
ES-IGW-B1
Data Concentrator
Best for collecting data from existing meters and controllers.
- Ethernet
- 2x (Internet + Modbus TCP)
- Serial
- 1x RS485
- Power
- 5V DC / 3A
- Configuration
- Web dashboard
The ES-IGW-B1 reads the meters and controllers on your site over Modbus and RS485. The ES-IGW-E1 adds direct sensor inputs, relay control, RS232 and CAN bus. Both send their data to the En-Stream platform.

Best for collecting data from existing meters and controllers.

Best for sites that need direct sensor inputs and equipment control.
Choose the ES-IGW-B1 to read data from meters and controllers you already have. Choose the ES-IGW-E1 when you also need direct sensor inputs or want to control equipment.
| Feature | ES-IGW-B1 | ES-IGW-E1 |
|---|---|---|
| Best for | Best for collecting data from existing meters and controllers. | Best for sites that need direct sensor inputs and equipment control. |
| Ethernet | 2x (Internet + Modbus TCP) | 2x (Internet + Modbus TCP) |
| Serial | 1x RS485 | 1x RS485, 1x RS232 |
| Fieldbus | Not included | CAN bus |
| Analog inputs | Not included | 4x (0–20 mA / 0–10 V, 16-bit) |
| Digital inputs | Not included | 8x (12–24 V) |
| Relay outputs | Not included | 8x, for actuator control |
| Power | 5V DC / 3A | 24V DC / 10A |
| Configuration | Web dashboard | Web dashboard |
Book a 30-minute demo and see how En-Stream connects to the meters, machines and generators you already run.