Hello everyone:
I am newbie for INTOUCH, but now I face a big problem.
Now INTOUCH need connect to GE PLC S90-30, redundancy two which is MASTER PLC (name PLC 1) and another is SLAVE PLC(PLC 2). Both PLCs have 2 same tags named PLCMAIN and PLCSTANDBY. So I can know who is current master one. PLCs will switch themselves. There are few conditions I need cover as below:
- all connection healthy, If 2 PLCs switch, PLCMAIN and PLCSTANDBY value changed, My INTOUCH change topic name to get data from current master via the tag value.(tags of both PLCs SYNCHRONIZE)
- all connection okay, PLCMAIN and PLCSLAVE value not synchronize (maybe redundancy fail or PLC freeze etc...)
- connection fail then INTOUCH switch topic (whatever another one is master or slave)
How can I DO ? write script to handle it ?
thank you very much !
I am newbie for INTOUCH, but now I face a big problem.
Now INTOUCH need connect to GE PLC S90-30, redundancy two which is MASTER PLC (name PLC 1) and another is SLAVE PLC(PLC 2). Both PLCs have 2 same tags named PLCMAIN and PLCSTANDBY. So I can know who is current master one. PLCs will switch themselves. There are few conditions I need cover as below:
- all connection healthy, If 2 PLCs switch, PLCMAIN and PLCSTANDBY value changed, My INTOUCH change topic name to get data from current master via the tag value.(tags of both PLCs SYNCHRONIZE)
- all connection okay, PLCMAIN and PLCSLAVE value not synchronize (maybe redundancy fail or PLC freeze etc...)
- connection fail then INTOUCH switch topic (whatever another one is master or slave)
How can I DO ? write script to handle it ?
thank you very much !