Serial Communication Module User`s Manual (Hardware)
Contents
1. 20 WARRANTY Mitsubishi will not be held liable for damage caused by factors found not to be the cause of Mitsubishi machine damage or lost profits caused by faults in the Mitsubishi products damage secondary damage accident compensation caused by special factors unpredictable by Mitsubishi damages to products other than Mitsubishi products and to other duties 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 55 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 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 22. b An example for DC code control Full duplex communications QC24N Side Connection and Signal Direction External Device Signal Name Pin No Example Signal Name CD RD RXD SD TXD DTR ER SG DSR DR RS RTS CS CTS RD RXD SD TXD DTR ER DSR DR RS RTS CS CTS INI OD a A JN 3 Precaution when performing connections 1 Handle the FG signal and the shield of the connection cable in the following manner oS Connection Method Remark FG signal Connect to the connector Pe i cabinet area on the QC24N Do not short circuit the FG signal and the SG signal of the connection cable When the FG signal and the SG signal are internally connected on the external device side do not connect the FG signal to the QC24N side Shield Connect to the FG terminal on the external device side or connector cabinet area on the QC24N side 11 2 When a normal data communication cannot be performed because of external noise even though the wiring has been made as 1 perform the wiring as follows Connect between the FG terminal of the external device side and connector cabinet area of the QC24N side with the shield of the connection cable On the external device side however follow the instruction manual of the external device Connect each signal other than SG of the connection cable by paring up with SG QC24N Side Partner device side SD RD
3. DSR DTR DTR 1 1 I y 1 I i SG Connector a cabinet side 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 When using QC24N s modem functions use the RS 232C cable supplied with the modem TA or a cable specified by the modem TA for connection between the QC24N and the modem TA 5 2 Connecting RS 422 485 Line The standard connection procedure for RS 422 485 line is explained below Signal Direction Signal Code Signal Name QC24N 1 External Device SDA Pe Send data SDB Send data R x Ayes Received data M SOI Are Received data Signal ground Frame ground Frame ground 4 A1SJ71QC24N1 CH2 side A1SJ71QC24N1 R2_ None f the QC24N is the first or last station on 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 For RS 422 communication 330 Q 1 4 W For RS 485 communication 110 Q 1 2 W 1 When a QC24N is connected to each external device connect a terminal resistor between RDA and RDB 2 When the relationship between the numbers of connected external devices and QC24Ns is 1 n connect terminal resisters between SDA and SDB and between RDA
4. Wiring 5 1 Connecting RS 232C Line The standard connection procedure for RS 232C line is explained below Signal Direction Signal Name QC24N 1 lt gt External Device Signal Code cD Receive carrier detection RD RXD Received data SD TXD Send data DTR ER Data terminal ready SG Signal ground DSR DR Data set ready RS RTS Send request CS CTS Send enabled A1SJ71QC24N CH1 side A1SJ71QC24N1 R2_ CH1 side CH2 side gt 00 N oO a A vln 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 QC24N Side Connection and Signal Direction External Device Signal Name Pin No Example Signal Name cD RD RXD SD TXD DTR ER SG DSR DR RS RTS CS CTS RD RXD SD TXD DTR ER DSR DR RS RTS CS CTS oln ojas wl n 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 QC24N side Connection and Signal Direction External Device Signal Name Pin No Example Signal Name cD RD RXD SD TXD RD RXD SD TXD DTR ER DTR ER SG DSR DR RS RTS CS CTS DSR DR RS RTS CS CTS INIA A ON
5. and RDB 3 When the relationship between the numbers of connected external devices and QC24Ns 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 13 1 Example of connecting external devices and QC24N by 1 1 QC24N Side External Device Connection and Signal Signal Name Direction Example Signal Name 2 Example of connecting external devices and QC24N by 1 n ernal devices and QC24N using RS 232C 1 Connecting ex External RS 232C Station 0 Rs 485 Station 1 device GAN gaonaaana QC24N ca S04 A SDA SDB 4 H SDB RDA RDA CRT pat RDB sp 4 sD se H 7 SG RD 4 RD IG oaie kG CH1 CH2 2 Connecting external devices and QC24N using RS 422 External s Station 0 Station T Station n device RS422 a yriqczan ra _PS48 Qcoan QC24N AT SOAS Vt SDA SDA SDAN SDA SDB p SDB SDB SDB SDB RDA qi RDA RDA w ae ra RDB pop R RDB RDB sc 7 SG sG FG e 1 FG FG CH1 CH2 14 3 Connecting external devices and QC24N using RS 485 External Station 1 RS 485 station 1 device lt QC24N 1 QC24N SDA 3 Example of connecting external devices and QC24N by m n Connecting external devices and QC24N using RS 485 External i device l device l 1 T
