The Shenyang Guangcheng Technology GCAN-PLC-400 User Manual provides installation, wiring, programming and communication details for the programmable bus…
The GCAN-PLC-400 is a compact programmable controller that integrates PLC functions with CAN, Ethernet and RS‑232 interfaces. It can be combined with up to 32 GC‑series I/O modules to build a distributed control node.
This manual covers functional overview, mechanical installation, wiring diagrams, communication setup (CANopen and Modbus), programming with OpenPCS software, technical specifications, and service information. This manual is written in Chinese.
| Power supply | 24 VDC (‑15%/+20%) |
|---|---|
| Input current | 70 mA+ (total GC‑bus) / max 2.5 A |
| Startup current | ≈2.5 × continuous current |
| Protection rating | IP20 |
| Operating temperature | -40 °C to +85 °C |
| Dimensions | 100 mm × 69 mm × 48 mm |
| Communication interfaces | 1 CAN, 1 Ethernet, 1 RS‑232 |
| Maximum I/O modules | 32 modules (up to 32 × 8 I/O points) |
| Digital I/O signals | 256 inputs/outputs |
| Analog I/O signals | 64 inputs/outputs |
It supports CANopen (master or slave) and Modbus RTU/TCP (master or slave).
Up to 32 GC‑series modules can be connected, providing a maximum of 32 × 8 I/O points.
The controller requires a 24 VDC supply (‑15%/+20%) with an input current of 70 mA+ (total bus) up to 2.5 A and a startup current about 2.5 times the continuous current.
It uses a self‑locking mechanism; the unit clicks into place on the rail and can be released by rotating the orange knob.