Control Circuits; In Case Of Trouble - HP 61010A Owner's Manual

Handshake
Control Circuits
In Case
of Trouble
If either of these two checks fail, then the test fails.
However, the test can also fail if the selected input or
output bit is not functioning correctly. If the test does fail,
try a different input and output bit and repeat the test.
This lets you determine if the problem is with the
programmable input threshold or with a particular input or
output bit.
To perform the handshake control circuit test, you must
connect the input handshake signals to the output
handshake signals with the clip leads. The necessary
connections are displayed on the computer's screen. The
handshake signals are tested with the handshake enabled
as well as with the handshake disabled by examining the
contents of the Digital I/O's status register during input
and output data transfers.
If there is a problem with any of the handshake signals,
the test will fail.
It is important that you complete all verification tests on
both the system and instrument level. If you Digital I/O
does not pass' these tests, consult your PC Instruments
Support Guide for information on the PC Instruments
exchange program.
Verification Procedures B-3