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Mitsubishi Electric LE7-40GU User Manual

Mitsubishi Electric LE7-40GU
154 pages
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LE7-40GU
INSTRUCTION MANUAL (Communication)

Table of Contents

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Mitsubishi Electric LE7-40GU Specifications

General IconGeneral
BrandMitsubishi Electric
ModelLE7-40GU
CategoryController
LanguageEnglish

Summary

SAFETY PRECAUTIONS

[DESIGN PRECAUTIONS]

Precautions related to product design and installation for safety.

[INSTALLATION PRECAUTIONS]

WARNING

Cut off power supply before installation/wiring to prevent electric shock or damage.

[WIRING PRECAUTIONS]

WARNING

Ensure proper wiring to terminal blocks to prevent electric shock and equipment failure.

[STARTUP AND MAINTENANCE PRECAUTIONS]

CAUTION

Do not disassemble or modify the product; turn off power before connecting/disconnecting cables.

[DISPOSAL PRECAUTIONS]

CAUTION

Contact certified electronic waste disposal company for safe recycling and disposal.

INTRODUCTION

Regarding use of this product

General purpose part, not for human life systems. Consult Mitsubishi Electric for special applications.

RELEVANT MANUALS

TERMS

Defines terms used in the manual for clarity and consistency.

CHAPTER 1 OUTLINE OF COMMUNICATION FUNCTION

1.1 Communication with a Personal Computer (GT Designer 3 and Data Transfer Tool)

Details on connecting LE7-40GU to PC via USB or Ethernet for screen data transfer.

1.2 Ethernet Communication

CC-Link IE Field Network Basic communication

LE7-40GU supports slave functionality for CC-Link IE Field Network Basic communication.

1.3 RS-485 Communication

N:N Network

LE7-40GU operates as a local station for FX PLC N:N network communication.

1.4 CC-Link Communication

Precautions

RS-485 communication and CC-Link communication cannot be used simultaneously.

CHAPTER 2 COMMUNICATION WITH A PERSONAL COMPUTER (GT DESIGNER3, DATA TRANSFER TOOL)

2.1 USB Connection

Details of system configuration and communication specifications for USB connection.

2.2 Ethernet Connection

Communication specifications

Details of transmission speed, interface, segment length, and supported protocols for Ethernet.

CHAPTER 3 CC-LINK IE FIELD NETWORK BASIC COMMUNICATION

3.1 System Configuration

Diagrams and tables showing system configuration for CC-Link IE Field Network connections.

3.2 Communication Setting

Communication parameter settings

Procedure for setting communication parameters using Data Transfer Tool.

Setting with GT Designer3 (GOT2000)

Controller Setting

Details for configuring controller settings in GT Designer3.

Link data configuration

Remote input/output

Details of remote input/output points and their signal names.

Remote register

CC-Link IE Field Network Basic master stationLE7-40GU

Register configuration for master to slave communication.

Continuous setting/continuous monitoring

Continuous settings

Procedure to set and monitor data continuously.

Access by request command

Request code

Numerical values for parameters corresponding to request codes.

CHAPTER 4 SLMP COMMUNICATION

4.1 System Configuration

Diagrams and precautions for SLMP communication system configuration.

4.2 Communication Setting

Communication parameter settings

Procedure for setting SLMP communication parameters using Data Transfer Tool.

Setting with GT Designer3 (GOT2000)

Controller Setting

Details for configuring controller settings for SLMP communication in GT Designer3.

Link data configuration

Station Number command

Determine station No. of LE7-40GU for access by station No. command.

Access by request command

Request code

Numerical values for parameters corresponding to request codes.

CHAPTER 5 MODBUS/TCP (SLAVE)

5.1 System Configuration

Diagrams and precautions for MODBUS/TCP communication system configuration.

5.2 Communication Setting

Communication parameter settings

Procedure for setting MODBUS/TCP communication parameters using Data Transfer Tool.

Setting with GT Designer3 (GOT2000)

Controller Setting

Details for configuring controller settings for MODBUS/TCP communication in GT Designer3.

