180852 ⎘
Program-control systems; Pc systems; Pc I-O input output If I-O defect, warning light, operator pushes buttom, cpu disconnects I-O
Configurable binary circuits for protection relays in electric power systems
#2Automated method for verifying manufacturing process control interlocks
#3I.S. machine control unit
#4Method of detecting disconnection and power discontinuity of I/O unit connected to numerical controller