INPUT/OUTPUT MODULE, STANDARD INPUT/OUTPUT MODULE UNIT, AND SAFETY CIRCUIT UNIT

摘要

The present invention reduces power consumption and parts waste. An input/output module (100) includes a standard input/output module unit (4) and a safety circuit unit (5). The standard input/output module unit (4) includes: an external interface unit which connects to a controlled device; a standard input/output module side control unit which receives an input signal from the controlled device and transmits the same to a control module unit, or transmits a control signal received from the control module unit to the controlled device; and first connector units (41, 81) provided with a plurality of connection points. The safety circuit unit (5) includes: a diagnostic unit which diagnoses the operating state of the controlled device and the standard input/output module unit; second connector units (51, 91) which are provided with a plurality of connection points and can be freely inserted into and removed from the first connector units; and a safety circuit side control unit which controls the operation of the standard input/output module unit and the diagnostic unit when the second connector units are inserted into the first connector units.