A1SJ71UC24-R4/A1SJ71C24-R4 Computer Link Module
Contents
1. In the explanation of the terminal resistor setting connection in this section when an RS 232C RS 422 converter or other equipment is used for the device which serves as either of the line terminating stations setting and wiring for a terminal resistor is required on the converter or the equipment The devices connected to the C24 s RS 422 RS485 interface must use all RS 422 or all RS 485 including 1 n and m n connections 13 6 External Dimensions 1 06 j 5 fg Alon Jae 6 a D r oe ee ne ey d Lt b Nines Y i 71 6 2 82 ole 23 34 5 1 36 65 93 6 3 69 0 87 0 26 unit mm inch R1 Bending radius near terminal block Cable diameter x 4 r4 Bending radius near crimp contact Can be connected ina range without extreme bend External dimensions of A1S71UC24 R4 and A1SJ71C24 R4 are the same The diagram above is of A1SJ71UC24 R4 external dimensions 14 Country Region Sales office Tel U S A Brazil Germany U K Italy Spain France South Africa Mitsubishi Electric Automation Inc 500 Corporate Woods Parkway Vernon Hills IL 60061 U S A Tel 1 847 478 2100 MELCO TEC Rep Com e Assessoria Tecnica Ltda Rua Correia Dias 184 Edificio Paraiso Trade Center 8 andar Paraiso Sao Paulo SP Brazil Tel 552. 11 5908 8331 Mitsubishi Electric Europe B V German Branch Gothaer Strasse 8 D 40880 Ratingen GERMANY Tel 49 2102 486 0 Mitsubishi Electric Europe B V UK Branch Travellers Lane Hatfield Hertfordshire AL10 8XB U K Tel 44 1707 276100 Mitsubishi Electric Europe B V Italian Branch Centro Dir Colleoni Pal Perseo Ingr 2 Via Paracelso 12 I 20041 Agrate Brianza Milano Italy Tel 39 039 60531 Mitsubishi Electric Europe B V Spanish Branch Carretera de Rubi 76 80 E 08190 Sant Cugat del Valles Barcelona Spain Tel 34 93 565 3131 Mitsubishi Electric Europe B V French Branch 25 Boulevard des Bouvets F 92741 Nanterre Cedex France TEL 33 1 5568 5568 Circuit Breaker Industries Ltd Private Bag 2016 ZA 1600 Isando South Africa Tel 27 11 928 2000 Country Region Sales office Tel Hong Kong China Taiwan Korea Singapore Thailand Indonesia India Australia Mitsubishi Electric Automation Hong Kong Ltd 10th Floor Manulife Tower 169 Electric Road North Point Hong Kong Tel 852 2887 8870 Mitsubishi Electric Automation Shanghai Ltd 4 F Zhi Fu Plazz No 80 Xin Chang Road Shanghai 200003 China Tel 86 21 6120 0808 Setsuyo Enterprise Co Ltd 6F No 105 Wu Kung 3rd Rd Wu Ku Hsiang Taipei Hsine Taiwan Tel 886 2 2299 2499 Mitsubishi Electric Automation Korea Co Ltd 1480 6 Gayang dong Gangseo ku Seoul 157 200 Korea Tel 82 2 36
3. 60 9552 Mitsubishi Electric Asia Pte Ltd 307 Alexandra Road 05 01 02 Mitsubishi Electric Building Singapore 159943 Tel 65 6470 2460 Mitsubishi Electric Automation Thailand Co Ltd Bang Chan Industrial Estate No 111 Moo 4 Serithai Rd T Kannayao A Kannayao Bangkok 10230 Thailand Tel 66 2 517 1326 P T Autoteknindo Sumber Makmur Muara Karang Selatan Block A Utara No 1 Kav No 11 Kawasan Industri Pergudangan Jakarta Utara 14440 P O Box 5045 Jakarta 11050 Indonesia Tel 62 21 6630833 Messung Systems Pvt Ltd Electronic Sadan NO III Unit No15 M I D C Bhosari Pune 411026 India Tel 91 20 2712 3130 Mitsubishi Electric Australia Pty Ltd 348 Victoria Road Rydalmere N S W 2116 Australia Tel 61 2 9684 7777 MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN NAGOYA WORKS 1 14 YAL NAMI 5 CHOME HIGASHI KU NAGOYA JAPAN When exported from Japan this manual does not require application to the Ministry of Economy Trade and Industry for service transac Specifications subject to change without notice Printed in Japan on recycled paper
4. MITSUBISHI A1SJ71UC24 R4 A1SJ71C24 R4 Computer Link Module MITSUBISHI General Purpose PROGRAMMABLE CONTROLLER User s Manual Hardware Thank you for buying the Mitsubishi general purpose programmable controller MELSEC A Series Prior to use please read this manual thoroughly and familiarize yourself with the product MODEL A1SJ71024 R4 H W U E MODEL CODE 13JE52 MELSEC IB NA 66491 D 0902 MEE 1998 MITSUBISHI ELECTRIC CORPORATION SAFETY PRECAUTIONS Read these precautions before using When using Mitsubishi equipment thoroughly read this manual and the associated manuals introduced in the manual Also pay careful attention to safety and handle the module properly These precautions apply only to Mitsubishi equipment Refer to the CPU module user s manual used for a description of the programmable controller system safety precautions These SAFETY PRECAUTIONS classify the safety precautions into two categories DANGER and CAUTION Procedures which may lead to a dangerous DANGER 7 pan condition and cause death or serious injury if not carried out properly Procedures which may lead to a dangerous CAUTION condition and cause superficial to medium injury or physical damage only if not carried out properly Depending on circumstances procedures indicated by Z CAUTION may also be linked to serious results In any case it is important to follow the directions for usage Store t
