Keithley 2002 Getting Started Manual

Storing readings in buffer
The reading buffer in the Model 2002 is flexible and capable. It has four controls, which are
found in the
TRACe susbsystem. There are commands to control:
• The size of the buffer (in readings).
TRACe:POINts <NRf>
• Whether or not extra data is stored with each reading (e.g., channel number, timestamp).
Storing extra data reduces the maximum size of the buffer.
TRACe:EGRoup FULL include extra data
TRACe:EGRoup COMPact exclude extra data
• Where the data is coming from (before or after the CALCulate1 math post-processing).
TRACe:FEED SENSe1 store unprocessed readings
TRACe:FEED CALCualte1 store math processed readings
• Select buffer control mode.
TRACe:FEED:CONTrol NEVer immediately stop storing readings
TRACe:FEED:CONTrol NEXT start now, stop when buffer is full
TRACe:FEED:CONTrol ALWays start now, never stop
TRACe:FEED:CONTrol PRETrigger start now, stop when pretrigger is satisfied
The following example program sets up the Model 2002 to take 20 readings as fast as it can
into the buffer, then reads the data back after the buffer has filled. The readings will be stored
with the timestamp, etc., but the program reads back only the reading values and timestamp.
3-24 IEEE-488 Bus Operation

Keithley 2002 Specifications

General

Brand	Keithley
Model	2002
Category	Multimeter
Language	English