Hi, I have problems to convert float and 32b (signed/unsigned) registers to obtain a result able to be sent to MQTT broker. The modbus device is a semaphore/Servelec Tbox unit. I use node-red modbustcp Example: I have a float register with a value of 22.362 in it. I want to pass that value to my M…

In the Change nodes where you extract the individual parts add another row that Sets msg.topic To the/topic/for/this/value

Steve-Mcl 14 January 2020 11:22 2

See this thread (read it all) there are some pointers in there that might help.

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Newbie: convert modbus float [array] register to float value

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