| 摘要 |
PROBLEM TO BE SOLVED: To provide a digital input module checker capable of detecting quality of a digital input module and quality of sensitivity thereof. SOLUTION: The digital input module checker is configured such that a relay is mounted, plugs 10a, 10b are included which are inserted, respectively, into two terminals 6a, 6b to be short-circuited as an external contact is closed with operation of the relay, a variable resistor 8b which adjusts sensitivity by limiting a current to be supplied to a digital input module 1 via the terminals 6a, 6b is connected in series with a snap switch 9 for turning on/off the circuit, and the variable resistor 8b and the snap switch 9 can be inserted into the terminals 6a, 6b via the plugs 10a, 10b. COPYRIGHT: (C)2009,JPO&INPIT |
