Mitsubishi Electric Q Series MELSECNET/H Network System Reference Manual

About this manual

This manual provides a complete reference for the MELSECNET/H network system used with Mitsubishi Electric Q series PLCs. It describes the system architecture, including single, dual, and multi‑network configurations, and lists the supported network modules.

The document also details installation steps, parameter settings, programming functions, and fault‑diagnosis procedures, with appendices that compare module specifications and show wiring diagrams. This manual is written in Chinese.

What's inside

• Overview
• System Architecture
• Specifications
• Setup and Installation
• Parameter Settings
• Programming
• Application Functions
• Fault Diagnosis
• Appendices

Frequently asked questions

How do you set the station number for a network module?

Set the station number (STATION NO.) as described in section 4.3.1 of the manual.

What test can be performed to check module communication offline?

Use the self Loopback test (自我 Loopback 測試) described in section 4.5.1.