A1SJ71QC24 (-R2) Serial Communications Module User`s Manual
Contents
1. 5 12 34 5 0 26 3 69 1 03 1 36 mm inch R1 bend radius near terminal board Cable diameter x 4 R2 bend radius near connector Cable diameter x 4 r1 bend radius near crimp terminal Can be connected within the range over which bending is not excessive Except for the interface section the A1SJ71QC24 R2 outline dimensions of all two models are the same The illustration above shows the outline dimensions of the A1SJ71QC24 162. How to discriminate between the terminating resistors 330Q Orange Orange Brown 110Q Brown Brown Brown Transmission Specifications The transmission specifications of the QC24 is shown below Refer to CPU module User s Manual for QC24 general specification ee A18J71QC24 R2 RS 232C RS 232C ED Full duplex Half duplex onies system Only RS 232C interface is selectable Synchronous system Asynchronous system Unit bps Each of CH1 and CH2 selects Start bit Data format Data bit Parity bit 1 yes 0 no Stop bit Specifications A1SJ71QC24 A1SJ71QC24 R2 Error Parity check Yes odd even No code Transmission DTR DSR Yes Only RS 232C interface is selectable No control Yes DC1 DC3 DC2 DC4 No Writing to EEPROM 100 000 times for the same area Max RS 232C 1 1 RS 422 485 1 1 1 n m n Only 1 1 can be used for the bidirectional protocol m n can only be used for a dedicated protocol Linked Communication disable mode with intemal mode 15m 49 2ft or less RS 422 485 1200m 3937 0ft or less Power consumption 5 VDC 0 155A Number of I O points Weight kg lb 0 249 0 55 1 Set special 32 points when allocating I O by GPP function Set AJ71QC24 as a model name registration when using dedicated command 3 Name of Each Part and Setting
3. A1SJ71QC24 A1SJ71QC24 R2 Aiss719C24 A 18571QC24 R2 RUN O J ERROR RUN O J ERROR ERR CRW OJ O SWE ERR ERR CRW O O SWE ERR CN NEUD EJNEU CN CN NEUD EJNEU CN PIS ACR JJ ACR PIS H PIS ACK CJ ACK PIS ii PRO NAK I J NAK PRO LED display PRO NAK I NAK PRO LED display sio SDV I JsDV silo so sowo SDW SIO SD O SD O Ro O RD o I Module CT Module version version DISPLAY seal 1 DISPLAY seal 1 LED display LED display select switch z select switch Station number JE Le Station number switch 96 switch Mode switch Mode switch Transmission Transmission specifications specifications switch switch RS 232C RS 422 485 interface interface CH1 VCH1 RS 232 C A1SJ71QC24 A1SJ71QC24 R2 wv RS 232 C RS 232C interface 1 Seal showing the module hardware version and software version Example _ that the software version is B Shows that the hardware version is A 1 LED Display The display LEDs indicate the data communication status operating status error status of the QC24 RUN CJ J ERROR ERR C R W O O SW ERR CN NEU DJ OI NEU CN PS ACR DJ LIJ ACR P S PRO NAK J ONAK PRO sio sD w 0 LIJ SDMV SIO sD O O sD RDO ORD CH1 CH2 RW Communicatin Blinks during PC communications g with PC when not aR HE is OFF Switch setting p AB After Normal End E Abnormal issi transmitted transmitted
4. 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 to secure communication cables in ducts or fix them 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 due to bad cable connection 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 devices Tighten the terminal screw within the range of specified torque If the screws are loose it may result in short circuits or malfunction Tightening the screws too far may cause damages to the screws and or the module resulting in a fallout short circuits or malfunction Do not grab on the cable when removing the communication cable connected to the module When removing the cable with a connector hold the connector on the side that is connected to the module When removing the cable without a connector first loosen the screws on the part that is connected to the module Pulling the cable that is still connected to the module may cause a damage to the module or cable or misoperation due to bad cable contacts Be sure there are no foreign substances such as sawdust or wiring debris inside the module Such debris could cause fires damage or erroneous
5. 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 100mm 3 9 inch or more from each other Not doing so could result in noise that would cause erroneous operation INSTALLATION PRECAUTIONS CAUTION 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 Switch all phases of the external power supply off when installing or placing wiring Not doing so could result in electric shock or damage to the product Insert the tabs at the bottom of the module into the mounting holes in the base unit Then tighten the module installation screws with specified torque If the module is not properly installed it may result in malfunction breakdowns or the module may fall off Tighten the screw within the range of specified torque If the screws are loose it may result in fallout short circuits or malfunction Tightening the screws too far may cause damages to the screws and or the module resulting in a fallout short circuits or malfunction Do not directly touch the module s conductive parts or electronic components Doing so could cause malfunction or trouble in the module Perform correct pressure displacement
