*TST?
The *TST? (TeST) query initiates an internal self-test of the 8990B and returns a
pass or fail indication where:
– 0 is returned if all tests pass, or
– 1 is returned if one or more tests fail.
Syntax
Example
*TST?
Keysight 8990B Programming Guide
?
*TST
Performs a self-test and returns a pass or fail indication.
IEEE-488 Command Reference
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