5. dule If the screws are loose it may result in fallout short circuit or malfunction Tightening the screws too far may cause damage to the screws and or the module resulting in fallout short circuit or malfunction CAUTION e Do not diassemble or modify the modules Doing so could cause failure malfunction injury or fire Shut off the external power supply for the system in all phases before mounting or removing the module If you do not switch off the external power supply it will cause failure or malfunction of the module Before handling the module touch a grounded metal object to discharge the static electricity from the human body Not doing so may cause a failure or malfunction of the module OPERATION PRECAUTIONS DANGER e Do not write data to the system area in the buffer memory of the special function module Also do not output or tum on a use prohibited signal from the programmable controller CPU to the special function module If data is written to the system area or if the use prohibited signal is output there is a risk that the programmable controller system will operate incorrectly CAUTION e Before performing the control of the programmable controller in operation especially changing data program and operation status Remote RUN STOP by connecting a personal computer etc to the special function module read User s Manual Com link func Print func carefully and confirm if the o
6. his manual in a safe place so that you can take it out and read it whenever necessary Always forward it to the end user DESIGN PRECAUTIONS DANGER e When performing the control of the programmable controller in operation especially changing data program and operation status Remote RUN STOP by connecting a personal computer etc to the special function module configure an interlock circuit in a sequence program so the safety of the overall system is always maintained Particularly in the above described control for a remote site programmable controller from an external device troubles occurring on the programmable controller side may not be immediately handled due to a data communication error Construct an interlock circuit in the sequence program and determine between the external device and programmable controller CPU the system s error handling procedure and other items regarding data communication errors CAUTION e 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 9 inch or more from each other Not doing so could result in noise that would cause malfunction INSTALLATION PRECAUTIONS CAUTION Use the programmable controller in the environment given in the general specifications section of the applicable User s Manual for the CPU module used Using this programmable controller in an environment
7. interface RS 422 485 interface for external device connection 4 1 Loading and Installation This section explains precautionary items regarding handling of the C24 from unpacking up to installation and the installation environment that are common to all modules See the user s manual for the programmable controller CPU module used for further details regarding module loading and installation Precautionary Items when Handling The following explains precautionary items when handling the module 1 Do not drop or apply severe shock to the module case since it is made of resin 2 Tighten the module installation screws within the specified torque range as follows Tightening Torque Range RS 422 485 terminal block terminal screws 59 to 88N ecm M3 5 screw 5 2 to 7 8lb sinch Module installation screws M4 screw 78 to 118N ecm 6 9 to 10 4lb sinch RS 422 485 terminal block installation screws 49 to 78N cm M3 5 screw 4 3 to 6 9lb sinch 4 2 Installation Environment Avoid the following conditions for the installing location of the AnS Series programmable controller 1 Location where the ambient temperature exceeds the range of 0 to 55 C 2 Location where the ambient humidity exceeds the range of 10 to 90 RH 3 Location where condensation occurs due to a sudden temperature change 4 Location where corrosive or inflammable gas exists 5 Location where a lot of conducti
