In beta and available on request. The additions in this overview require the matching integration or controller update and are not confirmed as part of the standard customer release. Request them through your existing Eniris support conversation. The status applies to these additions, not to every existing function of the devices listed elsewhere on this page.
| Model / system | Beta addition | Validation and conditions |
|---|---|---|
| Sunwoda SunESS 5H | Aggregate battery and zero-power release | Verify actual battery configuration and local fallback |
| Sunwoda SunESS 10H | Aggregate battery and zero-power release | Verify actual battery configuration and local fallback |
| Sunwoda SunESS 15H | Aggregate battery and zero-power release | Verify actual battery configuration and local fallback |
| Sunwoda SunESS 20H | Aggregate battery and zero-power release | Verify actual battery configuration and local fallback |
See integration details for connection requirements and operating limitations.
| Device Type | Modbus TCP (Ethernet) | RS485 | Curtailment | Reactive power control |
|---|---|---|---|---|
| SunESS-5H | ❌ | ✅ | ❌ | — |
| SunESS-10H | ||||
| SunESS-15H | ||||
| SunESS-20H |
For correct ethernet wiring: Follow the the guidelines for ethernet wiring.
| Device | Sofar EMS model OM1 | Sofar 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 |
Sunwoda SunESS-H systems support external EMS integration using the PCS communication port, which provides RS485 (Modbus RTU) and CAN.
This document describes how to connect a SunESS system to an EMS using RS485 RTU.
Located on the right side of the SunESS Control Module and labeled:
PCS Communication (RS485/CAN)
| Pin | Function | Wire Color |
|---|---|---|
| 1 | RS485 A | Orange-white |
| 2 | RS485 B | Orange |
| 3 | NC | Green-white |
| 4 | CANH | Blue |
| 5 | CANL | Blue-white |
| 6 | NC | Green |
| 7 | Wakeup +5V | Brown-white |
| 8 | Wakeup – | Brown |
Only Pin 1 (A) and Pin 2 (B) are used for RS485.
SunESS requires:
When used in parallel systems, termination is applied only on the master unit.
Configuration is performed using the PowerLite app.
This is required for EMS communication.
Note: Actual SunESS register maps are not included in the manufacturer manual and must be requested from Sunwoda or inverter/EMS vendor.
Typical working defaults:
| Parameter | Value |
|---|---|
| Protocol | Modbus RTU |
| Baudrate | 57600 |
| Data bits | 8 |
| Parity | None |
| Stop bits | 1 |
| Slave ID | 1 |
Up to 3 cabinets can be connected in parallel.
EMS should:
SunESS should:
Common issues and checks:
A custom integration represents the battery as one aggregate system and releases external battery control with a zero-power request. Confirm the actual battery configuration and the local fallback during commissioning.