6. _ M3 5 screws 5 2 to 7 8lb inch Module installation screws M4 screws 6 9 to 10 4Ib sinch RS 422 485 terminal block installation 39 to 59N cm 4 to 6kgf e cm screws 3 5 to 5 2Ib inch M3 screws RS 232C connector installation screw M2 6 screws 1 7 to 2 0Ib sinch Installation Environment Do not install the Q2AS series PC in the following environments 1 Where the ambient temperature exceeds the O to 55 C range Where the ambient humidity exceeds the 10 to 90 RH range Where condensation is produced by sudden temperature changes Where corrosive or combustible gas is present Where dust iron powder and other conductive powder oil mist salt or organic solvents are prevalent 6 In direct sunlight 7 Where a strong electric or magnetic field is generated 8 Where vibration and shock may be transmitted directly to the module 5 External Wiring 5 1 Connecting RS 232C Line The standard connection procedure for RS 232C line is explained below Signal Signal ae 3 Signal Name QC24 1 Code External _ Eemal Doves 1 CD JReceive carrier detection e E SD TXD Send data p 4 DTR ER Data terminal ready Po n 5 SG Signalground 6 DSR DR Datasetready 7 RS RTS Sendrequest_ 8 CS CTS Sendenabled 1 A1SJ71QC24 CH1 side A1SJ71QC24 R2 CH1 side CH2 side The following type of the RS 232C connector is used The counter connector m
7. operation STARTING AND MAINTENANCE PRECAUTIONS DANGER e Do not touch the connector while the power is on Doing so could cause erroneous operation Switch all phases of the external power supply off before cleaning or re tightening screws If you do not switch off the external power supply it will cause failure or malfunction of the module If the screws are loose it may result in fallout short circuits or malfunction Tightening the screws too far may cause damages to the screws and or the module resulting in a fallout short circuits or malfunction STARTING AND MAINTENANCE PRECAUTIONS CAUTION e Donot disassemble or modify the modules Doing so could cause trouble erroneous operation injury or fire e Switch all phases of the external power supply off 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 OPERATING PRECAUTIONS DANGER e Do not write data into the system area of the buffer memory of special function modules Also do not output the prohibited to use signal as the output signal to a special function module from the PC CPU Writing data into the system area or outputting a signal for prohibited to use may cause system malfunctions in the PC CAUTION e Before performing the control of the PC in operation especially changing data program and operation status status control by conn
8. 85 External i Station 0 QC24 i RS 485 Station 1 QC24 RS 485 Station n QC24 device i i i i i spac i id soa ii ii soa oo A ie SDA El spp Hg Sa a eet ae es sos Dl i RDA SR ora ooo rn Er i El kbp i H i RB ij i RB b Es Ros El i eee el ii se me Fi t Es er FG CHa Seem 1 fe oo i ro 13 3 Example of connecting external devices and QC24 by m n Connecting external devices and QC24 using RS 485 pee te Se a ae i External i i External i device i device i i i I i ran ianmman i StationO i Station GPP fo meee i Station n i i QC24 i i QC24 i QC24 In case of connecting external devices and QC24 by m n refer to Section 5 1 for an example of connecting external devices and QC24 using RS 232C 4 Countermeasure for data receive errors at the external device with RS 422 and RS 422 485 connections During the data communication with external devices via QC24 RS 422 485 interface if 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 a data receive error 4 7k Q1 4W i RDA Terminal Received data aa 4 7k Q1 4W External device 14 When there is a pull up or pull down resistor at the external device erroneous data is not received The following describes the c
9. IONS classify the safety precautions into two categories DANGER and CAUTION Procedures which may lead to a dangerous lt DDANGER conte condition and cause death or serious injury if not carried out properly I I I I I I Procedures which may lead to a dangerous ANCAUTION condition and cause superficial to medium injury or I physical damage only if not carried out properly Depending on circumstances procedures indicated by CAUTION may also be linked to serious results In any case it is important to follow the directions for usage Store this 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 PC in operation especially changing data program and operation status status control 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 Especially when this control is performed to a remote PC from an external device troubles that have occurred on the PC side may not be able to immediately be handled if there is a data communication error Define a troubleshooting agreement between external devices and the PC CPU for data communication error occurrences as well as construct an interlock Circuit in the sequence program DESIGN PRECAUTIONS CAUTION
