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poll values using Modbus TCP master


bjarni

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Hello,
I'm trying to poll some values from Laumas weight transmitter - and I'm kind of stuck.  I've tried to read some addresses according to the Laumas manual, but the power-up value in the receiving variable is never overwritten.   I get modbus status as -11, which I don't know what means.
 

THe  setup:

image.thumb.png.24c38a9b202316375f136d97020ab9df.png

It should be reading all the time if set up as periodic and the active bit is set ?

The values when running:

image.png.caca0ef919a7a81938c5ede6195a163b.png

 

Anybody with any hints for me?
Thanks, Bjarni

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