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Slave comm failure and then instant recovery after upgrade to 7.207
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 Posted: Saturday Feb 11th, 2023 05:50 pm
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freak69
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HI, I have just upgraded firmware on my slave to 7.207.Now every time I reset the system I get:
07/06 00:00 Reset Comfort Controller0
7/06 00:00 Comm. failure # Slave 1
07/06 00:00 Comm. restore # Slave 1
02/11 18:22 Date/Time Change UCM 1
02/11 18:24 Sign in - User # 10
2/11 18:36 Sign in - User # 1
02/11 18:37 Sign in - User #1
02/11 18:38 Sign in - User # 1
02/11 18:39 Reset Comfort Controller
02/11 18:39 Sign in - User # 1
02/11 18:40 Sign in - User # 1
02/11 18:40 Comm. failure # Slave 1
02/11 18:40 Comm. restore # Slave 1
 
Seems stable after the restore - is this a reported bug or smoothing else? FYI, controller is 7.201Thanks!


 Posted: Sunday Feb 12th, 2023 01:11 am
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slychiu
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I believe this is a timing issue at reset and should not affect the operation of the slave. Let me know if you encounter any problems


 Posted: Sunday Feb 12th, 2023 08:46 am
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freak69
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Hi,It seems fine apart from the alarm going off every time I reset, and my wall panel constantly telling me there is or was a slave communication issue. It was fine before I upgraded and has never happened before, should I try and downgrade? Is this a reported bug that can be looked at in a new version?Thanks


 Posted: Sunday Feb 12th, 2023 10:19 am
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slychiu
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Sure, we will check if it happens on other systems


 Posted: Thursday Jun 15th, 2023 12:08 pm
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Craig Robins
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I had exactly the same issue. The comms failure rectifies itself but it was extremely annoying getting these warnings after any reset. I have now downgraded the slave firmware to stop this happening again.


 Posted: Saturday Jul 22nd, 2023 09:12 am
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eborges
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I'm also having this same communications failure to Slave when I reset the ystem. I'm runing firmware 7.201 on the controller and 7.207 on the slave board


 Posted: Saturday Jul 22nd, 2023 09:16 am
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slychiu
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It looks like the slave is slow to respond to a initial poll by Comfort. we shall check it further


 Posted: Monday Oct 16th, 2023 05:58 pm
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timop001
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I have just updated to the latest firmware - Updated ULT (7.201) UCM (7.176) and SEM (7.207) firmware and am relieved to see that others have encountered the same problem. Comms error to Slave after reset and Comfigurator transfer.

Last edited on Monday Oct 16th, 2023 05:59 pm by timop001


 Posted: Tuesday Oct 17th, 2023 01:19 am
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slychiu
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We have not encountered this but will check again


 Posted: Thursday Oct 19th, 2023 09:24 am
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timop001
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It looks like the same issue as mentioned by others in this thread...

Is there a fix or shall I downgrade the slave (SEM02-M2) to the previous version ?
Can one downgrade via the ETH03 connection or does it require a cable upload ?


 Posted: Thursday Oct 19th, 2023 11:46 am
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slychiu
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You can downgrade  to an older version using the ETH03 or UCM. You do not need the upgrading cable unless you have a problem.
select the firmware from http://www.cytech.biz/slave_firmware.html


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