Hi,Did you look at the tab called "12 BITS rtu READING SECTION" ..
Looks like you were trying to read at the wrong place...
For me RTU reading would be on that section ...
Can you developp on that 9FC3 is is kind of calculation you did or a value that you got from somewhere...
Please see this thread for an explanation: https://www.eng-tips.com/viewthread.cfm?qid=481711