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Dear friends,

When I connect to the panel and want to check the devices on the loop via mapping menu the devices are not shown in the mapping menu!
actual devices in loop statistics are all 0 (zero) and expected devices are true!
what should I do?
Thank you all in advance.

this is a common problem, it maybe as simple as a smoke detector not snapped in all the way.
open the slc loop with only a few devices and try and map it.
when the troubled wiring is not in the slc loop it will map

thank you very much leo
I will try it in the site next week and I'll tell you the consequence.