AMETEK Lx Series II Programming Manual - Manual (Page 83)

Programming Manual Lx \ Ls Series II
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4.19 Source Subsystem - List
This subsystem controls the generation of complex sequences of output changes with rapid,
precise timing and synchronized with internal or external signals. Each subsystem command for
which lists can be generated has an associated list of values that specify the output at each list
step. LIST:COUNt determines how many times the AC source sequences through a list before
that list is completed. LIST:DWELl specifies the time interval that each value (point) of a list is to
remain in effect. LIST:STEP detemines if a trigger causes a list to advance only to its next point or
to sequence through all of its points.
All active subsystems that have their modes set to LIST must have the same number of points (up
to 100), or an error is generated when the first list point is triggered. The only exception is a list
consisting of only one point. Such a list is treated as if it had the same number of points as the
other lists, with all of the implied points having the same value as the one specified point. All list
point data is stored in nonvolatile memory.
MODE commands such as VOLTage:MODE LIST are used to activate lists for specific functions
(See . However, the LIST:DWELl command is active whenever any function is set to list mode.
Therefore, LIST:DWELl must always be set either to one point, or to the same number of points
as the active list.
Subsystem Syntax
[SOURce:]
LIST
:COUNt | INFinity Sets the list repeat count
:DWELl {,} Sets the list of dwell times
:POINts? Returns the number of dwell list points
:FREQuency
[:LEVel] {,} Sets the frequency list
:POINts? Returns the number of frequency points
:SLEW {,} Sets the frequency slew list
:POINts? Returns the number of frequency slew points
:MODE BOT | EOT Sets the list operation mode
:PHASe {,} Sets the phase list
:POINts? Returns the number of phase list points
:SHAPe {,} Sets the waveform shape list
:POINts? Returns the number of shape list points
:STEP ONCE | AUTO Defines whether list is dwell- or trigger-paced
:TTLTrg {,} Defines the output marker list
:POINts? Returns the number of output marker list points
:VOLTage
[:LEVel] {,} Sets the voltage list
:POINts? Returns the number of voltage level points
:SLEW {,} Sets the voltage slew list
:POINts? Returns the number of voltage slew points