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alengwenus / pypck

Asynchronous LCN-PCK library written in Python
MIT License
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Modules do not send an acknowledge using the LEER command #67

Closed alengwenus closed 3 years ago

alengwenus commented 3 years ago

When sending >G000003!LEER (module_scan) not all modules seem to send an acknowledge if there is lots of bus traffic.

LCN-PRO performs the scan using a different telegram which corresponds to >G000003.X27EFF06 (request last modification) and observes the responses to that (=Msssmmm.[tt], [tt] = name and encoded date).

It would be interesting if the described behavior also shows up using LCN-PRO. If not, module scan in PchkConnectionManager should be adapted.

maximilianriemensberger commented 3 years ago

Just to clarify, I experienced it with other messages as well. So I don't think its a particular problem with LEER. More a general problem that all modules try to access the bus simultaneously.

And yes, If I scan my bus with the PRO changes are that I miss one or two modules. I usually rescan them manually.