MELSEC QnAS series
Contents
1. 1 Example of connecting external devices and QC24N by 1 1 Connection and Signal Direction Example 13 2 Example of connecting external devices and QC24N by 1 n 1 Connecting external devices and QC24N using RS 232C External device RS 232 Station 0 QC24N RS 485 Station 1 QC24N RS 485 Station n QC24N SDA SDA SDA Ry SDB SDB SDB amp sD SD RDA RDA RDA i gt lt i La RDB RDB RDB fi RD A1 RD SG SG SG FG oH FG a FG CH1 CH2 2 Connecting external devices and QC24N using RS 422 External device RS 422 Station 0 AJ71QC24N R4 RS 485 Station 1 QC24N RS 485 Station n QC24N SDA hA SDA SDA m E SDA _ SDA cal SDB SDB SDB ay SDB SDB RDA RDA RDA 1 RDA RDA cay RDB RDB RDB au FU RoB 1 RDB SG SG SG FG oo FG FG CH1 CH2 3 Connecting external devices and QC24N using RS 485 External i i Station 1 QC24 14 3 Example of connecting external devices and QC24N by m n Connecting external devices and QC24N using RS 485 External i External i device i device Paton PSiation 7 kpireti iSiation n i QC24N i i QC24N i H QC24N i 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 4 Counter2. O SWE ERR O NEU C N O ACK P S ONAK PRO O sD w SIO Oso ORD RUN OD ERR C RW OD cN NEU D PS Ack OD PRO NAK J sio sow O so D RD D CH1 CH2 Initial Related Protocol Meaning of LED ON LED OFF Status Dedi LED Name LED Display ON BLINK OFF of LED i Normal Any of ERR error C N ERROR Error batch error P S error PRO error SIO error occur sD CH end Blinks during data status transmission Cc ceive Blinks during data status reception C RW Communicating Blinks during PC communications with PC when not communicating is OFF CHrineutral status CHE End transi After start of transmission Switch setting error mode switching error send error receive error on demand error Display select switch CHEG ERR P S_ parity sum Parity sum check error Normal check error CH rotocol Communications protocol error Normal Overrun framing error nae When receive data SIO CH SIO 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 du
3. 732 0161 Hongkong amp China Ryoden International Ltd Industrial amp Electrical Controls Division 10 F Manulife Tower 169 Electric Rd North Point Hong Kong Phone 8878870 Singapore amp Malaysia MELCO Sales Singapore Pte Ltd Industrial Division 307 Alexandra Rd 05 01 02 Mitsubishi Electric Bldg Singapore 0315 Phone 4732308 Thailand F A Tech Co Ltd 1138 33 34 Rama 3 Rd Yannawa Bangkok 10120 Phone 02 295 2861 4 Australia Mitsubishi Electric Australia Pty Ltd Industrial Controls Division 348 Victoria Rd Rydalm ere N S W 2116 Phone 02 684 7200 Republic of South Africa M S A Manufacturing Pty Ltd Factory Automation Division P O Box 39733 Bramley Johannesburg 2018 Phone 011 444 8080 at MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE MITSUBISHI DENKI BLDG MARUNOUCHI TOKYO 100 TELEX J24532 CABLE MELCO TOKYO NAGOYA WORKS 1 14 YADA MINAMM 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
4. 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 WIRING PRECAUTIONS A CAUTION e 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 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 fall
5. Aa MITSUBISHI ELECTRIC MELSEC QnAS series Programmable Controller User s Manual Hardware A1SJ71QC24N R2 Art No 132280 2000 08 10 IB66815 B 13JL37 MITSUBIENI ELECTRIC EUROPE B V ACTORY AUTOMATION SAFETY PRECAUTION 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 PRECAUTIONS classify the safety precautions into two categories DANGER and CAUTION op ANGER Procedures which may lead to a dangerous condition and cause death or serious injury if not carried out properly A CAUTION Procedures which may lead to a dangerous condition and cause superficial to medium injury or physical damage only if not carried out properly i 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 the notification function is used a situation may arise in which the pager receiver cellular phone or PHS cannot be page
6. d due to the radio wave transmission conditions associated with the system installation environment or an error on the receiver side For the security of the PC system provide a separate paging circuit using a lamp indicator or buzzer sound 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 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 A CAUTION Use the PC in an environment that meets the general specifications contained in this manual Using this PC in an environmen
7. e shield of the connection cable in the following manner Connection Method __ Remark FG signal Connect to the Do not short circuit the FG connector cabinet area signal and the SG signal of the on the QC24N side connection cable Connect to the FG When the FG signal and the terminal on the external SG signal are internally device side or connected on the external connector cabinet area device side do not connect the on the QC24N side FG signal to the QC24N 10 2 When anormal 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 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 FG Shield Connector 2 Se 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 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 mod
