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Remote Operation: What SCPI Commands Maximize the Measurement Speed of my Integra Mainframe?

问题:

Remote Operation: What SCPI Commands Maximize the Measurement Speed of my Integra Mainframe?

答案:

Product(s) : 2700, 2701 and 2750

Question : How can the Integra Series be configured for maximum measurement speed?

 


Answer: The maximum measurement speed of an Integra Series mainframe is:
Model
Speed
2700
2000 rdgs/sec
2750
2500 rdgs/sec
2701
3500 rdgs/sec

Maximum speed is achieved by remote programming through RS-232 or GPIB or ethernet in the case of the 2701. The data is stored in the mainframe's scratch pad memory using the :READ? command. This is used instead of the TRACE buffer for absolute maximum speed. Use the following commands to configure for maximum speed.

*RST

Reset the Model 2700

:SENSE:FUNCTION 'VOLT:DC'

Set for DCV

:FORMAT:ELEMENT READ

Format statement for readings only

:SYSTEM:AZERO:STATE OFF

Turn off Auto Zero function

:SENSE:VOLT:DC:AVERAGE:STATE OFF

Turn off the filter for DCV

:SENSE:VOLT:DC:NPLC 0.01

Integration rate to 0.01 line cycles

:SENSE:VOLT:DC:RANGE 10

Set fixed range of 10V

:SENSE:VOLT:DC:DIGITS 4

Set resolution to 3 ½ digits

:TRIGGER:COUNT 1

Set trigger count to 1

:SAMPLE:COUNT 1000

Set sample count 1000

:TRIGGER:DELAY 0.0

Set trigger delay to zero

:DISPLAY:ENABLE OFF

Turn off the display

:READ?

Send the :READ? Command

Your Code to Read the data

These are the basic commands to setup the Integra mainframe for maximum measurement speed. This command set configuration does not include any scanning time nor the time required to transfer the data across the bus. This is just the measurement speed and storage into an internal buffer. Use of switching modules would introduce additional overhead and reduce the overall throughput.

To verify the performance, apply a 1 Hz sine wave to the front voltage terminals. Acquire a buffer equal in size to the maximum reading rate for your particular model of instrument, e.g., 2500 readings for Model 2750. When the data are returned to your program, they will comprise one full cycle of the applied waveform.


©Copyright 2003, Keithley Instruments, Inc.


此常见问题适用于:

产品系列: Keithley 2700 万用表/数据采集/开关系统

产品:

常见问题 ID 71681

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