Constants Used Throughout This Document - Agilent Technologies 8719ET Programmer's Manual

Constants Used Throughout This Document

NOTE The logic values attached to pass and fail indicators were chosen to be
consistent with the current logic used in the standard OUTPLIML and
OUTPLIMF commands.
Table 7-14 Pass/Fail/No_Limit Status Constants
Status Definition
PASS
FAIL
NO_LIMIT
Table 7-14 is an interpretation of the Pass/Fail/No_Limit status constants. These constants
are used to identify the Pass/Fail/No_Limit state on the data strings if status is returned.
Table 7-15 Min/Max Test Constants
String
NO_DATA
Table 7-15 is an interpretation of the min/max test constants. If the selected segment has
no associated limit, the NO_DATA string is generated, which reports a stimulus value of 0
and a data value of −1000.
Output Limit Test Pass/Fail Status Per Limit Segment
Two commands allow you to query the pass/fail test status on a limit segment basis.
• SELSEG<num> will select the segment.
• OUTPSEGF will return the status of the limit test for that segment: 1 (PASS), 0 (FAIL) or
−1 (NO_LIMIT) if no limit exists for the selected segment number. Due to the
non-sequential numbering of actual limit line segments on the screen, some segment
numbers will have no associated limits and will thus return −1 (NO_LIMIT).
Under the following conditions, OUTPSEGF will issue the following errors:
If the limit testing is off: "30: Requested Data Not Currently Available." To clear the
error message, turn the limit test on.
If the limit table is empty: "204: Limit Table Empty" (this is a new message). To clear
the error message, enter a limit table.
In both cases, the error is issued and the command responds with −1 (NO_LIMIT).
The argument for SELSEG<num> is limited by the maximum number of segments allowed in
the limit table, which is currently 18. The minimum value for the argument is 1. If the
user inputs a number that is outside this range, the active entry limits are invoked,
causing the analyzer to return the status for limit 18.
Chapter 7
Status Indicator
1
0
−1
Stimulus Value
0
Programming Examples
Limit Line and Data Point Special Functions
Data Value
−1000
7-131