DX561 Digital input/output module ABB USED newused 1TNE 968902 R2301 1TNE 968902 R2301 PLC 1TNE968902R2301 ABB ABB PLC ABB PLC MODUL 1TNE968902R2301 MODUL 1TNE968902R2301 PLC 1TNE968902R2301 PLC MODUL 1TNE968902R2301 DIGITAL