6. the purpose of being used in general industries MITSUBISHI SHALL HAVE NO RESPONSIBILITY OR LIABILITY INCLUDING BUT NOT LIMITED TO ANY AND ALL RESPONSIBILITY OR LIABILITY BASED ON CONTRACT WARRANTY TORT PRODUCT LIABILITY FOR ANY INJURY OR DEATH TO PERSONS OR LOSS OR DAMAGE TO PROPERTY CAUSED BY the PRODUCT THAT ARE OPERATED OR USED IN APPLICATION NOT INTENDED OR EXCLUDED BY INSTRUCTIONS PRECAUTIONS OR WARNING CONTAINED IN MITSUBISHI S USER INSTRUCTION AND OR SAFETY MANUALS TECHNICAL BULLETINS AND GUIDELINES FOR the PRODUCT Prohibited Application Prohibited Applications include but not limited to the use of the PRODUCT in Nuclear Power Plants and any other power plants operated by Power companies and or any other cases in which the public could be affected if any problem or fault occurs in the PRODUCT Railway companies or Public service purposes and or any other cases in which establishment of a special quality assurance system is required by the Purchaser or End User Aircraft or Aerospace Medical applications Train equipment transport equipment such as Elevator and Escalator Incineration and Fuel devices Vehicles Manned transportation Equipment for Recreation and Amusement and Safety devices handling of Nuclear or Hazardous Materials or Chemicals Mining and Drilling and or other applications where there is a significant risk of injury to the public or property A 7 Notwithstanding the above restrictions
7. used in the system before cleaning or screw retightening Failure to do so may result in failure or malfunction of the module If the screw is too loose it may cause an accidental drop of the module short circuit or malfunction Excessive screw tightening may cause damage to the screw and or module resulting in a drop of the module short circuit or malfunction STARTING AND MAINTENANCE PRECAUTIONS A CAUTION Do not disassemble or modify the modules Doing so could cause failure malfunction injury or fire Be sure to shut off all phases of the external power supply used in the system before installing or removing the module Failure to do so may cause failure or malfunction of the module Always make sure to touch the grounded metal to discharge the electricity charged in the body etc before touching the module Failure to do so may cause a failure or malfunctions of the module OPERATING PRECAUTIONS ZA WARNING 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 PLC CPU Writing data into the system area or outputting a signal for prohibited to use may cause system malfunction in the PLC A 5 OPERATING PRECAUTIONS A CAUTION Before performing the control of the PLC in operation especially changing data program and op
8. 2 Atsu71acz4nt r2 ERROR SWE NEU ACK MODE i i VCHI RS 232 LED Indication Module version sticker 1 DISPLAY JO LED indication z switch STATION NO t Station No setting switch t Mode setting switch Transmission setting switch __ RS 232C interface CH2 AISJTIQC24N1 R2__WRS 232 C a RS 232C interface A B Sticker showing the module hardware version and software version Shows that the hardware ES Shows that the software version is A version is B 1 LED Indication The LEDs indicate the data communication status operating status error status of the QC24N RUNES lt 3 ERRORI ERR CRWEJ E3 SWE JERR C N NEU 3 E3J NEU C N P S ACK Z3 TIJACK P S PROJ NAK c3 SJ NAK PRO SIO SDW is 5 SDW SIO SDJij EJ SD RD i 35 RD CH1 CH2 Related Protocol Initial Meaning of LED OFF Non Be LED Name gs Status Bidirec LED Indication ON BLINK OFF of LED ses tional Normal Operation Normal Abnormal Any of ERR error C N error Error batch P S error PRO error SIO error occur Blinks during data transmission Blinks during data Not received reception Blinks during PC Communicating communications with PC when not communicating is OFF Switch setting S
9. 5 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 China Taiwan Korea Singapore Thailand Indonesia India Australia Mitsubishi Electric Automation China 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 3660 9552 Mitsubishi Electric Asia Pte Ltd 307 Alexandra Road 05 01 02 Mitsubishi Electric Building Singapore 159943 Tel 65 6470 2480 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 1 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 ELECTR