8. l tit Full duplex Bidirectional connection _ communication method 1 n m n Half duplex connection communication method Synchronization system Start stop synchronization method Transmission speed 300 600 1200 2400 4800 9600 19200 bps Selected via the switch Data 1 format Selected via the switch Access cycle Processing for one request is performed during the END processing of the sequence program Therefore the access cycle is one scan time Error detection Parity check yes odd even or no DTR DSR control ER DR DC1 DC3 DC2 DC4 Yes No selected by setting to the buffer memory control Line configuration Dedicated protocol Secreta programmable P eer controler CPU Bidirectional RS 422 485 Overall distance 500m 1640 ft or less Current consumption 5VDC 0 1A Occupied I O points 32 points 2 Weight 0 25 kg 0 56 Ib 1 When data communication can be performed using the full duplex transmission method this transmission method is used whenever the on demand function is used 2 When performing I O assignment using the GPP function set as special 32 points The model name to register when using the dedicated commands the following model name should be set depending on C24 and programmable controller CPU mounted to C24 Programmable Types of C24 to mount controller CPU mounted to C24 A1SJ71UC24 R4 A1SJ71C24 R4 AnUCPU A1SJ71UC24 AJ71C24S3 AnACPU AJ71C24S3 Other than AnU AnACPU Model name se
9. l error Normal SIO SIO error When overrun or framing error li When received data has been discarded due to OS receive area full Normal COM Computer link Computer link or multi drop link local station Multi drop link master station zli z unlit Description Transmission settings all are set to OFF at the time of shipment 01 Notus drop link selection link impossible 03 A1ADP SP setting A1ADP A1ADP g SP used SP not used a a during RUN 05 Transmission setting See 2 _08 __ Data bit setting 8bits_ 7 bits _ 09 Parity bit seting Yes No e ate il Ue al setting 12 Sum check setting YES No 14 This setting is available when software version of the A1SJ71UC24 R4 is X or later and not available for the A1SJ71024 R4 2 Transmission speed settings Number Name eescription _______ ation number setting Module station number setting set to 00 at time of switch shipment lt Setting range gt 18 00 to 31 X10 set the station number ten s place X1 set the station number unit s place Mode setting switch Mode setting set to 0 at the time of shipment T Mode Setting contents Bevo o Use prohibited Ne lt A 1 D Use prohibited 3 4 Nonproceduremode 6 _ Type 2 dedicated protocol mode _8 Type 4 dedicated protocol mode 9 to Use prohibited E For module test RS 422 485
10. mable controller that conforms to the EMC directive and low voltage instruction By making this product conform to the EMC directive and low voltage instruction it is not necessary to make those steps individually 1 Overview This manual is intended for installing the computer link module and performing wiring for external devices After unpacking the module check that the following products are included Model name Item name Quantity A1SJ71UC24 R4 A1SJ71C24 R4 In the explanation hereafter the computer link multi drop link module is abbreviated as the C24 except when differentiate specially The following accesses to the programmable controller CPU with a dedicated protocol of the computer link function are possible by using A1SJ71UC24 R4 Access to the device extended by ANACPU AnUCPU and A2US H CPU Access to the other stations via MELSECNET 10 Other specifications are the same as A1SJ71C24 R4 Differentiate the terminal resistors as follows 330Q Orange Orange Brown 110Q Brown Brown Brown 2 Transmission Specifications The following table indicates the transmission specifications when using the C24 computer link function For general specifications of the UC24 see the user s manual for the CPU module used item _ Specification Conform to RS 422 485 Transmission method Dedicated protocol Half duplex communication method 1 No protoco
