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Example Programs E-7

Taking readings using the :READ? command

This programming example demonstrates a simple method for taking and displaying (on the

computer CRT) a speciﬁed number of readings. The number of readings is speciﬁed by the

:SAMPle:COUNt command. When :READ? is asserted, the speciﬁed number of readings is

taken. After all the readings are taken, they are sent to the computer. Note that these readings are

also stored in the buffer.

The following program takes 10 readings on the DCV1 function and displays them on the

computer CRT.

' For QuickBASIC 4.5 and CEC PC488 interface card

' edit the following line to where the QuickBASIC libraries are

' on your computer

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

' Initialize the CEC interface as address 21

CALL initialize(21, 0)

' Reset controls, clear buffer and place 2182 in idle

CALL SEND(7, "*rst", status%)

CALL SEND(7, "trac:cle", status%)

CALL SEND(7, "sample:coun 10", status%)

CALL SEND(7, "form:elem read,unit", status%)

CALL SEND(7, "read?", status%)

reading$ = SPACE$ (300)

CALL ENTER(reading$, length%, 16, status%)

PRINT reading$

Keithley 2182 User Manual

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