Schneider-Electric IEM 2100 Series Energy Meters
Supported Devices
The IEM 2100 Series are single-phase energy meters.
| Device Type | Modbus TCP (Ethernet) | RS485 |
|---|---|---|
| Schneider-Electric iEM 2100 Series | ❌ | ✅ |
| Schneider-Electric iEM 2150 | ||
| Schneider-Electric iEM 2155 |
Wiring
The IEM 2100 series communicates via Modbus RTU over RS485.
Info
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 | a-TroniX Controller model OM1 | a-TroniX Controller model IG8 | RS485-USB converter | RS485-Ethernet converter |
|---|---|---|---|---|
| D1 (+) | RS485 A | RS485_POS | RS485 A | TX+ |
| D0 (-) | RS485 B | RS485_NEG | RS485 B | TX- |
| 0V / Shield | RS GND | GND | Not available | G |
Please refer to the device manual for the exact pin locations, as they may vary slightly between specific sub-models (e.g., iEM2150 vs iEM2155).