10. MITSUBISHI A1SJ71QC24 R2 Serial Communications Module User s Manual Hardware Thank you for buying the Mitsubishi General Use PC MELSEC Q2AS Series Before use please read this manual carefully and correctly operate the module with a sufficient understanding of the Q2AS series PC functions and performance Please place this manual in a location where it is available to end users QnA MELSEG 1998 MITSUBISHI ELECTRIC CORPORATION MODEL A1SQC24 U H W E MODEL CODE 13J853 IB 66686 B 9808 MEE The United States Canada United Kingdom Germany Taiwan Hongkong amp China Singapore amp Malaysia Thailand Australia Republic of South Africa Mitsubishi Electronics America Inc Industrial Automation Division 800 Biemann Court Mt Prospect IL 60056 Phone 708 298 9223 Mitsubishi Electric Sales Canada Inc Industrial Automation Division 4299 14th Avenue Markham Ontario L3R OJ2 Phone 416 475 7728 Mitsubishi Electric UK Ltd Industrial Sales Division Travellers Lane Hatfield Herts AL10 8XB Phone 0707 276100 Mitsubishi Electric Europe GmbH Industrial Automation Division Gothaer Strasse 8 Postfach 1548 D 4030 Ratingen 1 Phone 02102 4860 Setsuyo Enterprise Co Ltd 106 11th FI Chung Ling Bldg 363 Sec 2 Fu Hsing S Rd Taipei Taiwan R O C Phone 02 732 0161 Ryoden International Ltd Industrial amp Electrical C
11. ase when a pull up or pull down resistor is not installed to the external device 1 When no station is sending the send line becomes high impedance and noise etc may cause the send line to change and the external device to receive erroneous data In this case there is probably a parity error or framing error Therefore skip the erroneous data 2 Since the first data during data reception is fixed in the following cases also skip the receive data until the head data is received When using a dedicated protocol for data communication the user selects the first data according to the mode and format used When performing data communication using user frames with Non procedure protocol the user selects the first data according to the user frames registered in the QC24 5 Connection precautions When connecting the QC24 SG and FG signals to the external device connect them according to the specifications of the external device 1 In the description of the setting and connection of the terminal resistor in this section if the RS 232C RS 422 converters etc are used on the stations on both ends of the network the setting and connection of the terminal resistor is necessary on the converter side The devices connected to the QC24 RS 422 485 interface must be unified with either RS 422 or RS 485 for 1 n and m n connections 15 6 External Dimensions A1SJ71QC24 R2 A18J71QC24 RUN ERRO
12. ebook IB 66622 13JF11 Serial Communications Module User s Manual IB 66612 13825 1 Computer Link Guidebook SH 3510 13JE76 Computer Link Multidrop Link Module User s Manual SH 3511 Computer Link Function Printer Function 13JE77 1 A1SJ71QC24 R2 s updated information is added in the manual printed after manual IB 66612 B Please read Serial Communications Module User s Manual before using this module Correspondence to EMC DIRECTIVE To make the PCs compliant with the EMC directive refer to Chapter 2 EMC AND LOW VOLTAGE DIRECTIVE in the PC CPU user s manual Hardware When the PC CPU user s manual Hardware does not include Chapter 2 EMC AND LOW VOLTAGE DIRECTIVE refer to QnA Series CPU Compatible High Speed Access Basic Base Unit Corresponding CPU EMC Conforming Product Additional Explanation IB 68837 optional 1 Overview This manual describes how to install the following serial communications modules and how to wire them with external devices When unpacking the module check that the products listed in the table below are present Model Product Name 1 A1SJ71QC24 serial communications module RS 422 communication terminal resistor 3309 2 A1SJ71QC24 RS 485 communication terminal resistor 1109 2 1 2W brown brown brown A1SJ71QC24 R2_ A1SJ71QC24N R2 serial communication module Unless there is a need to identify each device all of the modules are referred to as QC24
