A safety function is to be designed to be high-demand and with SIL 2 integrity. As there are plenty of safety functions to mitigate the risk in a machine, the project team decides to use a combination of Safety PLC and safety relays for their application. The inputs, and outputs use proximity switches, and contactors to de-energise the machine. What standard is MOST suited for this scenario? IEC 26262 ISO 13849 IEC 62061 IEC 61511 IEC 61508