10. DC1 DC3 DC2 DC4 No Writing to EEPROM 100 000 times for the same area Max Dedicated protoco RS 232C tol Non procedure RS 422 485 1 1 1 n m n protocol Only 1 1 can be used for the bidirectional protocol Bidirectional m n can only be used for a dedicated protocol protoco Dedicated protoco Linked Non procedure in Link operation not mode protocol i available Bidirectional Data communications protocol not available Transmission distance RS 232C 15m 49 2ft or less Overall distance RS 422 485 1200m 3937 0ft or less 5V DC Internal current consumption 0 38A 0 30A Number of occupied I O points 32 points 1 Weight 0 30kg 0 66lb 0 26kg 0 57Ib 1 Set special 32 points when allocating I O by GPP function Set AJ71QC24 as a model name registration when using dedicated command Interface Communications system Data format Error detection Indepen dent mode 1 n m n 2 2 When the Modem Function is Used The table below lists the transmission specification between QC24N and modem terminal adapter of local station QC24N end abbreviated as TA from here on when the QC24N modem function is used The transmission specification items not shown in the table shall be the same as those listed in Section 2 1 Specifications A1SJ71QC24N1 A1SJ71QC24N1 R2 Applicability of modem function Usable Inte
11. IC CORPORATION HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN NAGOYA WORKS 1 14 YADA MINAMI 5 CHOME HIGASH KU NAGOYA JAPAN When exported from Japan this manual does not require application to the Ministry of Economy Trade and Industry for service transaction permission Specifications subject to change without notice
12. MITSUBISHI Serial Communication Module User s Manual Hardware A1SJ71QC24N1 A1SJ71QC24N1 R2 Thank you for buying the Mitsubishi general purpose programmable logic controller MELSEC QnA Series Prior to use please read both this manual and detailed manual thoroughly and familiarize yourself with the product MODEL A1SJ71QC24N1 U HW oon 13JP85 M as ae IB NA 0800330 B 1112 MEE 2005 MITSUBISHI ELECTRIC CORPORATION SAFETY PRECAUTIONS Read these precautions before using this product Before using this product please read this manual and the relevant manuals carefully and pay full attention to safety to handle the product correctly In this manual the safety precautions are classified into two levels A WARNING and A CAUTION s ee ae ee ee ee ee ee ee eH HK Indicates that incorrect handling may cause 1 i A WARNING hazardous conditions resulting in death or severe l i injury l Indicates that incorrect handling may cause I i I A CAUTION hazardous conditions resulting in minor or moderate I injury or property damage Under some circumstances failure to observe the precautions given under A CAUTION may lead to serious consequences Observe the precautions of both levels because they are important for personal and system safety Make sure that the end users read this manual and then keep the manual in a safe place for future re
13. Mitsubishi may in its sole discretion authorize use of the PRODUCT in one or more of the Prohibited Applications provided that the usage of the PRODUCT is limited only for the specific applications agreed to by Mitsubishi and provided further that no special quality assurance or fail safe redundant or other safety features which exceed the general specifications of the PRODUCTs are required For details please contact the Mitsubishi representative in your region A 8 REVISIONS The manual number is given on the bottom right of the cover Print Date Manual Number Revision Dec 2005 IB NA 0800330 A _ First edition Dec 2011 IB NA 0800330 B Correction COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES Chapter 3 Section 5 1 5 2 Chapter 6 Addition SAFETY PRECAUTIONS Chinese CONDITIONS OF USE FOR THE PRODUCT This manual confers no industrial property rights or any rights of any other kind nor does it confer any patent licenses Mitsubishi electric Corporation cannot be held responsible for any problems involving industrial property rights which may occur as a result of using the contents noted in this manual 2005 MITSUBISHI ELECTRIC CORPORATION A 9 CONTENTS TVG OVOIMOW a arisia aa ET AE EEEE E N E E EEE A E TES 1 2 Transmission Specifications 2 1 When the Modem Function is not Used 2 2 When the Modem Function is Used 3 Part Names And Setting 4 Mounting and Inst
14. Station 0 Station 1 Station n QC24N QC24N In case of connecting external devices and QC24N by m n refer to Section 5 1 for an example of connecting external devices and QC24N using RS 232C 15 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 QC24N 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 7kQ1 4W RDA i N RDB t aa P Received data 4 7kQ1 4W Yan External device ull up or pull down resistor at the external dev erroneous data is not received Remarks The following describes the case 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 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 sele
