Agilent Technologies Infiniium 8000A Programmer's Reference Manual page 422

Limit Test Commands
The Limit Test commands and queries control the limit test features of
the oscilloscope. Limit testing automatically compares measurement
results with pass or fail limits. The limit test tracks up to four
measurements. The action taken when the test fails is also controlled
with commands in this subsystem.
The Limit Test subsystem contains the following commands:
• FAIL
• LLIMit (Lower Limit)
• MEASurement
• RESults?
• TEST
• ULIMit (Upper Limit)
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