BNC 1105 Universal Counter - Manual (Page 111)

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This will be set to ON after the counter has been turned off or a remote interface
reset.
When this is set to ON, the following will be done whenever :INIT[:IMM]
or :INIT:CONT ON is executed:
The limit data gets cleared.
The :CALC2:LIM:FAIL, :CALC2:LIM:FCO
and :CALC2:LIM:PCO information gets cleared.
The Limit-Detect output of the RS-232 connector is set to the in-limit voltage level.
:CALCulate2:LIMit:CLEar[:IMMediate]
Instructs the counter to invalidate the limit data immediately, and
clear :CALC2:LIM:FAIL, :CALC2:LIM:FCO and :CALC2:LIM:PCO information, and also
sets the limit-detect output of the RS-232 connector to the in-limit voltage level.
Note
If the limit state is set to OFF, error -221 will be generated.
:CALCulate2:LIMit:DISPlay GRAPh|NUMBer
To execute the command for the display in number or graph, the display will show both
result, number and graph.
Return
A sequence of ASCII-encoded byte. GRAP means graphic and NUMB means numeric.
:CALCulate2:LIMit:FAIL?
Queries the status of the last measurement that was limit tested.
Return
A single ASCII-encoded byte is returned. 0 means that the last measurement has
passed the limit test, and 1 means that it failed the test.
Notes
If there is no valid measurement result, a “0” will be returned and error -230 will be
generated.
If this command is sent when limit test is on and a measurement is in progress, the
response will not be available until the measurement is completed, and it also holds
off the subsequent commands unless there is a device clear or a power cycle.