Hi,
We seem to be having a somewhat repeatable issue wherein on starting our AXCF3152 (2023.9 firmware) it fails to bring up the run-time and seems to have an issue somewhere in the boot process (will confirm Boot LED state during the process as to whether this indicates firmware fault, however our ability to still eventually get the PLC up as described below makes this interesting).
We managed to work around this issue in one of two ways :
* Power cycling a handful of times until we got lucky and it was happy.
* Switching the controller/run-time toggle switch from “RUN/PROG” to “STOP”. Then it seemed to happily boot the times that we tried and we were able to then start the application by switching to “RUN/PROG” without issue.
* Other Observations
We looked through the logs and could not see anything from the failed boots in /opt/plcnext/logs/Output.log (i.e no logs for the run-time starting or anything else) ?
* We tried to ping and ssh when it was not booting to see what was going on, but were unable to do either.
*
My questions are as follows :
Any ideas what might be causing this ? The fact the firmware is not rolled back (auto-recover mechanism) and that we can work around with the toggle switch indicates some other strangeness to me.
* Syslog : on other linux systems that I have worked with there is a rolling syslog that can then be read by digging around /var/log or using journalctl. This syslog encompasses multiple boots, so I could look at a previous boot from a while back. There does not seem to be this capability on the plcnext, atleast it is not enabled.
Cheers
Hi!
Some times it could occurs in the situation when your project or additional app require system components, which was disabled via WBM, for instance Profinet Controller/Device etc.
And when you provide several sequental reboots, it activates mechanism of firmware restoration and switching between two reserve partitions. And this allow you to reach RUN state of plc firmware.
Kindly look through WBM system services config as first step.
BR
Hello Linzoi,
I agree with Oleksandr, please reset the PLC to factory default settings and check the supply voltage (in load mode). If the error persists, please contact Phoenix Contact support in your country. Colleagues will create a Zendesk ticket and try to help you. If my support in analysis will be needed, the support team can delegate the ticket to HQ (PLCnext Highlevel Programming & Toolchain) and we can investigate the behavior together.
Thanks & BR
Eduard