Author Topic: ModbusTcp/Ip Reading 32 bit Integer  (Read 808 times)

lgrimm

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ModbusTcp/Ip Reading 32 bit Integer
« on: April 03, 2017, 08:07:36 AM »
Hi:
I am having difficulty reading a 32 bit Integer register. It is designated as a being read with function code 3 and accessed as a complete unit.
Need to read address 5101 or 5102 adding 1 for Modicon compatibility.

I am being able to read 32 floating point registers as for example F47102, which is designated as 7101. But because of Modicon compatibility am adding 1 address number.

Thanks

Lee


Archie

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Re: ModbusTcp/Ip Reading 32 bit Integer
« Reply #1 on: April 03, 2017, 09:13:52 AM »
Modicon style addressing starts with an offset of 1, so your address should be L45102