DIGITAL INPUT/OUTPUT MODULE CPX-AP-I-4DI4DO-M12-5P DIMENSIONS W X L X H=30 MM X 170 MM X 35 MM, NO. OF OUTPUTS=4, NO. OF INPUTS=4, DIAGNOSTICS VIA LED=(* DIAGNOSTICS PER MODULE, * POWER SUPPLY LOAD, * STATUS PER CHANNEL), DIAGNOSTICS PER INTERNAL COMMUNICATION=(* LOAD SWITCH-OFF, * SHORT-CIRCUIT/OVERLOAD OUTPUT SIGNAL, * SHORT CIRCUIT/OVERLOAD IN SENSOR SUPPLY, * ELECTRONICS/SENSORS OVERVOLTAGE, * LOAD OVERVOLTAGE, * ELECTRONICS/SENSORS UNDERVOLTAGE, * LOAD UNDERVOLTAGE)