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Mitsubishi Electric MELSEC iQ-RJ71C24-R2 User Manual

Mitsubishi Electric MELSEC iQ-RJ71C24-R2
574 pages
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MELSEC iQ-R Serial Communication Module
User's Manual (Application)
-RJ71C24
-RJ71C24-R2
-RJ71C24-R4

Table of Contents

Other manuals for Mitsubishi Electric MELSEC iQ-RJ71C24-R2

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Mitsubishi Electric MELSEC iQ-RJ71C24-R2 Specifications

General IconGeneral
TypeCommunication Module
Product TypeCommunication Module
Compatible SeriesMELSEC iQ-R Series
SeriesiQ-R
Number of Ports2
Number of Channels2
Power Supply Voltage5 VDC
Weight0.2 kg
Operating Temperature0 to 55 °C
Storage Temperature-25 to 75 °C
Operating Humidity5 to 95% RH (non-condensing)
Dielectric Strength500 V AC for 1 minute
Product CategoryController
InterfaceRS-232/RS-422/RS-485
Communication StandardRS-232/RS-422/RS-485
Protocols SupportedMELSEC Communication Protocol
Dimensions27.6 mm x 98 mm x 90 mm
Vibration Resistance5 to 9 Hz, amplitude 3.5 mm; 9 to 150 Hz, acceleration 9.8 m/s²
Shock Resistance147 m/s², 3 times in each of 3 axes
Noise Immunity1500 Vp-p
Insulation Resistance10 MΩ or more at 500 VDC

Summary

Safety Precautions

Design Precautions

Warning

Indicates hazardous conditions that may result in death or severe injury if handled incorrectly.

Installation Precautions

Warning

Shut off external power supply before mounting or removing the module to prevent electric shock.

Wiring Precautions

Caution

Ground FG and LG terminals with resistance of 100 ohms or less to prevent electric shock or malfunction.

Startup and Maintenance Precautions

Warning

Do not touch any terminal while power is on to prevent electric shock or malfunction.

Operation Precautions

Caution

Handle modules carefully to avoid static electricity discharge, which may cause failure or malfunction.

Disposal Precautions

Caution

Treat the product as industrial waste and dispose of batteries separately according to local regulations.

Transportation Precautions

Caution

Follow transportation regulations for lithium batteries and consider disinfection methods for packaging to prevent product failure.

Conditions of Use for the Product

Introduction

Part 1 Basic Functions

Chapter 1 Data Communication Using MC Protocol

Explains how to read/write device data and programs to/from the CPU module via C24 using MC protocol.

Chapter 2 Data Communication Using Predefined Protocol

Describes data transmission/reception using protocols appropriate to the target device.

Chapter 3 Data Communication Using Nonprocedural Protocol

Explains arbitrary data format and transmission control procedure for data communication between CPU and target device.

Chapter 4 Data Communication Using Bidirectional Protocol

Explains data transfer between target device and CPU using data format and transmission control for bidirectional protocol.

Chapter 5 Debug Support Function

Supports debugging of communication processing between C24 and target device.

Part 2 Additional Functions

Chapter 6 Using the Programmable Controller CPU Monitoring Function

Explains CPU monitoring function where C24 monitors the controller CPU based on user-registered monitoring info.

Chapter 7 Communications by the Modem Function

Explains the modem function for data communication with remote target devices via public lines.

Chapter 8 Receiving Data with an Interrupt Program

Explains data reception using an interrupt program for nonprocedural or bidirectional protocol communication.

Chapter 9 Changing Data Length Units to Byte Units (Word/Byte Units Setting)

Explains how to change data length units (word to byte, byte to word) for data communication.

Chapter 10 Changing Data Communication Monitoring Time

Explains monitoring time for receiving interval, CPU processing, and transmission.

Chapter 11 Data Communications Using DC Code Transmission Control

Explains transmission control function for C24 and target device using DC codes.

Chapter 12 Data Communications Using Half-Duplex Communications

Explains settings to prevent simultaneous transmission for half-duplex communications via RS-232 interface.

Chapter 13 Contents and Registration of User Frames for Data Communication

Explains data that can be registered, contents transmitted/received, and how C24 handles user frames.

Chapter 14 On-Demand Data Communications Using User Frames

Explains transmission of data specified by CPU module using message format other than standard formats.

Chapter 15 Data Communications Using User Frames

Explains data transmission/reception methods and procedures when communication data using user frames with nonprocedural protocol.

Chapter 16 Transparent Codes and Additional Codes

Explains handling of transparent codes and additional codes during data communication using nonprocedural or bidirectional protocol.

Chapter 17 Communicating with ASCII Code (ASCII-BIN Conversion)

Explains ASCII-binary conversion for transmitting/receiving data in ASCII code to/from a target device.

Chapter 18 Data Communications Between Target Device and CPU Module in M:N Basis

Explains data communications between target devices and CPU module by multidrop connection.

Chapter 19 Switching the Mode After Starting

Forcefully switches communication protocol and transmission specifications of a designated interface.

Chapter 20 Using Send/Receive Data Monitoring Function

Describes C24 send/receive data monitoring function for debugging programs.

Chapter 21 Independent/Linked Operation of Interface

Explains the independent and linked operation of C24 interfaces.

Chapter 22 Parameter Registration to CPU Module

Explains how C24 enables parameter settings to be saved in the CPU module.

Chapter 23 RS-422/485 Interface Echo Back Enable/Prohibit Specification

Explains the echo back enable/prohibit specification for RS-422/485 interface.

Chapter 24 Erroneous Noise Signal Reception Prevention Function

Explains the erroneous noise signal reception prevention function of C24.

Chapter 25 Automatic Removal of NULL Characters Included in Send Data

Explains the automatic removal of NULL characters in data transmission of C24.

Part 3 Parameter Settings and Troubleshooting

Chapter 26 Parameter Setting

Explains parameter settings necessary for data communication between C24 and a target device.

Chapter 27 Troubleshooting

Explains errors that may occur and their corrective actions.

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