15. allation 4 1 Handling Precautions 4 2 Installation Environment 5s External WINNA a a ieoa aeaaeae eara AANGE ERa Enada ON 5 1 Connecting RS 232C Line 5 2 Connecting RS 422 485 Line 6 External Dimensions ABOUT THE MANUALS The following product are available for this equipment Refer to the table given below to choose suitable manuals Related Manuals Manual name Manual No Model code i Ci x IB 66622 Serial Communications Module Guidebook 13JF 11 Serial Communications Module User s Manual IB 66612 Modem Function Additional Version 13J825 g SH 3510 Computer Link Guidebook 13JE76 Computer Link Module Com link func Print func SH 3511 User s Manual 13JE77 COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES 1 2 Method of ensuring compliance To ensure that Mitsubishi programmable controllers maintain EMC and Low Voltage Directives when incorporated into other machinery or equipment certain measures may be necessary Please refer to one of the following manuals e User s manual for the CPU module used e User s manual hardware for the CPU module or base unit used Additional measures To ensure that this product maintains EMC and Low Voltage Directives please refer to one of the manuals listed under 1 A 11 1 Overview This manual describes how to install the following serial communications modules hereinafter referred to
16. as QC24N and how to wire them with external devices When unpacking the module check that the products listed in the table below are present Product name Quantity A1SJ71QC24N1 serial communication module RS 422 communication terminal resistor A1SJ71QC24N1 3309 1 4W orange orange brown RS 485 communication terminal resistor 1100 1 2W brown brown brown 3 A1SJ71QC24N1 R2 A1SJ71QC24N1 R2 serial communication module 1 How to discriminate between the terminating resistors 3302 Orange 1102 Brown e e Brown Brown 2 Transmission Specifications The transmission specifications of the QC24N is shown below Refer to CPU module User s Manual for QC24N general specification 2 1 When the Modem Function is not Used The table below lists the transmission specification when the QC24N modem function is not used Specifications A1SJ71QC24N1 A1SJ71QC24N1 R2 CH1 RS 232C RS 232C CH2 RS 422 485 RS 232C Full duplex Half duplex Only RS 232C interface is selectable Synchronous system Asynchronous system 300 600 1200 2400 4800 9600 14400 Transmission speed Unit bps 19200 28800 38400 57600 115200 The total of CH1 and CH2 must be within 230400 bps Start bit 1 Data bit 7 8 Parity bit 1 yes 0 no Stop bit 1 2 Parity check Yes odd even No Sum check code Yes No Transmission DTR DSR Yes Only RS 232C interface is selectable No control DC code Yes
17. cts 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 QC24N 2 gt 5 Connection precautions 1 When connecting the QC24N SG and FG signals to the external device connect them according to the specifications of the external device 2 Connect the shield of the connection cable to either of the FG signals of the connected device 3 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 of both stations with the shield of the connection cable On the external device side however follow the instruction manual of the external device Connect the FG of the QC24N side to the FG terminal at the power supply module of the station which has a QC24N installed or to the FG terminal of the control panel on which the QC24N PC is installed Connect nnA and nnB of each signal in the connection cable as a pair QC24N Side Partner device side Shield spbB LE RDB I I Se ee ee RBA L so SG h sG l FG als FG i Pui a oe ees SN FG 7 To the FG terminal of the power module of the QC24N loading station or to the FG terminal of the control panel 1 In the description of the setting and conn
18. dling precautions and installation environment common to all the modules when handling the QC24N 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 4 1 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 Screw Tightening Torque Range RS 422 485 terminal block terminal screws 59 to 88Necm M3 5 screws Module installation screws M4 screws 78 to 118Necm RS 422 485 terminal block installation screws M3 screws RS 232C connector installation screw 19 to 24Necm M2 6 screws 39 to 59N cm 4 2 Installation Environment Do not install the Q2AS series PC in the following environments 1 Where the ambient temperature exceeds the 0 to 55 C range 2 Where the ambient humidity exceeds the 10 to 90 RH range 3 Where condensation is produced by sudden temperature changes 4 Where corrosive or combustible gas is present 5 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
