Keithley 2461, Reference Manual, Page: 949 / 1109

Section 8: TSP command reference Model 2461 Interactive SourceMeter® Instrument Reference Manual
8-276 2461-901-01 A/November 2015
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
trigger.model.setblock(5, trigger.BLOCK_BRANCH_DELTA, 0.35, 8, 3)
Configure trigger block 5 to branch to block 8 when the measurement difference from block 3 is less than 0.35.
Also see
Delta block (on page 3-120)