I am trying to get a PFC200 to run on codesys.

I am able to add the internal bus and the device is shown as active, but when I go to the bus it's status says PFC200Bus: Not running.
I seem to be able to compile and download programs, but IO interactions wont work.

When scanning for connected devices i get a kbus error.
There also a could not create directory /var/run/codesyscontrol/ error.

Setup:
pfc200 8212 fw 03.07.14(19) runtime V4.3.0.0
CODESYS Sp17 Patch 2

Any suggestions on how to solve this?

Is it possible that you are missing the end terminal on k-bus?
740-600 is mandatory to have connected

Can confirm that i have a 750-600 end module connected. I had everything running fine with e!Cockpit before i decided to try codesys.

Update:
I removed some of my IO modules, so that i was left with only a 750-1506 and and the end-terminal.
This got the program running. Will do some more testing to see if one of the modules are faulty.

I do however still get the could not create the directory error.

never seen this error - could you check if enough space is left on your PFC ... login by ssh and 'df'.
and check if the eCockpit runtime is disabled by WBM

So i got all IO modules connected and PLC online. PLC might have some conflict with e!cockpit since it was running that, before i switched. At least it works now.

Not able to see anything about e!Cockpit in wbm, since swaping to codesys 3.5.

Storage does not seem to be full.
df returns:

Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/root               292251    113365    159277  42% /
devtmpfs                250420        60    250360   0% /dev
none                    250932        72    250860   0% /tmp
none                    250932         0    250932   0% /media
none                      4096       128      3968   3% /var/log
none                    250932       100    250832   0% /var/run
none                    250932         0    250932   0% /var/lock
none                    250932         0    250932   0% /var/tmp
none                    250932         0    250932   0% /sys/fs/cgroup
tmpfs                   250932       112    250820   0% /run
/dev/mmcblk0p1        30638016    616492  28442160   2% /media/sd
/dev/mmcblk1p1           16334      2774     13560  17% /boot/loader
/dev/mmcblk1p9         1514352    234284   1185092  17% /home
/dev/mmcblk1p6            5915        41      5373   1% /settings
/dev/mmcblk1p5            5915        49      5365   1% /log
none                    250932       100    250832   0% /var/run/netns
/dev/mmcblk0p1        30638016    616492  28442160   2% /media/sd/docker
root@PFC200V3-4DB391:~ ll
drwx------    3 root     root          1024 Dec  6 21:30 .
drwxr-xr-x   19 root     root          1024 Jan  6 15:45 ..
-rw-------    1 root     root           638 Jan  4 10:54 .bash_history
drwx------    4 root     root          1024 Dec  6 21:30 .config
-rw-------    1 root     root            35 Aug 11 21:56 .profile

Should i try to create the folder manually as root?

hm..you still see this message in the logger?

Yes the error is still there.