Appendix E: Performance Verification
VX4801 Programmable Digital I/O Module A–33
e. Send a byte 5 input command to the VX4801 and verify that the DAK
light is on. Then read the data, observe a response of AA, perform a
second read and observe that the VX4801 is again waiting for a DRD
strobe:
(Observe VX4801 DAK light off)
(Observe DAK light on)
(Observe AA response)
(Observe N response, indicating waiting for DRD)
This completes the VX4801 verification procedure.