19. ection 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 2 The devices connected to the QC24N RS 422 485 interface must be unified with either RS 422 or RS 485 for 1 n and m n connections 17 6 External Dimensions 1 A1SJ71QC24N1 g T Asie ME iE oih oye Biri Fa m ia sano of 6 aa e oO aes fa cI 7 t pe eines e s or m dha E a a 1 Aga 65 93 6 26 2 34 5 0 26 3 69 7 03 7 1 36 Unit mm inch R1 bend radaius near terminal board Outside cable diameter x 4 R2 bend radius near connector Outside cable diameter x 4 ri bend radius near crimp terminal Can be connected within the range over which bending is not excessive 2 A1SJ71QC24N1 R2 z g Aisuniaczani n2 _ BE 3 sae i 5 rs vala ofie moj wda oy oo Ho awa of ie sla ofo wla ofi mom STATION NO 130 5 12 Ul J Msunoczant i2 016 3 5 34 5 6 5 0 14 1 36 0 26 Unit mm inch R2 bend radius near connector Outside cable diameter x 4 19 MEMO
20. eration status remote run stop by connecting a personal computer etc to the special function module read this 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 not reset the PLC CPU If the power supply for the module loading station is turned off or the PLC 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 A CAUTION When disposing of this product treat it as industrial waste A 6 CONDITIONS OF USE FOR THE PRODUCT 1 Mitsubishi programmable controller the PRODUCT shall be used in conditions i where any problem fault or failure occurring in the PRODUCT if any shall not lead to any major or serious accident and ii where the backup and fail safe function are systematically or automatically provided outside of the PRODUCT for the case of any problem fault or failure occurring in the PRODUCT 2 The PRODUCT has been designed and manufactured for
21. ference A 1 DESIGN PRECAUTIONS Z WARNING When using the notification function the pager receiver may not be contacted due to the frequency transmission status from the system setup environment and error on the receiver side To ensure the safety of the PLC system install a call circuit with a lamp display or buzzer sound When performing the control of the PLC 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 Especially when this control is performed to a remote PLC from an external device troubles that have occurred on the PLC 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 PLC CPU for data communication error occurrences as well as construct an interlock circuit in the sequence program DESIGN PRECAUTIONS A 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 100mm 3 9 inch or more from each other Not doing so could result in noise that would cause malfunction A 2 INSTALLATION PRECAUTIONS A CAUTION Use the PLC in an environment that mee
22. n error occurs while accessing the PLC 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 Det X10 5 e STATION NO Q 0 Station number of the local QC24N is set from 0 to 31 Do not set a station number over 32 X10 sets the station number 10 digit X1 sets the station number 1 digit Make sure that the station number setting does not overlap with another QC24N 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 3 Mode switch setting Set data communication functions for each interface Mode Switch Details Mode Switch No Setting Contents When CH1 and CH2 operation is linked Set CH1 to 0 Set CH2 to 1 to 6 When CH1 and CH2 operate independently Setting impossible Format 1 Format 2 Dedicated ASCII mode protocol Format 4 Format 5 Binary mode Non procedure protocol NI O on amp ow N Bidirectional protocol fo iw Setting impossible ROM RAM switch test Tnm 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 Transmis
23. rface that can be used modem function RS 232C RS 232C 1 Linked mode between CH1 and CH2 for Unusable QC24N Communications system Full duplex Synchronous system Asynchronous system 1200 2400 4800 9600 14400 19200 28800 38400 57600 115200 The total of CH1 and CH2 must be within 230400 bps Transmission control RS CS control yes no Selection Dedicated protocol Communication enabled Non procedure Applicability of protocol data Bidirectional protocol Communication enabled communication Communication with link dedicated Communication disabled instruction Line connection QC24N Modem 1 1 Transmission speed unit bps Communication enabled 4 Communication by the modem function is possible using either of the two RS 232C interfaces However it is possible to communicate with only CH1 side when communicating with the peripheral device for GPPQ 3 Part Names And Setting A1SJ71QC24N1 Atsu710 24Nn LED Indication Module version sticker 1 LED indication switch Station No setting switch Mode setting switch Transmission setting switch SDB RDAJ A 81 RS 422 485 interface RDB FG WCHI RS 232 C A1SJ710C24N1 a Example e A1SJ71QC24N1 R
