This manual introduces the GT03 programmable graphic display unit, which serves as a configurable visual interface for PLCs. It describes the main features such as LED‑backlit STN LCD, 24‑character × 4‑line display, selectable RS‑232C/RS‑485 communication, and up to 128 KB of user program storage.
The document details hardware specifications, pin definitions, and connector diagrams, followed by step‑by‑step guidance for installing and using the Windows‑based programming tool. It also explains key functions, password protection, alarm handling, and how to upload or download screen data to the device. This manual is written in Chinese.
| Operating temperature | 0℃～50℃ |
|---|---|
| Storage temperature | -20℃～70℃ |
| Power supply voltage | DC 24V‑DC 28V |
| Power consumption | < 4 W (typical 2 W) |
| Communication speed | 9600 bps |
| Communication protocol | 9600bps/ODD/8/1 |
| Dimensions | 164 mm × 90 mm × 62 mm |
| Front surface protection | IP54 equivalent |
| Maximum user program storage | 128 KB |
The GT03 can use either an RS‑232C or an RS‑485 serial port, but the two ports cannot be used simultaneously.
The unit has 13 keys in total: 8 basic keys and 5 keys that can be programmed for custom functions.
The GT03 consumes less than 4 W, with a typical value of about 2 W.
Yes, it supports both a download password and an operation password to protect data and settings.