Hi Juan,
I had a problem with the CRC and this is the response I got from the Agents and it help me solve the problem;
I suggest to implement both replies: number 1 and number 2. Format frame is on the byte nr 6 (= or N).
Checksum calculation is the sum of the ASCII chars and not the number as you write.
For example 0 is 30hex ascii.
Every number or simble (such as = and . and N) has ASCII code. You have to sum those ASCII codes up to the last = included.
Then you divide by 255 and you take the reminder. The reminder is the CHK. This is the MOD operation.
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