2470 High Voltage SourceMeter Instrument Reference Manual
Section 4: Sourcing and measuring
2470-901-01 Rev. A /
May
2019
4-85
Configuration lists and the trigger model
Think of the trigger model as the execution engine that makes the instrument do things. Configuration
lists provide a database of stored settings that the trigger model can recall, changing the settings of
the instrument. This may be done at any time during trigger model execution. Refer to
(on page 8-27) for more information.
What is a configuration index?
A configuration index contains a copy of all instrument source or measure active settings at a specific
point in time. You store configuration indexes in a specific configuration list. The amount of available
memory and the number of changes between indexes limit the number of configuration indexes that
you can store in a configuration list. More changes between indexes increase the amount of memory
needed and reduce the number of indexes you can store. Lists with minimal changes between the
indexes may exceed 1,000,000 indexes.
To overwrite an existing index, you can provide the new index when you store the configuration index.
Otherwise, the instrument appends the new configuration index to the end of the list. The index starts
at 1.
The first time you create a configuration index and store into it, the instrument stores the active
settings to configuration index 1. Each time you store another set of active settings to the same list,
the instrument creates a new configuration index and appends it to the list using the next
chronological index.
You can use the index number to identify a specific configuration index and perform operations on it
when necessary.
Although you can specify a specific configuration index when you store active settings to a
configuration list, this is only necessary if you wish to overwrite an existing point. Normally, you can
build up the configuration indexes in a configuration list by appending (no index specified) subsequent
configuration indexes to the list.
If you only store one configuration index to a list, the list consists of configuration index 1.
