# SMA SunSpec over Modbus

**URL:** <https://community.openhab.org/t/sma-sunspec-over-modbus/116584>\
**Category:** Bindings\
**Tags:** modbus, sma, sunspec\
**Created:** [February 9, 2021, 4:54pm UTC](https://community.openhab.org/t/sma-sunspec-over-modbus/116584 "2021-02-09T16:54:09Z")\
**Posts on this page:** 1\
**Showing post:** 10

<div class="post-metadata">

**Author:** ![mrbig](https://community.openhab.org/letter_avatar_proxy/v4/letter/m/c6cbf5/32.png) [@mrbig](https://community.openhab.org/u/mrbig)\
**Post date:** [February 14, 2021, 10:14am UTC](https://community.openhab.org/t/sma-sunspec-over-modbus/116584/10 "2021-02-14T10:14:05Z")

</div>

Thanks @Tuny,

according to this SMA also has a correct SunSpec data format, but at a different address than SolarEdge uses. However the autodetection should had detected the correct address, so if it didn’t that is a bug in the binding.

If you could turn on logging for the modbus communication and log the autodetection process (with the modbus register dumps) that could help identify the problem.

So long manual setting could be a solution. Also according to @Sascha\_ the inverter might reports invalid data while not producing power, but that could be normal.

---

_[View the full topic](https://community.openhab.org/t/sma-sunspec-over-modbus/116584)._