# Query modbus registers for SMA Inverter without crash

**URL:** https://discourse.nodered.org/t/query-modbus-registers-for-sma-inverter-without-crash/32788
**Category:** General
**Created:** [12 September 2020 17:19 UTC](https://discourse.nodered.org/t/query-modbus-registers-for-sma-inverter-without-crash/32788 "2020-09-12T17:19:06Z")
**Posts on this page:** 1
**Showing post:** 12

<div class="post-metadata">

### Author: ![Becker](https://avatars.discourse-cdn.com/v4/letter/b/c77e96/32.png) [@Becker](https://discourse.nodered.org/u/Becker)
#### Post date: [12 September 2020 21:55 UTC](https://discourse.nodered.org/t/query-modbus-registers-for-sma-inverter-without-crash/32788/12 "2020-09-12T21:55:52Z")

</div>

> [@UnborN](#):
>
> Try in function address **30866** if you dont need the '0' value and quantity '1'  
> I dont know why it was giving error in previous modbustcp node .. but try with this new one

I doesn´t work this way.

> [@UnborN](#):
>
> try **msg.payload.Pbez[0]** if the above works or  
> **msg.payload.Pbez[1]**

where can I chose [1] ? after "join" a new function ?

---

_[View the full topic](https://discourse.nodered.org/t/query-modbus-registers-for-sma-inverter-without-crash/32788)._