Chapter 4 Features and Functions

Scanning

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The MEASure?, CONFigure, and ROUTe:SCAN commands contain a

tr” parameter which defines the list of channels in the scan list. Note that each time you send one of these commands, it redefines the scan list. To determine which channels are currently in the scan list, you can send the ROUTe:SCAN? query command.

To initiate a scan, execute the MEASure?, READ?, or INITiate command. The MEASure? and READ? commands send readings

 

directly to the instrument’s output buffer but readings tx

stored

 

 

in memory. The INITiate command stores readings in memory.

 

 

Use the FETCh? command to retrieve stored readings from memory.

 

 

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When you reconfigure a channel and add it to the scan list using

 

MEASure? or CONFigure, it is important to note that the previous configuration on that channel is lost. For example, assume that a channel is configured for dc voltage measurements. When you reconfigure that channel for thermocouple measurements,

the previous range, resolution, and channel delay are set to their Factory Reset (*RST command) state.

Each time you initiate a new scan, the instrument clears all previously stored readings.

To stop a scan, execute the ABORt command.

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