HI experts;
System GE 90-30 CPU 352 i used......
I want to enegise a master electromagnetic relay which control the supply of critical output devices. I want if programme excuation takes long time or halt or plc fail then it turns off. and system shutdown. how i full fill this task?
second i see a logic from another person who do the following?
He use IC693APU300 HSC module. Its %Q Address start from %Q0001 to %Q0016. He set the %Q 10,11 and 12 on first scan. These addresses control the three electromagnetic relays.
%Q 10 and 11 reset when over speed occur. And he used %Q 12 to determine PLC Fail. I read the documentation of this module but unable to understand why he used %Q10,11,and 12 why he is not used %Q 1 ,2 and etc.
Please guide me i am stuck here?
Regards
System GE 90-30 CPU 352 i used......
I want to enegise a master electromagnetic relay which control the supply of critical output devices. I want if programme excuation takes long time or halt or plc fail then it turns off. and system shutdown. how i full fill this task?
second i see a logic from another person who do the following?
He use IC693APU300 HSC module. Its %Q Address start from %Q0001 to %Q0016. He set the %Q 10,11 and 12 on first scan. These addresses control the three electromagnetic relays.
%Q 10 and 11 reset when over speed occur. And he used %Q 12 to determine PLC Fail. I read the documentation of this module but unable to understand why he used %Q10,11,and 12 why he is not used %Q 1 ,2 and etc.
Please guide me i am stuck here?
Regards