Joe1324

smiffy

There is no function to read a 4-word value. You will have to read it using to 2-word values and recombine these back into your 4-word value at the receiving end.
Is the 4-word value a real (floating point) value?
If so, you would be advised to read this thread.
/tf/WW/en/Posts/104581

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Split from S7-1200 Modbus TCP/IP with Sentron PAC3200 4 word long register..