Mitsubishi Q Series Computer Link Manual

About this manual

This manual provides the wiring diagrams and connection instructions for Mitsubishi Q Series Human‑Machine Interface (HMI) controllers. It covers default communication settings, RS‑232 and RS‑422 pin assignments, and the address definitions for registers, relays, and timers.

The document also explains how to configure communication parameters using GX Developer software and notes address alignment requirements (multiples of 16 and optional offset of 9000). This manual is written in Chinese.

What's inside

• Connection Overview
• RS‑232 Wiring
• RS‑422 Wiring
• Default Communication Settings
• Register and Relay Address Definitions

Specifications

Frequently asked questions

What are the default communication parameters for the Q Series controller?

The defaults are 19200 baud, 8 data bits, no parity, and 1 stop bit.

How is the RS‑232 connection wired between the controller and the DOP unit?

Connect RXD on the controller to TXD on the DOP, TXD to RXD, GND to GND, and use the SG, RTS, CTS, and DSR pins as shown in the diagram.

What address alignment rules must be followed for register addresses?

All component addresses must be multiples of 16, or multiples of 16 plus 9000 for special registers.