PSSu, head module, control system PSSu PLC, failsafe and standard, PL e, SIL CL 3, 2 M12 female connector 4-pin D-coded, SafetyNET p RTFN, Modbus/TCP, Raw UDP, Raw TCP, EtherNet/IP adapter, PROFINET IO DEVICE, SD card, M12 female connector, for railway applications. 315071