Hello, I´m trying to query my SMA Inverters. When I query 2-4 values, the modbus server crashes always (i tried both Inverters). the poll rate is 10s [grafik] I think the problem could be that nodered queries them all at once, can I set somehow that the values are queried one after the other ? …

Hi Becker, Uninstall modbustcp node and use 'node-red-contrib-modbus' that has more advanced features. basically you use the modbus-flex-getter node with the following logic setup [image] your inject node will trigger every x amount of seconds the setup functions that will in turn send request …

Becker 13 September 2020 09:51 19

@UnborN
there is something wrong with the Join Node:

I can´t add two values, see: Adding two values

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Query modbus registers for SMA Inverter without crash

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