Mitsubishi A1SJ71QC24N1 User Manual
  1. Manuals
  2. Brands
  3. Mitsubishi Manuals
  4. Control Unit
  5. MELSEC A1SJ71QC24N1
  6. User manual

Mitsubishi A1SJ71QC24N1 User Manual

Serial communication module
Hide thumbs Also See for A1SJ71QC24N1:
Table of Contents

Advertisement

Quick Links

Download this manual
Serial Communication
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.
©2005 MITSUBISHI ELECTRIC CORPORATION
User's Manual
A1SJ71QC24N1
A1SJ71QC24N1-R2
MODEL A1SJ71QC24N1-U-HW
MODEL
CODE
IB(NA)-0800330-A(0512)MEE
Module
(Hardware)
13JP85

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the A1SJ71QC24N1 and is the answer not in the manual?

Questions and answers

Related Manuals for Mitsubishi A1SJ71QC24N1

Summary of Contents for Mitsubishi A1SJ71QC24N1

  • Page 1 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 MODEL...

  • Page 2: Safety Precautions

    SAFETY PRECAUTIONS (Always read these instructions before using this equipment.) Before using this product, please read this manual and the relevant manuals introduced in this manual carefully and pay full attention to safety to handle the product correctly. These precautions apply only to this product. For the PLC system safety precautions, refer to the user’s manual of your CPU module.
  • Page 3 [DESIGN PRECAUTIONS] 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. [INSTALLATION PRECAUTIONS] CAUTION Use the PLC in an environment that meets the general specifications...
  • Page 4 [WIRING PRECAUTIONS] 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, which may result a module malfunction and cable damage.
  • Page 5 [STARTING AND MAINTENANCE PRECAUTIONS] 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.
  • Page 6 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.

  • Page 7: Table Of Contents

    CONTENTS 1. Overview ......................1 2. Transmission Specifications................2 2.1 When the Modem Function is not Used ............2 2.2 When the Modem Function is Used ............3 3. Part Names And Setting.................4 4. Mounting and Installation ................9 4.1 Handling Precautions................9 4.2 Installation Environment ................9 5.
  • Page 8 (13JE77) Conformation to the EMC Directive and Low Voltage Instruction For details on making Mitsubishi PLC 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 CPU module to use or that of the PLC CPU included with base unit.

  • Page 9: Overview

    When unpacking the module, check that the products listed in the table below are present. Model Product name Quantity A1SJ71QC24N1 serial communication module RS-422 communication terminal resistor A1SJ71QC24N1 330Ω, 1/4W (orange/orange/brown/ )* RS-485 communication terminal resistor 110Ω, 1/2W (brown/brown/brown/ )*...

  • Page 10: Transmission Specifications

    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 Item A1SJ71QC24N1 A1SJ71QC24N1-R2 RS-232C RS-232C Interface RS-422/485...

  • Page 11: When The Modem Function Is Used

    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 Item A1SJ71QC24N1 A1SJ71QC24N1-R2 Applicability of modem function Usable Interface that can be used modem...

  • Page 12: Part Names And Setting

    3. Part Names And Setting • A1SJ71QC24N1 • A1SJ71QC24N1-R2 1SJ71QC24N1 1SJ71QC24N1-R2 ERR. LED Indication LED Indication Module version Module version sticker (*1) sticker (*1) DISPLAY DISPLAY LED indication LED indication ERR. ERR. switch switch STATION NO. Station No. STATION NO.
  • Page 13 (1) LED Indication The LEDs indicate the data communication status, operating status, error status of the QC24N. ERROR ERR. C R/W SW.E ERR. NEU. NEU. ACK. ACK. PRO. PRO. SD W SD W Related Protocol Initial Meaning of LED ON LED OFF LED Name Status...
  • Page 14 (From previous page) Related Protocol Initial Meaning of LED ON LED OFF LED Name Status Dedi- Bidirec- LED Indication (ON/BLINK) (OFF) proce- of LED cated tional dure Switch setting error, mode CH error switching error, ERR. Normal occurrence send error, receive error, on-demand error CH and PC CPU...
  • Page 15 (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 Details Description (1) Station number of the local QC24N is set from 0 to 31.
  • Page 16 (4) Transmission specifications switch setting Set specifications for the communication with the data communication destination device, as well as other items. Switch Switch State Switch Details Setting Item Notes CH1 CH2 Be sure to set the CH1 Independent Linked to OFF. Operation setting operation operation...

  • Page 17: Mounting And Installation

    4. 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.

  • Page 18: External Wiring

    RS (RTS) Send request CS (CTS) Send enabled *1 A1SJ71QC24N1 : CH1 side A1SJ71QC24N1-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)
  • Page 19 (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 Direction (Example) Signal Name Pin No.
  • Page 20 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.

  • Page 21: Connecting Rs-422/485 Line

    (FG) Frame ground *1 A1SJ71QC24N1 : CH2 side A1SJ71QC24N1-R2 : (None) Point If 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.
  • Page 22 (1) Example of connecting external devices and QC24N by 1:1 External Connection and Signal QC24N Side Device Direction (Example) Signal Name Signal Name (FG) (FG) (2) Example of connecting external devices and QC24N by 1:n 1) Connecting external devices and QC24N using RS-232C External Station 0 Station 1...
  • Page 23 3) Connecting external devices and QC24N using RS-485 External RS-485 Station 0 RS-485 Station 1 RS-485 Station n device QC24N QC24N QC24N FG (CH2) (3) Example of connecting external devices and QC24N by m: n * Connecting external devices and QC24N using RS-485 External External device...
  • Page 24 (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 4.7kΩ, 1/4 W as a reference of resistor value).
  • Page 25 (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.

  • Page 26: External Dimensions

    6. External Dimensions (1) A1SJ71QC24N1 1SJ71QC24N1 DISPLAY ERR. STATION NO. MODE CH2 RS-422/485 (FG) (FG) CH1 RS-232-C A1SJ71QC24N1 93.6 26.2 34.5 (0.26) (3.69) (1.03) (1.36) (Unit: mm (inch)) R1 (bend radius near terminal board) : Outside cable diameter 4 R2 (bend radius near connector)
  • Page 27 (2) A1SJ71QC24N1-R2 1SJ71QC24N1-R2 DISPLAY ERR. STATION NO. MODE RS-232-C A1SJ71QC24N1-R2 RS-232-C 93.6 34.5 (0.26) (3.69) (0.14) (1.36) (Unit: mm (inch)) R2 (bend radius near connector): Outside cable diameter 4...
  • Page 28 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;...

This manual is also suitable for:

A1sj71qc24n1-r2

Table of Contents