PAC unit not keeping time

I've had to power off the lighting circuits a couple of times in the past month, but it appears that the CBUS system has failed to keep track of the current time. Normally, I can switch off the power for a while and the time is retained (I assume in the PAC).

Is there anything I can do to troubleshoot this? From what I understand the PAC has a capacitor that holds a bit of charge to retain clock power for a while. Are there any options I can check to see if this is enabled or check the status?

 

You can use the diagnostics utility to see which device is broadcasting the time.
It may be that another device is becoming the time master after power up.

I have previously found a couple of odd things regarding time keeping when there is a PAC and a thermostat. This link may be helpful. http://www.cbusforums.com/forums/showthread.php?t=12091

 

Thanks to you both for the replies, I haven't had a chance to run a diagnostic on it yet, but I'll do so this weekend and report back with the findings. It may be worth noting that the date was correct, only the time was incorrect.

The power was only off for around an hour (after being online for months), so the supercap should have had time to charge (although may have failed).

I've got a fairly basic system with 5 x dimmer units, lots of standard wall switches, 2 IR sensors, 1 light level sensor, 1 x eDLT and 1 x PAC.

 

I connected to the network today and had a look - I did notice the following settings for the PAC in the toolkit. It's set to have the clock enabled, but the clock gen doesn't appear as active on the status tab - is that the problem?

Here's a couple of screenshots showing what I mean:

I fired up the diagnostics app, but wasn't sure how I can see which unit broadcasts the time? I clicked on the time tab at the bottom of the screen, then the refresh button - but nothing was returned. Do I just need to leave it connected then wait for a time sync?

Last time I powered on, it was supposed to be 5:15PM, but it showed as 3:15PM.

 

Thanks, that makes sense .

Yes, I was using it as a PCI at the time which would explain that too.

I'll try flipping the power again to make sure it's not a co-incidence. I haven't updated the firmware in the past year, so I guess it may need updating - I'll do this too. Hopefully this will fix it .

Is there a changelog with release dates available? I could only see one with version numbers, but no date.

Thanks for the help Nick, I appreciate it!