During an I/O test on the Teach Pendant, what confirms wiring and control logic are correct?

• A. The I/O test page automatically rewires the hardware.
• B. Outputs should stay constant while inputs are ignored.
• C. Outputs toggle as commanded and inputs reflect the expected status to verify wiring and control logic.
• D. Only outputs need to be checked for a pass.

Answer: (C)

During an I/O test, you’re confirming both sides of the I/O are wired and mapped correctly. The essence is to drive outputs and watch the corresponding inputs to see that the system responds exactly as commanded. When you toggle an output, the connected device should energize; and the matching input should reflect that same on/off status. Doing this in tandem validates that the wiring from controller to device is correct and that the control logic properly maps commands to the right signals. If the outputs change but the inputs don’t reflect the expected state (or vice versa), there’s likely a wiring issue, a misassignment in the I/O map, or a faulty device. The test page won’t rewire hardware by itself, and checking only outputs or ignoring inputs wouldn’t reveal these problems, so the key confirmation is that outputs toggle as commanded and inputs show the expected status.