11. ontacts Before connecting the cables check the type of interface to be connected Connection or erroneous wiring to the wrong interface may damage the module and external device When connecting an external device to RS 422 interface of this module do not connect a device that must receive power from this module The module or external device may be damaged Tighten the terminal screw within the range of specified torque If the screws are loose it may result in short circuit or malfunction Tightening the screws too far may cause damage to the screw and or the module resulting in fallout short circuit or malfunction Do not grab on the cable when removing the communication cable connected to the module When removing the cable without connector loose the screw on the side that is connected to the module Pulling the cable that is still connected to the module may cause malfunction or damage to the module or cable due to bad cable contacts Be sure there are no foreign substances such as sawdust or wiring debris inside the unit Such debris could cause fire damage or malfunction STARTING AND MAINTENANCE PRECAUTION DANGER e Do not touch the terminals while the power is on Doing so may cause malfunction e Always switch OFF the external supply power used by the system in all phases before cleaning or retightening screws If you do not switch off the external power supply it will cause failure or malfunction of the mo
12. outside the range of the general specifications could result in electric shock fire malfunction and damage to or deterioration of the product Shut off the external power supply for the system in all phases before wiring If you do not switch off the external power supply it will cause electric shock or damage to the product Insert the tabs at the bottom of the module into the mounting holes in the base module and tighten the module installation screws with the specified torque If the module is not properly installed it may result in malfunction failure or fallout Tighten the screw within the range of specified torque If the screw are loose it may result in fallout short circuit or malfunction Tightening the screws too far may cause damage to the screw and or the module resulting in fallout short circuit or malfunction Do not directly touch the module s conductive parts or electronic components Doing so could cause malfunction or failure in the module Perform correct pressure displacement crimp contact or soldering for wire connections using the tools specified by the manufactures Attach connectors to the module securely WIRING PRECAUTIONS CAUTION Be sure that the communication cable connected to the module is kept in a duct or fixed with cramps Failure to do so may cause a damage to the module or cables due to dangling shifting or inadvertent handling of cables or misoperation because of bad cable c
13. owing wiring diagram represents a terminal resistor 10 1 Example of connecting external devices and C24 by 1 1 External device Cable connection and ___Signalname signal direction example Signal name C FG 2 Example of connecting external devices and C24 by 1 n Connecting external devices and C24 modules via RS 485 P Ekiemai i device Station 0 C24 te gpa soa ED sos soe apa DA EZ goa ROB 1 se s 3 Example of connecting external devices and C24 by m n Connecting external devices and C24 modules via RS 485 device stationn ca Station 1 i E Station 0 ca SDA SDB RDA RDB 11 4 Countermeasure for data reception errors in the external device with the RS 422 or RS 422 485 connection During data communication with external devices via C24 RS 422 485 interface if there is a possibility that the external device receives an error data install pull up and pull down resistors to the external device side about 4 7kQ 1 4 W as a reference of resistor value Installation of pull up and pull down resistors will prevent data reception errors 4 7kQ1 4W RDA gt Terminal resistor Reception data RDB t 4 7kQ1 4W 77 External device Installation of pull up and pull down resistors will prevent data reception e
14. rrors The following explains the case in which pull up and pull down resistors are not installed to the external device 1 When nore of the stations are receiving the transmission line is in a state of high impedance causing the transmission line to become unstable due to noise and a possibility that the data will be received incorrectly at the external device When this happens a parity error or framing error is likely to occur Therefore skip the data when the error has occurred 2 For data communication using the dedicated protocol the first data will be determined based on the format used by the user Skip the data received prior to the first data as determined 12 5 Precautionary items when wiring 1 When connecting the SG and FG signals of the C24 to an external device follow the specification of the external device 2 If data communication cannot be performed normally due to external noise even if the wiring is done according to this section perform wiring as follows Connect nnA and nnB in each signal of the connector cable as a pair C24 Opposite device Shield e ie ae SDB J RDA RDB J SG FG eek When data communication cannot be performed normally even if this wiring is done connect the connector cable shield to either one of the FG terminals on the connected device when connect to the external device refer to the handling manual of the external device 1
