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Model 6517A Getting Started Manual Remote Operation 3-19

'Example program to demonstrate changing function and range,

'taking readings on various functions

'For QuickBASIC 4.5 and KPC-488.2/CEC interface card

'Edit the following line to where the QuickBASIC

'libraries are on your computer

'$INCLUDE: 'c:\qb45\ieeeqb.bi'

'Initialize the interface as address 21

CALL initialize(21, 0)

'Reset the SENSe1 subsystem settings, along with the trigger

'model, each READ? will cause one trigger

CALL SEND(27, "*rst", status%)

'Set range for each function to measure

CALL SEND(27, "volt:dc:rang 10", status%)

CALL SEND(27, "curr:dc:rang 0.003", status%)

CALL SEND(27, "res:rang 10e6", status%)

'Switch to volts and take reading

CALL SEND(27, "func 'volt:dc';:read?", status%)

reading$ = SPACE$(80)

CALL ENTER(reading$, length%, 27, status%)

PRINT reading$

'Switch to current and take reading

CALL SEND(27, "func 'curr:dc';:read?", status%)

reading$ = SPACE$(80)

CALL ENTER(reading$, length%, 27, status%)

PRINT reading$

'Switch to 2-wire ohms and take reading

CALL SEND(27, "func 'res';:read?", status%)

reading$ = SPACE$(80)

CALL ENTER(reading$, length%, 27, status%)

PRINT reading$

One-shot triggering

Our older instruments generally have two types of triggering: one-shot and continuous. In

one-shot, each activation of the selected trigger source causes one reading. In continuous,

the instrument is idle until the trigger source is activated, at which time it begins taking

readings at a speciﬁed rate. Typical trigger sources for non-SCPI instruments are:

• IEEE-488 talk

• IEEE-488 Group Execute Trigger (GET)

• “X” command

• External trigger (rear panel BNC)

Keithley 6517A Getting Started Guide

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