FATEK FATEK PLC plc Digital input/output module INPUT / OUTPUT MODULE DIGITAL MODULE FATEK FBS-60EA FBS-60EA FBS-60EA digital I/O module FBS-60EA 24VDC input 24 output FBS60EA expansion unit FATEK FBS-60EA module FBS-60EA automation I/O FBS-60EA PLC extension FATEK FBS-60EA part number FBS-60EA industrial module FBS-60EA right-side expansion