The controller includes two RS-485 ports that can be used for a Modbus RTU client.
| Terminal | Function | Description |
|---|---|---|
| 33 | DATA + (A) | Port 1 Modbus RTU (RS-485) |
| 34 | DATA (GND) | |
| 35 | DATA - (B) | |
| 36 | DATA + (A) | Port 2 Modbus RTU (RS-485) |
| 37 | DATA (GND) | |
| 38 | DATA - (B) |
Fastpath: See Modbus RS-485 in the Installation instructions for
wiring recommendations and requirements.
These are the RS-485 hardware settings:
- 9600, 19200, 38400 or 115200 bps
- 8 data bits
- None parity
- 1 stop bit
- No flow control