Supported Devices
| Device Type | Modbus TCP (Ethernet) | RS485 |
|---|---|---|
| UPM209 | ✅ | ✅ |
Wiring
Ethernet
For correct ethernet wiring: Follow the the guidelines for ethernet wiring.
RS485
RS485 Wiring
- For correct RS485 wiring: Follow the guidelines for RS485 wiring.
- If the wiring shown in the table below is incorrect, please let us know.
- There is no general consensus in the industry about the usage of A and B for the RS485 polarity, so it may be counterintuitive and opposite of what you might expect for some devices.
| Device | SmartgridOne Controller model OM1 | SmartgridOne Controller model IG8 | RS485-USB converter | RS485-Ethernet converter |
|---|---|---|---|---|
| RS485 A | RS485_POS | RS485 A | TX+ | |
| RS485 B | RS485_NEG | RS485 B | TX- | |
| RS GND | GND | Not available | G |
Configuration
RS485
Set the modbus address on the meter. (Baud rate and parity can also be set, but we recommend leaving this to the default.)
Ethernet
If connected through ethernet, you may have to adjust the IP address settings of the energy meter.
