We are having the repeated issue where serial communication is lost to the MMC-100 controller and a power cycle is needed to revive it. I have also found that often if the IOC already running prior to booting up the controller, it will remain in an error state. We thus have the following procedure to revive the Micronix MMC-100 controllers. For a more permanent solution, further investigation is needed to understand underlying issues with the serial cabling currently in place.
$ iocmanager
from a tmo control room machine, i.e tmo-console
State
field for the IOC in question.OFF
Configuration > Apply
and wait for the dialogue menu that open (this can take a few moments)OK
. The IOC is now off.[sheppard@tmo-console tmo]$ telnet ser-tmo-04 4001
Trying 172.21.132.55...
Connected to ser-tmo-04.
Escape character is '^]'.
1VER?
#MMC-100.X3 V1.4.60
2VER?
#MMC-100.X3 V1.4.60
3VER?
#MMC-100.X3 V1.4.60
4VER?
#MMC-100.X3 V1.4.60
DEV/PROD