I used for reading date/time from uIEC "T-RA" command - all was correct.
When I tried to use "T-WA" to write date/time I found problem - date/time is not possible to change, even device no error reports.
I used simple code (date and time are only example, uIEC device number is 11):
then uIEC reports no error, but date/time is never changed.
How to fix it?
Thank you for all.