Compare Commands And Queries; Trigger Configuration Commands - Fluke 8808A User Manual

8808A
Users Manual

Compare Commands and Queries

Table 4-13 describes the compare commands and queries. These commands cause the
Meter to determine whether a measurement is higher than, lower than, or within a
specified range. These commands correspond with C, U and V on the front
panel.
Command
COMP
COMP?
COMPCLR
COMPHI <high value>
COMPLO <low value>
HOLDCLR

Trigger Configuration Commands

Table 4-14 describes the trigger configuration commands, which set and return the trigger
configuration.
Command
TRIGGER <type>
TRIGGER?
4-24
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Table 4-13. Compare Commands and Queries
Meter enters compare (COMP) function. Touch Hold is automatically turned
on. (Touch Hold can be turned off with HOLDCLR command.)
Meter returns Hl if the last COMP measurement reading was above the upper
limit of the compare range; LO if it was below the lower limit of the compare
range; PASS if within compare range; or a dash (—) if a measurement has
not completed.
Meter exits compare function (and Touch Hold if it is selected) and restores
display to normal operation.
Sets HI compare (COMP) value to <high value>.
<high value> can be a signed integer, signed real number without exponent,
or signed real number with exponent.
Sets LO compare (COMP) value to <low value>.
<low value> can be a signed integer, signed real number without exponent, or
signed real number with exponent.
Meter exits Touch Hold and restores display to normal operation, but does not
exit the compare function.
Table 4-14. Trigger Configuration Commands
Sets the trigger configuration to <type> where <type> is the number in the
Type column of Table 4-3 that corresponds with the applicable trigger, rear
trigger and setting delay. If the <type> entered is not between 1 and 5, an
Execution Error is generated.
Select a trigger type with settling delay enabled (trigger type 3 or 5) when the
input signal is not stable before a measurement is triggered. Typical settling
delays are provided in Table 4-3.
Returns the trigger type set by the TRIGGER command.
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