Mitsubishi Electric FX3U Series PLC and GX IEC Developer Connection Guide

About this manual

This user manual provides step-by-step instructions for establishing remote connections between a PC running the GX IEC Developer software and Mitsubishi Electric FX3U series PLCs. The guide covers two primary connection methods: Ethernet and Serial Port (RS232/RS422). It details the configuration of IP addresses, communication ports within the SiteManager and LinkManager tools, and verification procedures to ensure successful data transfer. This manual is written in Chinese.

What's inside

• Ethernet Connection
• Serial Port Connection
• VMware Virtual Machine Setup
• LinkManager Configuration
• GX IEC Developer Settings
• IP Address Verification
• COM Port Management

Frequently asked questions

What is the default IP address for a Mitsubishi FX3U PLC if it has not been configured?

The factory default IP address is 192.168.1.254 with a subnet mask of 255.255.255.0.

What are the default serial communication settings for a Mitsubishi FX3U PLC?

The default settings are 7-bit data, even parity, 1 stop bit, and a baud rate of 9600.

What is the recommended transmission speed for stable serial communication?

It is suggested to lower the transmission speed to 9.6Kbps.