IAC from Non-SIL to SIL2 controler compiler warning.
is there any option to disable the compiler warning "Communication variable with Expected-SIL not recommended by compiler switch" in case the IAC variable is used from Non-Sil controller in SIL2 controller (PM865).
The protection logic is done in Safty PLC however some signals are required for indication etc. Those signals are collected via IAC from Non-SIL controllers.
Compiler switch settings for "Communication variables" can be done from Control builder.
see the attachement for your Information.
SIL variables can be forced from HMI. for that we need to give the SIL access from control structure for following:
1. SIL access for the coresponding application.
2. SIL access for the corresponding single control module.
3. SIL access for the Corresponding control module variable.
and one more thing if you are using IAC communication from Non-SIL to SIL2,you need to use control diagram editor other wise your communication will not happen in Original controller. but communication will if use soft controller.