Modbus TCP Server

Hello all,

I have added a picture from the eth protocols. I'm confused about %R and %M means and what makes the difference. If anyone can spare the details that will very helpful.

Regards

Amal

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Amal Rank: 84

Asked 12 months ago

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Greetings,

%M indicates that Global Flag Memory (Non-Retain)
%R indicates that Persistent Memory (Retain)

For more details please see Chapter 2.4 and 2.6 on below file:
https://library.e.abb.com/public/da37...

Hope it helps you.

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