A 5.BAS| C PROGRAM MODE…………………………… 5. 1 The BAsiC Console 5.2 General-Purpose Port 5-1 5.3 File o (for the AJ71C21-S1 only).... 6. SEQUENCE PROGRAM MODE……… ····:· ………6-1~628 6.1 Communication with External Equipment in the No Protocol Mode ……6-1 6.1.1 Basics in no protocol mode..,.... 6 6.1.2 Buffer memory…… 61.3 Program creation precautions…………… …64 6.1.4 Handshake 1/O signals 64 6.1.5 Error led display status read 一早甲甲 6.1.6 Error led off ···““······· 6-6 6.1.7 Word/byte specification 6.1.8 Send buffer memory area setting…… ……………68 6.1.9 Receive buffer memory area setting…………69 6.1.10 Receive end data number(fixed length setting..,.... ……6-10 6.1.11 Receive end code setting………… 6-11 6.1.12 Send in no protocol mode(AJ71C21-+computer 6-12 6.1.13 Receive in no protocol mode( external equipment→AJ71C21)………6-15 62 Data Read/write( Only for the aj71c21-S1}…………… 6-21 6.2.1 Data read/write ……………6-21 6.2.2 /0 handshake signals- -- 6-22 6.2.3 RAM write…… …………6-23 62.4 RAM reac……………………………………………… 6-25 6.2.5 RAM error read and c|ear………… 看·着 6-27 6.2.6 Memory data backup 6-27 7. TROUBLESHOOTING……………………………………… 7-1~7-8 7.1 Troubleshooting in BASIC Program Mode 7-1 7.1.1 Troubleshooting flowchart……………… 7-1 7.1.2 CrT display faulty 7-2 7.2 Troubleshooting in Sequence Program Mode …7-3 7.2.1 Troubleshooting during communication with external equipment in no protocol mode……………………………… 7.2.2 RAM write/read error …7-8 APPENDICES …………………APP1~APP4 APPENDIX 1 Comparison in Function between the AJ71C21 and the Aj71c24S3 Computer Link Module)……… ………∴∴∴APP-1 APPENDIX 2 ASCIl Code Table …………………………APP-2 APPENDIX 3 Display Control Code List …………APP3 APPENDIX4 Dimensions……… 中· APP-4 5 INA EC198-4

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