Section 8: Triggering
2470 High Voltage SourceMeter Instrument Reference Manual
8-40
2470-901-01 Rev. A /
May
2019
Setting
Description
Low Limit
The lower limit that the measurement is compared against. If the
type is set to:
Inside: The low limit that the measurement is compared
against
Above: This value is ignored
Below: The measurement must be below this value
Outside: The low limit that the measurement is compared
against
Measure Block
The block number of the block that makes the reading to be
compared; from the front panel, you can set this to Previous to use
the previous measure block.
When you select a Limit Type of Inside or Outside, two buttons display below the Limit Type button.
The button on the left is the Low Limit and the button on the right is the High Limit.
Dynamic Limit block
The branch-on-dynamic-limits block defines a trigger model block that goes to a specified block in the
trigger model if a measurement meets user-defined criteria.
When you define this block, you set:
•
The type of limit (above, below, inside, or outside the limit values)
•
The limit number (you can have 1 or 2 limits)
•
The block to go to if the measurement meets the criteria
•
The block that makes the measurement that is compared to the limits; the last measurement from
that block is used
There are two user-defined limits: limit 1 and limit 2. Both include their own high and low values,
which are set using the front-panel Calculations limit settings or through commands. The results of
these limit tests are recorded in the reading buffer that accompanies each stored reading.
Limit values are stored in the measure configuration list, so you can use a configuration list to step
through different limit values.
The measure block must occur in the trigger model before the branch-on-dynamic-limits block. If no
block is defined, the measurement from the previous measure block is used. If no previous measure
block exists, an error is reported.
