ABB 2TLJ020073R5900 AS-i Active AS-i module SmartL50 4DI4DO Safety PLC Description Description ABB 2TLJ020073R5900 AS-i Active AS-i module SmartL50 4DI4DO Safety PLC Related products ABB FPR3600227R1202 ABB 2TLA040037R0900 ABB 2TLA040001R0000 ABB ACS60100203 ABB 2TLA040037R0800 ABB 2TLA040001R1100