8. eceived data SD TXD Send data below 4 DTR ER Data terminal ready 5 sG_ Signalground 6 DSR DR Data set ready e 8 cs cts Sendenabled lt e 1 A1SJ71QC24N CH1 side A1SJ71QC24N R2 CH1 side CH2 side The following type of the RS 232C connector is used The counter connector must 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 SignalName PinNo Direction Example _ Signal Name __ p ___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 QC24N side Connection and Signal External Device Signal Name PinNo Direction Example Stonel Name _Signal Name _ pt RD RXD 2 SD TXD 3 _ SD XD Po RE mR E ee ca OF Boe 7 7 e TS cscs 8 iw ca CTs b An example for DC code control Full duplex communications QC24N Side Connection and Signal External Device Signal Name Pin No Direction Example Signal Name _Signal Name oo woro SD TXD 3 SD TD onen 4 DTR ER 3 RS RTS _cs cis 8 je CS CTS 3 Precaution when performing connections 1 Handle the FG signal and th
9. em TA 11 5 2 Connecting RS 422 485 Line The standard connection procedure for RS 422 485 line is explained below 7 Signal Direction Signal g Signal Name QC24N 1 lt gt Code y External Device Send data Send data we 8 _RDB Received data lt _SG_ Signalground lt FG Frame ground e gt FG Frame ground 2 1 A1SJ71QC24N CH2 side A1SJ71QC24N R2_ None Function block diagram for the QC24N side o SDA Send data k 4 SDB Q 4 I o RDA Received data a RDB WHT If the QC24nN 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 e For RS 422 communication 330 Q 1 4 W e 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 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 B in the wiring diagram below indicates the connection of a terminal resistor
10. he 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 88N cm 6 to 9kgf cm M3 5 screws 5 2 to 7 8lb inch Module installation screws M4 screws 78 to 118N cm 8 to 12kgf cm 6 9 to 10 4lb inch RS 422 485 terminal block installation screw 39 to 59N cm 4 to 6kgf cm M3 screws 3 5 to 5 2lb inch RS 232C connector installation screw 19 to 24N cm 1 9 to 2 4kgf cm M2 6 screws 1 7 to 2 0lb sinch 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 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 External Wiring Connecting RS 232C Line The standard connection procedure for RS 232C line is explained A Signal Direction l pa Signal Name QC24N 1 lt gt External Device Receive carrier detection RD RXD R
11. in the QC24N 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 anormal data communication cannot be performed because of external noise even though the wiring has been made as above perform the wiring as follows 16 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 SDA 4 k ae RD SDB RD RD 4 n SDA Ro H L sp sa sG FG lt 7 FG FG 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 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 con
12. l 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 A1SJ71QC24N A1SJ71QC24N R2 Applicability of modem function of modem function Usable Interface that can be used modem RS 232C RS 232C function Linked mode between CH1 and U bl Transmission speed 38400 19200 9600 4800 2400 1200 unit bps 115200 57600 28800 14400 The total of CH1 and CH2 must be within 115200 bps RS CS control yes no Selection Applicability of data Non procedure a os A Communication enabled communi protocol cation Communication with link dedicated Communication disabl instruction Line connection QC24N Modem 1 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 Name of Each Part and Setting 3302 Orange Orange Brown 1102 Brown Brown Brown 1 Seal showing the Example A B module hardware version and software version oe Shows that the software version is B 1 LED Display Shows that the hardware version is A The display LEDs indicate the data communication status operating status error status of the QC24N O ERROR
13. measure 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 7k Q1 4W Terminal RDB resistor Received data 4 7k Q1 4W External device 15 When there is a pull up or pull down resistor at the external device erroneous data is not received The following describes the case when a pultup 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
14. n when the QC24N modem function is not used Specifications A1SJ71QC24N A1SJ71QC24N R2 RS 232C RS 232C RS 232C oat Full duplex Half duplex Communications system Only RS 232C interface is selectable Synchronous system Asynchronous system Specifications A1SJ71QC24N A1SJ71QC24N R2 Transmission speed 38400 19200 9600 4800 2400 1200 600 300 Unit bps 115200 57600 28800 14400 The total of CH1 and CH2 must be within 115200 bps Start bit Data format Data bit Parity bit 1 yes 0 no Stop bit Error Parity chec Yes odd even No detection Transmission DTR DSR Yes Only RS 232C interface is selectable No control DC code Yes DC1 DC3 DC2 DC4 No Writing to EEPROM 100 000 times for the same area Max Dedicated protoco 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 protocol Linked as in Communication disable mode protoco with internal mode Bi ji Communication disable protocol with internal mode 15m 49 2ft or less RS 422 485 1200m 3937 0ft or less Power consumption 32 points 1 0 296 0 65 0 258 0 57 1 Set special 32 points when allocating I O by GPP function Set AJ71QC24 as a model name registration when using dedicated command 2 2 When the Modem Function is Used The table below lists the transmission specification between QC24N and modem termina
