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Communication failure after "Write Selective"
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 Posted: Monday Dec 19th, 2016 04:42 am
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richylloyd
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Hi, Hope someone can assist with a simple fix...
I wrote some updated responses to the system tonight and I am no longer able to connect due to a UCM communication failure.For the write selective, I deselected a number of the pre-selected options as it was a very minor response change which should not have influenced any of the other options.
I now cannot connect from Comfigurator via Eth02 - although I can successfully ping the UCM.Keypads are just showing their respective ID's with the green light flashing.
I have hard reset the system a few times but with no improvement.
Many thanks in advance...



 Posted: Monday Dec 19th, 2016 06:21 am
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slychiu
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Please check the ucm leds D9 Red and D10 green. are they blinking or off?



 Posted: Monday Dec 19th, 2016 10:51 am
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richylloyd
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D9 and D10 are both off.  Only D1 is on (solid) on all UCMs.



 Posted: Monday Dec 19th, 2016 11:42 am
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richylloyd
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Also, no cables are disconnected as the unit was working fine prior to the write.I have double checked these with no change in status.



 Posted: Monday Dec 19th, 2016 04:28 pm
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slychiu
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There is no bus communications at all
Disconnect all the wires from KA and KB and connect each one back one by one starting with a Keypad 1, then UCM 1 and Keypad 2
The UCM D9 and D10 should both be blinking




 Posted: Tuesday Dec 20th, 2016 04:12 am
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richylloyd
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I have now tried all the possible combinations of Keypad and UCM connections with no change to the status.
Soon after I apply 12V to the keypad, it begins to beep indefinitely.The UCM does not connect as expected and a second UCM (GSM) also does not connect if I set it up as ID1.
I have even gone so far as to disconnect the LEM03 and any other inputs to see if that might help.
Any other ideas I can try?



 Posted: Saturday Dec 24th, 2016 03:16 pm
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richylloyd
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All sorted now.It was a fairly fundamental communication error solved only by reinstating the factory code to allow reconnection to the UCM's. 

Many thanks to Hugh (Swiss Toni) for the advice, I wouldn't have managed without the ideas offered.



 Posted: Sunday Dec 25th, 2016 06:14 am
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slychiu
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What was the cause of the problem? For future reference



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