| 摘要 |
PROBLEM TO BE SOLVED: To provide a signal switching device which eliminates need for a controller with a control program, allows construction of a compact and inexpensive system, reduces costs and risk of operational mistakes and the like, and improves work efficiency.SOLUTION: A signal switching device includes: a process-side connector (31) which is connectable to a process-side circuit using a pre-mounted connector of the process-side circuit; two controller-side connectors (32, 33) which are connectable to two respective controller-side circuit using a pre-mounted connector of each of the two controller-side circuit; a power supply connector (34) to be connected to an external power supply; a signal processing circuit section (2, 4) which either generates and outputs a first desired signal based on an input signal from the process-side circuit received via the process-side connector or generates and outputs a second desired signal based on an input signal from each of the two controller-side circuits received via the two controller-side connectors. |
