Trigger:block:branch:delta - Keithley 2450 Reference Manual

Section 6: SCPI command reference

: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 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 measurement block, it will compare measurements of a measure 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.
Example
TRIG:BLOC:BRAN:DELT 5, 0.5, 7, 4
Also see
Delta (on page 3-100)
6-130
Model 2450 Interactive SourceMeter® Instrument Reference Manual
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 the <targetDifference>
The block number of the measurement block that makes the measurements to
be compared
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.
2450-901-01 Rev. B/September 2013
Default value
Not applicable