24. sion specifications switch setting Set specifications for the communication with the data communication destination device as well as other items Switch Switch State Switch Details CH1 CH2 Setting Item OFF ON Be sure to set the CH1 Operation Independent Linked to OFF setting operation operation CH2 can be set to ON OFF Data bits setting 7 bits 8 bits Parity bit not included When set to Enable Disable Enable the setting of SW4 is effective Effective only when Odd Parity Bit Enable is selected Stop bit setting 1 bit Sum check enable disable Disable setting Write during RUN enable Disable Enable Dedicated protocol disable setting Parity bit enable disable setting Even parity odd parity setting Dedicated protocol bidirectional protocol Sets mode switching and EEPROM write allow prohibit Can be set as long as Transmission 1 the total of CH1 and speed setting CH2 is within 230400 bps The factory settings are all OFF The data transmission speeds allowed to set are as follows Transmission speed unit bps 4800 9600 14400 19200 28800 38400 57600 Setting change Disable Enable enable disable prohibit allow Settings other than above are not accepted 4 Mounting and Installation This section describes the han
25. ts the general specifications contained in the user s manual of the CPU module Using this PLC in an environment outside the range of the general specifications could result in electric shock fire malfunction and damage to or deterioration of the product Be sure to shut off all phases of the external power supply used in the system before installation or cleaning Failure to do so may cause an electric shock or damage to the product Insert the fixing projection on the module bottom into the fixing hole in the base unit and mount the module using the hole as a supporting point For the Q2AS series module be sure to screw it to the base unit with the specified torque Incorrect module mounting may cause a malfunction failure or drop of the module Tighten the screws within the range of specified torque If the screws are loose it may result in fallout short circuits or malfunction Tightening the screw too far may cause damage to the screw and or the module resulting in fallout short circuits or malfunction Do not directly touch the module s conductive parts or electronic components Doing so could cause malfunction or failure in the module A 3 WIRING PRECAUTIONS A CAUTION Be sure to fix communication cables leading from the module by placing them in the duct or clamping them Cables not placed in the duct or without clamping may hang or shift allowing them to be accidentally pulled
26. which may result a module malfunction and cable damage Perform correct pressure displacement crimp contact or soldering for wire connections using the tools specified by the manufactures Attach connectors to the module securely Before connecting the cables check the type of interface to be connected Connection or erroneous wiring to the wrong interface may failure the module and external devices Tighten the terminal screws within the range of specified torque If the terminal screws are loose it may result in short circuits or malfunction Tightening the screw too far may cause damage to the screw and or the module resulting in fallout short circuits or malfunction When detecting the communication cable from the module do not pull the cable portion For cables with connectors hold the connector at the junction to the module then detach it For cables without connectors first loosen the screw at the junction then detach the cable Pulling the cable portion while it is connected to the module may cause malfunction or damage to the module and cable Be sure there are no foreign substances such as sawdust or wiring debris inside the module Such debris could cause fires failure or malfunction A 4 STARTING AND MAINTENANCE PRECAUTIONS Z WARNING Do not touch the connector while the power is on Doing so could cause malfunction Be sure to shut off all phases of the external power supply
27. witchsetting error error Transmission sequence initial status Waiting to receive command messages CHia Normal After Normal End End transmission transmitted CH JSsend status CH jreceive status Normal Command message receive completed CH jneutral status After Abnormal End transmitted Continued to next page From previous page os Related Protocol Initial Status as of LED Bidirec tional Meaning of LED ON LED OFF LED Indication ON BLINK OFF LED Name CHE After Abnormal End anter Abnormal Normal end oo End transmitted s transmission transmitted When data send Send wait status wait state generated Switch setting error mode CH Serror switching error occurrence send error receive error on demand error After start of transmission CHcjand PC CPU communications result CHrjparity sum Parity sum check error check error 2 CH jprotocol Communications error protocol error Overrun framing error CH 3SI0 error When receive data purged because OS area is full 4 The indication 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 a
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