15. nected 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 A1SJ71QC24N R2 Arssricczan an B 130 eA 6 5 93 6 26 2 34 5 0 26 3 69 1 03 1 36 m 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 A1SJ71QC24N R2 outline dimensions of all two models are the same The illustration above shows the outline dimensions of the A1SJ71QC24N 18 roy The United States Mitsubishi Electronics America Inc Industrial Automation Division 800 Biemann Court Mt Prospect IL 60056 Phone 708 298 9223 Canada Mitsubishi Electric Sales Canada Inc Industrial Automation Division 4299 14th Avenue Markham Ontario L3R OJ2 Phone 416 475 7728 United Kingdom Mitsubishi Electric UK Ltd Industrial Sales Division Travellers Lane Hatfield Herts AL10 8XB Phone 0707 276100 Germany Mitsubishi Electric Europe GmbH Industrial Automation Division Gothaer Strasse 8 Postfach 1548 D 4030 Ratingen 1 Phone 02102 4860 Taiwan Setsuyo Enterprise Co Ltd 106 11th FI Chung Ling Bldg 363 Sec 2 Fu Hsing S Rd Taipei Taiwan R O C Phone 02
16. out 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 CAUTION e Do not 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 A CAUTION e Before 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 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 sta
17. ring data communication via the dedicated protocol Station Switch Description Details 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 3 Mode switch setting Not necessary to set the station numbers in connect order Station numbers can also be skipped The factory setting is 00 Set data communication functions for each interface Mode Mod Switch Switch Details No 7 8 D E F 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 ASCII Dedicated protocol mode Format 5 Non procedure protocol Bidirectional protocol 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 Swi Switch State Details OFF z Set CH1 to OFF Operation setting psec Laken ri CH2 can be set to operat operation ONOFF Data bits setting Parity bi
18. t not included Parity bit enable H When set to Enable the Even parity Effective only when Parity odd parity setting Bit Enable is selected SW5 Stopbitseting 1bt 2bits Sum check enable Dedicated protocol disable setting bidirectional protocol Write during RUN SW7 enable disable Disable Enable Dedicated protocol etting SwW9 a Can be set as long as the to Tamisa 61 total of CH1 and CH2 is sw12 9 within 115200 BPS Setting change ble Enable itch K r EEPROM write enable disable prohibit allow allow prohibit The factory settings are all OFF 1 The data transmission speeds allowed to set are as follows Settings other than above are not accepted The transmission specification setting switch shown above is located on the modules whose hardware versions are B 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 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 Handling Precautions This section describes the module handling precautions 1 T
19. t 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 crimp contact or soldering for wire connections using the tools specified by the manufactures Attach connectors to the module securely WIRING PRECAUTIONS CAUTION e 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
20. tion 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 A CAUTION e When disposing of this product treat it as industrial waste Table of Contents About This Manual 1 Overview wel 2 Transmission Specifications 1 1 2 1 When the Modem Function is not Used 2 2 When the Modem Function is USe0 cceeeceeeereeeeeeeeee 3 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 M IN anual mames Model Code Serial Communications Module Guidebook IB 66622 13JF11 Serial Communications Module User s Manual IB 66612 C or later 13J825 Computer Link Guidebook SH 3510 13JE76 Computer Link Multidrop Link Module User s Manual SH 3511 Computer Link Function Printer Function 13JE77 Please read Serial Communications Module User s Man
21. ual 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 2 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 __ Modei Product Name A1SJ71QC24N serial communications module RS 422 communication terminal resistor 330Q A1SJ71QC24N RS 485 communication terminal resistor 1109 1 2W brown brown brown A1SJ71QC24N R2 serial communication module Unless there is a need to identify each device all of the modules are referred to as QC24N How to discriminate between the terminating resistors 330Q Orange Orange Brown 1102 Brown Brown Brown Transmission Specifications The transmission specifications of the QC24N is shown below Refer to CPU module User s Manual for QC24N general specification When the Modem Function is not Used The table below lists the transmission specificatio
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