ABB 700F hardware Issue
We have used AC700F with Intrinsic Safe I/Os on a hazardous Gaseous Plant where Digital Outs are connected to actuators,
what type fault occur with AC700F when our system Fails?
How will our system behave in the current scenario?
Which Intrinsic safe I/O's ? Incase of S900 i/O or any ABB remote/direct I/O's using with AC 700F you can configure safety values that if any fault occurs system or communication fault. I/O value goes to preconfigured safety value to keep field instruments in desirable safe operation mode. check image below.
Hope that helps