13. ecting a personal computer etc to the special function module read the manual carefully and confirm if the overall 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 When using the module while values such as buffer memory set values are registered in the EEPROM do not turn off the power supply for the module loading station nor reset the PC CPU If the power supply for the module loading station is truned off or the PC CPU is reset while any values are registered the data contents in the EEPROM become inconsistent and as a result the values must be set again in the buffer memory etc and reregistered to the EEPROM Also this may cause failure and malfunction of the module DISPOSAL PRECAUTIONS CAUTION e When disposing of this product treat it as industrial waste Table of Contents About This Manual 1 2 3 4 Overview Transmission Specifications Name of Each Part and Setting Mounting and Installation 4 1 Handling Precautions 4 2 Installation Environment External Wiring 5 1 Connecting RS 232C Line 5 2 Connecting RS 422 485 Line External Dimensions About This Manual The following product manuals are available Please use this table as a reference to request the appropriate manual as necessary Related Manual Manual No Manual Names Model Code Serial Communications Module Guid
14. ie End After Abnormal End After Normal transmission transmitted end transmitted status state generated transmission Switch setting error mode switching error N send error receive orma error on demand error Initial Related Protocol LED Name Meaning of LED ON LED OFF Status Dedi Non ES LED Display ON BLINK OFF of LED cated Pes ES Display communications 2 select resul switch j ERR A ih i Normal ide check error 5 nn Tm Any of ERR error C N ERROR Error batch error P S error PRO Normal error SIO error occur Scr aa OF OT Blinks during data receive Blinks during data ae When receive data purged because OS Normal area is full 1 The displayed content is valid when the dedicated protocol is set as the target interface The LED is off when other than the dedicated protocol is set as the target interface 2 The LED is turned on when an illegal communication request is received from an external device or an error occurs while accessing the PC CPU 2 Station number switch setting Set the station number so that external devices can specify the PC as the target of access during data communication via the dedicated protocol Station Switch Description Details Station number of the local QC24 is set from 0 to 31 Do not set a station number over 32 X10 sets the station number 10 digit X10 X1 X1 sets the station number 1 digit Make sure that the station number setting does not
15. inal on the external signal are internally connected device side or on the external device side do 2 When a normal data communication cannot be performed because of external noise even though the wiring has been made as above perform the wiring as follows Connect between the FG terminal of the external device side and connector cabinet area of the QC24 side with the shield of the connection cable On the external device side however follow the instruction manual of the external device e Connect each signal other than SG of the connection cable by paring up with SG QC24 side Partner device side F eta Sees RD ME EET EAEE Dret Ei SE SD Manaarramanasamanaerrrannnrriaannnaeenas DTR DSR SG Connector eee cabinet area 3 Do not connect a RS 422 device to the RS 232C interface If a RS 422 device is connected the RS 422 interface hardware on the connected device will be damaged and communication will be disabled 10 5 2 Connecting RS 422 485 Line The standard connection procedure for RS 422 485 line is explained below Sianal Signal rae 9 Signal Name QC24 1 Code External Externe Devic RDA Receiveddata a RDB Receiveddata gt O SG Signalground PR 14 A1SJ71QC24 CH2 side A1SJ71QC24 R2 None Function block diagram for the QC24 side SDA Send data SDB RDA Received data RDB 11 If the QC24 is the first or last station o
16. n the RS 422 485 line connect a terminal resistor of the following specifications to the RS 422 485 interface Data communication will be disturbed if a terminal resistor is not used e For RS 422 communication 330 Q 1 4 W e For RS 485 communication 110 Q 1 2 W 1 When a QC24 is connected to each external device connect a terminal resistor between RDA and RDB When the relationship between the numbers of connected external devices and QC24s is 1 n connect terminal resisters between SDA and SDB and between RDA and RDB When the relationship between the numbers of connected external devices and QC24s is m n connect a terminal resister between RDA and RDB The R in the wiring diagram below indicates the connection of a terminal resistor 1 Example of connecting external devices and QC24 by 1 1 External Device Connection and Signal QC24 Side SignalName Direction Example Signal Name 7 12 2 Example of connecting external devices and QC24 by 1 n 1 Connecting external devices and QC24 using RS 232C External device RS 232C Station 0 QC24 Station 1 QC24 Station n QC24 SDA SDA SDA R SDB SDB SDB R SD RDA RDA RDA be lt R RDB RDB RDB K SG SG FG ii nee i ve CH1 CH2 External device Station n QC24 SDA SDA SDA SDA El cos SDB SDB K SDB RDA RDA RDA RDA R RDB RDB RDB K RDB SG SG T SG FG hi P M P CH1 CH2 3 Connecting external devices and QC24 using RS 4
