Q: The IO port of the test instrument cannot control the instrument

A:

1. Confirm whether the wiring is correct, such as START/GND/PASS/FAIL.

2. Low level start test;

3, output terminal state measurement;

If you can't solve the problem according to the above content, you can call Qingdao Ruijie Intelligent Instrument Co., LTD. After-sales service hotline 0532-58723003