| Device Type | Modbus TCP (Ethernet) | RS485 | Curtailment | Reactive power control |
|---|---|---|---|---|
| OSP-100K-A | ✅ | ✅ | ❌ | — |
| OSP-200K-A | ||||
| OSP-200K-A2 | ||||
| OSP-300K-A3 | ||||
| OSP-400K-A2 | ||||
| OSP-400K-A4 | ||||
| OSP-100K-B | ||||
| OSP-200K-B | ||||
| OSP-200K-B2 | ||||
| OSP-100K-C-2 | ||||
| OSP-100K-C-3 | ||||
| OSP-200K-C | ||||
| OSP-200K-C2 | ||||
| OSP-100K-H-2 | ||||
| OSP-100K-H-3 | ||||
| OSP-200K-H | ||||
| OSP-200K-H2 |
Important for batteries larger than 100 kW
If your battery power is rated for 100 kW or more, contact the Sunwoda support to enlargen the power limitation register.
By default, the power limitation is set to 100 kW. This can be updated by Sunwoda support on register 0x78f6. EPSherpa EMS will then be able to control the power limitation.
For correct ethernet wiring: Follow the the guidelines for ethernet wiring.
| Device | EPSherpa EMS model OM1 | EPSherpa EMS 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 |
If you are connecting through TCP, be sure that the device is configured to communicate with port 502.