User manual

IEEE-488 Reference

3-90

'PRINT #1, "output 16; :rout:scan:rat:mch (@ 2); mch?" ' Select and query

reference channel

PRINT #1, "enter 16" ' Get response mes-

sage from 2002

:LSELect <name>

:ROUTe:SCAN:LSELect <name> Perform speciﬁed scan operation

<name> = INTernal Enable scan for internal scanner card

EXTernal Enable scan for external scanner card

RATio Perform ratio calculation

DELTa Perform delta calculation

NONE Disable all scan operations

:LSELect? Query scan operation

This command is used to select and perform the desired scan operation. When INTernal is se-

lected, the Model 2002 scans the channels of the internal switching card according to how the

scan is conﬁgured (see :ROUTe:SCAN[:INTernal]). EXTernal is used to measure channels that

are controlled by an external switch system. When EXTernal is selected, the Model 2002 scans

the external scan list (see :SCAN:EXTernal).

With RATio or DELTa selected, the Model 2002 performs the appropriate math calculation us-

ing the speciﬁed reference channel and measure channel (see :RCHannel and :MCHannel).

The NONE selection disables all operations associated with a scan.

PRINT #1, "output 16; :syst:pres" ' Return 2002 to defaults

PRINT #1, "output 16; :rout:scan:lse1 int" ' Scan internal channels

Program fragment

Parameters

Query

Description

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