17. ontrols Division 10 F Manulife Tower 169 Electric Rd North Point Hong Kong Phone 8878870 MELCO Sales Singapore Pte Ltd Industrial Division 307 Alexandra Rd 05 01 02 Mitsubishi Electric Bldg Singapore 0315 Phone 4732308 F A Tech Co Ltd 1138 33 34 Rama 3 Rd Yannawa Bangkok 10120 Phone 02 295 2861 4 Mitsubishi Electric Australia Pty Ltd Industrial Controls Division 348 Victoria Rd Rydalm ere N S W 2116 Phone 02 684 7200 M S A Manufacturing Pty Ltd Factory Automation Division P O Box 39733 Bramley Johannesburg 2018 Phone 011 444 8080 da MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE MITSUBISHI DENKI BLDG MARUNOUCHI TOKYO 100 TELEX J24532 CABLE MELCO TOKYO NAGOYA WORKS 1 14 YADA MINAMI 5 HIGASHI KU NAGOYA JAPAN When exported from Japan this manual does not require application to the Ministry of International Trade and Industry for service transaction permission Specifications subject to change without notice Printed in Japan on recycled paper 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 for a description of the PC system safety precautions These SAFETY PRECAUT
18. overlap with another QC24 etc on the same network Not necessary to set the station numbers in connect order Station numbers can also be skipped The factory setting is 00 Station No 3 Mode switch setting Set data communication functions for each interface Set CH1 to 0 Set CH2 to 1 to6 When CH1 and CH2 operate independently Setting impossible Format 1 Binary mode Setting impossible ROM RAM switch test Self loopback test The factory setting is 1 Always set 1 to 7 for the mode setting switch on the interface side that is not connected to the external device 4 Transmission specifications switch setting Set specifications for the communication with the data communication destination device as well as other items Switch Details ER CH1 to OFF Operation setting ene operation CH2 can be set to P 7 ON OFF SV2 Data bits setting Parity bit not included Parity bit enable When set to Enable the ES disable setting setting of SW4 is effective Even parity Even Effective only when Parity odd parity setting Bit is selected a Stop bit setting Sum check enable Dedicated SE disable setting bidirectional protocol Write during RUN enable disable Disable Enable Dedicated protocol setting Setting change Disable Enable Sabon Swing anig EEPROM write enable disable prohibit allow Ri allow prohibit SS Each of CH1 and CH2 can Say 42 SS setting select The factory
19. settings are all OFF 1 The data transmission speeds allowed to set are as follows gt Transmission speed unit bps Le 300 600 1200 2400 4800 9600 19200 38400 14400 28800 57600 115200 SW09 OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON h SW10 OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON SW12 OFF OFF OFF Settings other than above are not accepted The transmission specification setting switch shown above is located on the modules whose hardware versions are as follows e A1SJ71QC24 Version F or later e A1SJ71QC24 R2 Version E or later Even though the switch layout has been changed the function set by each switch and the corresponding ON OFF position remain the same as those of the conventional model 4 4 1 4 2 Mounting and Installation This section describes the handling precautions and installation environment common to all the modules when handling the QC24 from unpacking to installation Refer to the User s Manual of the PC CPU module used for a detailed description of mounting and installation of the module Handling Precautions This section describes the module handling precautions 1 The module case is made of plastic Be sure not to drop it or subject it to strong vibration 2 Tighten the module installation screws within the following tightening torque range o Serew Tightening Torque Range
20. ust match this connector 9 pin D sub female screw type 17L 10090 27 D9AC DDK ELECTRONICS LTD 1 An example of connecting to an external device which is capable of turning ON OFF the CD signal pin 1 Full duplex Half duplex communications QC24 Side Connection and Signal External Device Direction Example CS CTS 2 An example of connecting to an external device which is not capable of turning ON OFF the CD signal pin 1 a An example for DC code control or DTR DSR control Full duplex communications QC24 side Connection and Signal External Device SignalName Pin No Direction Example _ Signal Name DR 2 omm s pr eR TD s 5 e oR e Eeee TT TI CS CIS 8 la b An example for DC code control Full duplex communications QC24 Side Connection and Signal External Device Signal Name Pin No Direction Example _ Signal Name 7 ae ae ES EE CD RD RxD 2 smo s C ORE LA e ee oR 6 cs Crs 8 a 3 Precaution when performing connections 1 Handle the FG signal and the shield of the connection cable in the following manner s Connection Method __Remark_ FG signal Connect to the e Do not short circuit the FG connector cabinet area signal and the SG signal of the on the QC24 side connection cable connector cabinet area not connect the FG signal to the on the QC24 side QC24 Shield Connect to the FG When the FG signal and the SG term
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