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Comfort Automation/ Security System Forums > Third Party (interfacing to Comfort) > KNX (EIB) > Save status of knx GA and resend it to bus after 1 minute of 230V return

Save status of knx GA and resend it to bus after 1 minute of 230V return
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 Posted: Friday Apr 17th, 2015 03:23 pm
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Konnexman
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Hi!We have a project where we need the values of certain group addresses to be restored 1 minute after a power failure. That would be very easy with a response "after power return", but we have an equipment in the bus that when the power fails, sends a reset to those GA.With this in mind, we need to know if Comfort can save these variables before power failure to counters, and doesn't allow any writings in these counters during the first minute of power return. Afterwards we would make a response for power return in order to write in knx the saved status of the counters.



 Posted: Friday Apr 17th, 2015 04:18 pm
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slychiu
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Comfort counters are maintained unchanged during AC power failure (battery must be connected). But it cannot prevent the counter values from being changed by mapped KNX addresses during the 1st minute after power restore

What you may be able to do is to save a copy of the relevant counters to another set of counters, and after power restore, copy the saved counters back to the original set, so they can be sent to the mappped KNX addresses



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Comfort Automation/ Security System Forums > Third Party (interfacing to Comfort) > KNX (EIB) > Save status of knx GA and resend it to bus after 1 minute of 230V return
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