Quantum Data 802BT - Manual (Page 225)

Video Test Generator User Guide 215
*TST
self TeST
Class GPIB port control
Definition: Causes the 882 to perform a self-test and report the results in a response message. If the
self-test fails, an ASCII "1" is placed in the output buffer; otherwise, an ASCII "0" is placed
in the output buffer.
Query syntax *TST?
Returns result<NL>
Where result is in integer NR1 form.