Daudin Io-grid M And Fx5u Modbus Rtu User Manual

• Command functions are listed below:

  Station No.	Function code	Register for reading	Data Amount for Reading	Register for storage	Initial address of the command execution
  01	03	10 00	00 01

• Command functions are listed below:

  Station No.	Function code	Register for writing	Data Amount for Writing	Register for reading	Initial address of the command execution
  01	10	20 00	00 02

2302EN V2.0.0
and FX5U Modbus RTU Connection
Operating Manual

Table of Contents

1.

Remote I/O Module System Configuration List ………………………………………………………… 3

1.1 Product Description……………………………………………………………………………………………….. 3

2.

MLESEC-FX5U Connection Setup …………………………………………………………………………. 4

2.1 FX5U Hardware Connection ………………………………………………………………………………….. 4

2.2 FX5U Connection Setup ………………………………………………………………………………………… 6

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1. Remote I/O Module System Configuration List

Part No.

Specification

GFMS-RM01S Master Modbus RTU, 1 Port

GFDI-RM01N Digital Input 16 Channel

GFDO-RM01N Digital Output 16 Channel / 0.5A

GFPS-0202 Power 24V / 48W

GFPS-0303 Power 5V / 20W

0170-0101 8 pin RJ45 female connector/RS-485 Interface

Description
Main Controller Digital Input Digital Output Power Supply Power Supply Interface Module

1.1 Product Description
I. The interface module is used externally to convert FX5U’s communication module (Modbus RTU) to a RJ45 connector
II. The main controller is in charge of the management and dynamic configuration of I/O parameters and so on.
III. The power module and interface module are standard for remote I/Os and users can choose the model or brand they prefer.

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2. MLESEC-FX5U Connection Setup

This section details how to use the GX Works3 software to connect FX5U and

. For more

details, please refer to the “Commands/Universal FUN/FB” chapter of the MELSEC iQ-F FX5

Programming Manual

2.1 FX5U Hardware Connection
I. The connector is on the left side of the FX5U and uses RS485 connections

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II. Connect the COM (RS485 A, B) on the left of the FX5U to the interface module (1/2) to convert it to a RJ45 connector before connecting it to the main controller
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2.2 FX5U Connection Setup
I. Launch GX Works3 and select the “Parameters” menu from the “Navigate” on the left side, then click on “485 Connector” under the “Module Parameters” menu
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II. Set up the communication format in “Protocol Format”
From the drop-down menu, select “MODBUS_RTU Communication” From the drop-down menu, select “None” From the drop-down menu, select “1bit” From the drop-down menu, select “Equipment Baud” The communication format setting must be consistent with
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III. Reading of the communication register

Command functions are listed below:

Station No. Function Register for

code

reading

Data Amount for
Reading

Register for storage

Initial address of the command execution

This line of code is equivalent to Modbus Function Code

Station No. 01

Function code 03

Register for reading 10 00

Data Amount for Reading 00 01

IV. Writing of the communication register

I. Command functions are listed below:

Station No. Function Register for

code

writing

Data Amount
for Writing

Register for reading

Initial address of the command execution

Station No. 01

This line of code is equivalent to Modbus Function Code

Function code 10

Register for writing 20 00

Data Amount for Writing 00 02

Notes: iO-GRID ‘s first GFDI-RM01N has the register address at 1000(HEX) iO-GRID ‘s first GFDO-RM01N has the register address at 2000(HEX)

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V. Programming Example:
Control with one GFDI-RM01N and one GFDO-RM01N When DI_1000.0 has received a signal and is triggered, DO_2000.0 will output a signal as it is connected
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