How to set restart the cimplicity port process?

I have a problem of cimplicity port process that is sometimes cut of communication with plc.
This protocol driver has been designed by ourself.
and the driver is running normal in the cimplicity version 6.0.
but if I will setup in the cimplicity version 8.0, the driver is be broken sometimes.
the computer shows the instruction at "Ox7c92100b" referenced memory at "Ox00000034".The memory could not be "read" .
and the image name of the computer system process has nothing the driver exe file.
The process port of process control of cimplicity shows master port process halt.
if it is be start process, the port process will be ok.

so I have configrated the master of node process of the process healthe parameters to restart port process.
but sometimes it will useful. It's no always help for the port restart.

Any guys,Could you have any solutions for my issue?

I hope it has any vbscipts or other ways to figure out this current circumstance.

Thanks an advance.

Justin