15. tting is not necessary as the dedicated command cannot be used 3 Name of Each Part and Setting A1SJ71C24 R4 go neu oson PAS ak sere EAS nk psoe r Go Cnosos 1 Indicator LED s _ Omo P 2 Transmission gt specification ir S setting switch os Cou 3 Station number or Cu x4 setting switch o cm l cm j a jj mone 4 4 Mode setting switch 2 EAKA 6 RS 422 485 interface aN Se 7 ale The module diagram is shown with A1SJ71C24 R4 A1SJ71C24 R4 Description RI operation indicator Normal lit NEU 0 SCAN Error unlit A Seen r SD Transmission status CN O SIOE Data being transmitted flashing Hes g pane Reception status soo Data being received flashing COM CU MDL CPU Communication Status with CPU main module Communicating with programmable controller CPU flashing MD Multi droplink Multi droplink lit Computer link unit N EU Neutral status Transmission sequence initial status waiting for ENQ z lit ENQ reception complete _ unlit NEU O SCAN ACK O SET E NAK O SCAN E CIN O SIOE P S O PRO O ST DWN sio O COM O MDL Description ACK transmitted NAK transmitted programmable controller CPU Error in communication with the programmable controller CPU Normal communication Protocol error Normal protoco
16. ve powdery substance such as dust and iron filing oil mist salt or organic solvent exists 6 Location exposed to direct sunlight 7 Location where strong electric fields or magnetic fields form 8 Location where vibration or impact is directly applied to the main module External Wiring The standard method for connecting the RS 422 485 line is shown below ais SG abbreviation C24 lt gt extemal device __SDA__ gt Transmission data ro SDB ___ Transmission data nc Vacancy _ Function block diagram for the C24 SDA Transmission data f sSDB pn ORDA Reception data i o RDB If the C24 serves as the first or the last station on the RS 422 485 line connect a terminal resistor as shown below to the RS 422 485 interface according to the communication specification OKO When a terminal resistor is not connected an error may result during data communication e For RS 422 communication 330 Q 1 4W e For RS 485 communication 110 Q 1 2W 1 When an external device and the C24 are connected in 1 1 or 1 n connect a terminal resistor between SDA and SDB as well as between RDA and RDB 2 When an external device and C24 are connected in m n connect a terminal resistor between RDA and RDB The R in the foll
17. verall safety is maintained Failure to perform correct operations to change data program or the status may result in system malfunction machine damage or an accident DISPOSAL PRECAUTIONS CAUTION e When disposing the product treat it as industrial waste About Manuals The following product manuals are available Please use this table as a reference to request the appropriate manual as necessary Related Manuals Manual No adel Co j SH 3510 Computer Link Module Guide Book 13JE76 Computer Link Module Com link func Print func SH 3511 User s Manual 13JE77 When using this module be sure to read Computer Link Module User s Manual Com link func Print func as well as this manual A1SJ71UC24 R4 computer link function is the same as AJ71UC24 When you refer to the following manual to use A1SJ71UC24 R4 replace the module model name to refer Computer Link Module User s Manual Com link func Print func Diag Rideau EE EA Version C or before AJ71UC24 gt A1SJ71UC24 R4 Conformation to the EMC Directive and Low Voltage Instruction For details on making Mitsubishi programmable controller conform to the EMC directive and low voltage instruction when installing it in your product please see Chapter 3 EMC Directive and Low Voltage Instruction of the User s Manual Hardware of the programmable controller CPU to use The CE logo is printed on the rating plate on the main body of the program
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