Bit device

Input relay (1) (Master stationSlave station)

Details of input relay bits for master to slave communication.

Coil (0) (Slave stationMaster station)

Data copy execution

Details of signal names for data copy execution.

Word device

Holding register (4) (Master stationSlave station)

Details of holding registers for master to slave communication.

Input register (3) (Slave stationMaster station)

Function code

Supported MODBUS function codes and their descriptions.

Continuous setting/continuous monitoring

Continuous settings

Procedure to set and monitor data continuously.

Access by request command

Request code

Numerical values for parameters corresponding to request codes.

CHAPTER 6 N:N NETWORK

6.1 System Configuration

Diagrams and precautions for N:N Network system configuration.

6.2 Wiring

Selection of cable

Procedure to select appropriate cables for N:N Network wiring.

Terminating resistor settings

LE7-40GU (Left side)

Diagram showing terminating resistor selector on the LE7-40GU.

Connection diagram

One-pair wiring (master station: FX series PLC)

Wiring example for one-pair connection with FX series PLC master.

Grounding

Perform Class D grounding.

Guidelines for performing Class D grounding with resistance of 100  or less.

6.3 Communication Setting

Communication specifications

Details of transmission standard, channels, wiring method, and baud rate for N:N Network.

Link pattern

Communication parameter settings

Procedure for setting communication parameters for N:N Network.

Link data configuration

Device M configuration of the master station

Details of device M configuration for the master station.

Device M configuration of the local station

Station Number command

Determine station No. of local station for master station access.

Access by request command

Request code

Numerical values for parameters corresponding to request codes.

CHAPTER 7 MODBUS/RTU, ASCII (SLAVE)

7.1 System Configuration

Diagrams and precautions for MODBUS/RTU/ASCII system configuration.

7.2 Wiring

Selection of cable

Procedure to select appropriate cables for RS-485 communication.

Spring clamp terminal block

Wire size

Table specifying wire sizes and compatible ferrules for terminal blocks.

Connection and disconnection of the cable

Connection of the cable

Procedure for inserting cables into push-in type terminal blocks.

Terminating resistor settings

LE7-40GU (Left side)

Diagram showing terminating resistor selector on the LE7-40GU.

Connection diagram

One-pair wiring (master station: FX series PLC)

Wiring example for one-pair connection with FX series PLC master.

Grounding

Perform Class D grounding.

Guidelines for performing Class D grounding with resistance of 100  or less.

7.3 Communication Setting

Communication specifications

Details of transmission standard, channels, wiring method, and baud rate for MODBUS/RTU/ASCII.

Used coil/holding register

Coil (bit data)

Areas for master-slave coil communication and status monitoring.

Frame specifications

Frame mode

Description of RTU and ASCII frame modes for MODBUS communication.

List of supported MODBUS standard functions

Function code

Table of supported MODBUS functions, descriptions, and accessible devices.

Communication parameter settings

Communication setting procedure

Steps to configure communication parameters for MODBUS/RTU/ASCII.

Data exchange between the master station and the slave station

Coil (bit data)

Configuration of coils for master-slave and slave-master communication.

Request code

Request code

Numerical values for parameters corresponding to request codes.

6.4 Reference Program

System configuration

Diagram showing system configuration for N:N Network.

Setting

Basic settings

Basic configuration settings for N:N Network communication.

Link device

SM/SD setting

Configuration for SM/SD settings related to N:N Network.

Program example

Using method of ladder

Explanation of ladder logic usage for N:N Network programming.

7.4 Reference Program

System configuration

Diagram showing system configuration for MODBUS/RTU/ASCII communication.

Setting

Basic settings

Basic configuration settings for MODBUS/RTU/ASCII communication.

Modbus device assignment

SM/SD setting

Configuration for SM/SD settings related to MODBUS/RTU/ASCII.

Program example

Using method of ladder

Explanation of ladder logic usage for MODBUS/RTU/ASCII programming.

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