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  #1  
Old 09 Oct 17, 04:11 AM
Andy1967 Andy1967 is offline
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Default PAC Stops Running

I have set up a dimmer channel to 3 different levels, 2 by DLT buttons and 1 by Multi Sensor.
I have created a pseudo group 200 in the PAC which is activated with any of the DLT buttons to disable the PIR when the dimmer is enabled by any of the DLT buttons.
The logic works for several cycles i.e. push one of the buttons group 200 PIR disable appears in the application log and the lights stay at the desired level when walking below the sensor.
However after a while the sensor disable appears to stop. i.e. push one of the buttons and the lights ramp to the desired level but walk below the sensor and the light level changes to match the level setpoint desired by PIR activity and the disable group 200 stops appearing in the application log.
Its as if the PAC has stopped running soon after logging off it.
Powering down and back up also allows the logic to work for several cycles but
the problem returns shortly after.
Any help appreciated, Cheers .
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Old 09 Oct 17, 09:02 AM
Ashley Ashley is offline
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We may have some chance of helping if you post the actual logic
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Old 09 Oct 17, 12:57 PM
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NickD NickD is offline
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As well as Ashley's suggestion..

If you have a spare interface, download the Diagnostic utility and see what you see going on on the bus.

My guess is that you may be using if statements instead of once statements and your queue is filling up.

Nick
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Old 11 Oct 17, 05:22 AM
Andy1967 Andy1967 is offline
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Thanks for your replies.
I didn't put the logic on as I was trying to keep the post brief.
I will check for if statements and try the diagnostic utility and post any results I see and the logic.
Cheers.
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  #5  
Old 12 Oct 17, 06:28 AM
Andy1967 Andy1967 is offline
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I haven't had chance to run the diagnostics yet but please see logic below for any ideas
I have created 2 modules.
Module 1. to disable the PIR by switching a group address 200 (kitchen PIR
disable "ON" when the kitchen lights are at 20% or 60% which are the 2 levels that can be set by the DLT.

once(Get Lighting Level("Kitchen Ceiling")=20% or
(Get Lighting Level("Kitchen Ceiling")=60% then
begin
Set Lighting State ("Kitchen PIR Disable",ON);
end;

The other switches the group address 200(kitchen PIR disable "OFF" when the kitchen lights are at 0% or 25% which is the level set by the multi sensor.

once(Get Lighting Level("Kitchen Ceiling")=0% or
(Get Lighting Level("Kitchen Ceiling")=25% then
begin
Set Lighting State ("Kitchen PIR Disable",OFF);
end;
The group address is then used in the disable setting of the multi sensor.
As I said earlier the logic seems to work fine for a short while then stops and only restarts when I log on and off or power down/up.
Hope this is clear.
Many Thanks !
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Old 12 Oct 17, 10:10 AM
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NickD NickD is offline
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I don't follow the logic..

Once you operate the DLT, the PAC disables the Multisensor....

In order to re-enable the Multisensor, the PAC needs to see one of the levels from the Mutlisensor... but it's disabled?

How can the latter ever happen?

Nick
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Old 13 Oct 17, 05:06 AM
Andy1967 Andy1967 is offline
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Hello Nick.
Thanks for your reply.
I think my wording may have mislead you.
The 0% comes when the DLT times out or is turned off then the multi sensor should enable ready for the next movement.

The problem I am having is also not with the multi sensor failing to enable but the opposite i.e. enabling when it shouldn't and driving the lights to 25% when the DLT has driven them to 60% or 20%.
Cheers !

Last edited by Andy1967; 13 Oct 17 at 05:18 AM.
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