Hi everyone, I have a ModBus register of 2 words in Float32. I can't convert it to decimal to import it into InfluxDB. I can't config the Buffer Parser... Help please :slight_smile:

Hi Steve, I found the solution by chance. I turned the buffer parser around until I found my expected value. I also called Schneider Electric who pointed out an error in the calculation note: all values in Float32 are expressed in Kilo. Moreover, the MSB must be switched to the left for reading. …

Steve-Mcl 20 May 2021 12:59 9

So those values are weird. Do you have a manual - I suspect they are not straight forward float32 values.

also, what registers are you accessing in the modbus node (show picture)

Topic		Replies	Views
Modbus 32 Bit Float to an INT Industrial	3	1424	3 August 2022
How to convert integer value coming from modbus to float value General	21	1648	13 October 2022
Float (High/Low word) to a decimal value General	2	432	17 April 2022
Convert 2 modbus words to float General modbus	3	1428	13 December 2021
Need some help with float numbers General	11	4086	10 September 2021

Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

Convert ModBus Float32 to Dec

Related topics