Section 8: Triggering
2470 High Voltage SourceMeter Instrument Reference Manual
8-28
2470-901-01 Rev. A /
May
2019
Trigger model blocks
Each trigger model consists of blocks that can be combined to create the trigger model. The blocks
can be combined from the front panel or by sending remote commands. You can connect a maximum
of 63 blocks as needed to control the instrument.
You can combine trigger model blocks as you would construct a flow chart diagram. Trigger models
are created using these fundamental blocks:
•
Wait:
Waits for an event to occur before the flow continues
•
Action:
Starts an action in the instrument, such as making a measurement or clearing a buffer
•
Notify:
Notifies other equipment or timers that an event has occurred
•
Branch:
Branches when a condition has been satisfied
Each type of block is described in the following topics.
Buffer clear block
When trigger model execution reaches the buffer clear trigger block, the instrument empties the
specified reading buffer. The specified buffer can be the default buffer or a buffer that you defined.
For more information about reading buffers, refer to
(on page 6-1).
When you select the buffer clear block, the following option is available.
Setting
Description
Reading Buffer
The name of the buffer to clear.
Measure block
When trigger model execution reaches this block:
1.
The instrument begins making a measurement.
2.
The trigger model execution waits for the measurement to be made.
3.
The instrument processes the reading and places it into the specified reading buffer.
When you set the count to a finite value, trigger model execution remains at the block until all
operations are complete. If you set the count to infinite, the trigger model executes subsequent blocks
and measurements continue in the background until the trigger model execution reaches another
measure block, a wait block, or until the trigger model ends.
You must select a measure function before running a trigger model that contains this block.
There is a 2 µs delay after the block makes the last measurement in the count.
