SIL 3 application, Reset trip from HMI
I just wonder if anyone has a hint about resetting trip signal from HMI.
In Siemens you have to write a 6 and then a 9 to a special function block (F_QUITES) from HMI. If this is done wrong the reset will not be activated.
I can't find any SIL FB in ABB for this purpose. I don't think resetting from NonSIL and sending the signal to SIL is acceptable.
How have you people solved this?
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