Trigger:block:branch:delta - Keithley 2461 Reference Manual

Model 2461 Interactive SourceMeter® Instrument Reference Manual

:TRIGger:BLOCk:BRANch:DELTa

This command defines a trigger model block that goes to a specified block if the difference of two measurements
meets preset criteria.
Type
Command only
Usage
:TRIGger:BLOCk:BRANch:DELTa <blockNumber>, <targetDifference>, <branchToBlock>
:TRIGger:BLOCk:BRANch:DELTa <blockNumber>, <targetDifference>, <branchToBlock>,
<measureBlock>
<blockNumber>
<targetDifference>
<branchToBlock>
<measureBlock>
Details
This block calculates the difference between the last two measurements from a measure or digitize
block. It subtracts the most recent measurement from the previous measurement.
The difference between the measurements is compared to the target difference. If the difference is
less than the target difference, the trigger model goes to the specified branching block. If the
difference is more than the target difference, the trigger model proceeds to the next block in the
trigger block sequence.
If you do not define the measure or digitize block, it will compare measurements of a measure or
digitize block that precedes the branch delta block. For example, if you have a measure block, a wait
block, another measure block, another wait block, and then the branch delta block, the delta block
compares the measurements from the second measure block. If a preceding measure or digitize
block does not exist, an error occurs.
Example
TRIG:BLOC:BRAN:DELT 5, 0.5, 7, 4
Also see
Delta block
2461-901-01 A/November 2015
Affected by
Recall settings
Instrument reset
Power cycle
The sequence of the block in the trigger model
The value against which the block compares the difference between the
measurements
The block number of the trigger model block to execute when the difference
between the measurements is less than or equal to the
<targetDifference>
The block number of the measure or digitize block that makes the
measurements to be compared; if this is 0 or undefined, the trigger model uses
the previous measure or digitize block
(on page 3-120)
Section 6: SCPI command reference
Where saved
Save settings
Configure trigger block 5 to compare the
differences between the measurements made in
block 4. If the difference between them is less
the 0.5, branch to block 7.
Default value
Not applicable
6-189