Problem with CI854 communication to slaves needs resetting controllet
in last months i have problem with ci854 module.
whenever we are working at the slave end communication with master get lost. and controllerneeds to be restarted to resume the communication back again.
we have controller ABB PEC
CI854 master module which connects to Third party EMG controller on profibus link with Baud rate of 187.5kbps.
kindly suggest how to avoid resetting of controller as too many data getting lost due to reseting it.
thank you all
for your valuable reply....
Voted best answer
Please check the valuse of "retry limit" in CI854 configuration. it must be reaching its limit when you are "working" with the slave. Not all slaves support configuration changes while they are online and so they can go into an unresponsive state. And will cause the CI854 to stop.
Also, Try doing unplug and plug back the CI854 in its base instead of controller reset to resume communication.
If this is a repititive problem then I would suggest you to remove the CI854 module once and then plug it back. Check again. If the problem persists, try a different module of CI854 to know whether the module currently running has any issues.
I do not see any problem with controller here, however once u remove/replace a model give a controller restart.
Hope this helps,