Recent content by Threepoint49

Safety system (SIL 2) solenoid (ASCO 327) is connected with SIS (Himax) through an I/P relay (Phoenix safety relay). The question is how will SIS know if solenoid has failed. The diagnostic coverage of SIS will stop at I/P relay. As I know that Himax superimposes and AC over the DC to keep...

Hi, I am designing an architecture for a SIF that monitors the total combustion air intake flow trip in a BMS. As per the SIF description, when the sum of 4 flow transmitters (on four different lines) is less than the trip set point, or if any of these FTs goes into fault etc. the trip will...