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4 Using the Regenerative Power System
For both current and voltage lists:
The number of points in each list can range from 3 to 1024.
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Both lists must contain the same number of points.
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For the voltage list:
The first value must be 0 (a range of ±10 mV is allowed).
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The point values must be strictly monotonically increasing. Adjacent values cannot be equal.
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For the current list:
The point values must be monotonically decreasing. Adjacent values cannot be equal.
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The last value must be 0 (a range of ±0.3 mA is allowed).
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Use the following commands to program the table parameters into the instrument's memory:
Front Panel Menu Reference
Not available
Use the following command to activate the table, which runs the curve using the table points.
Front Panel Menu Reference
Select Output\SAS\Table.
Select either table 1 or table 2.
If the points do not represent a valid data set, an error will be generated.
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Use the following commands to query the number of data points in the current and voltage tables.
Front Panel Menu Reference
Select Output\SAS\Table.
The dialog shows which table is active.
Programming Multiple Tables
If no table number is specified [1 or 2], the commands defaults to Table 1.
As previously discussed, and shown in the top part of the following diagram, SAS:TABLe commands
load voltage or current data into the memory of the instrument. To use a table once it has been loaded
into memory, it must be transferred Into the SAS system location. The SAS:TABLe:ACTivate command
moves (updates) the data into the SAS system and selects the table for the power stage.
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SCPI Command
To program a current table list:
SAS:TABL[1|2]:CURR <current>{,<current>}
To program a voltage table list:
SAS:TABL[1|2]:VOLT <voltage>{,<voltage>}
SCPI Command
To activate the current and voltage tables:
SAS:TABL:ACT 1
SCPI Command
To query the current and voltage table points:
SAS:TABL[1|2]:CURR:POIN?
SAS:TABL[1|2]:VOLT:POIN?
Keysight RP7970 & RP7980 Series Operating and Service Guide
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