HP 132A Manual de usuario descargar pdf (Pagina 153)

Chapter 3 Programming Your Universal Counter for Remote Operation

Elements of SCPI Commands

Programming Guide 3-85

To Read and Store Calibration Data (QuickBASIC)

'Before calibrating the counter, it is a good idea to read

'and store the current calibration values in case something goes wrong with

'the calibration.

'This program reads the cal values, and stores them in a file on the computer

'hard drive. It then reads the data from the file and sends it back to

'the counter.

'The SUB sendhp sends commands to the counter

DECLARE SUB sendhp (code$)

REM $INCLUDE: 'QBSETUP.BAS' 'Required by HP 82335A

DIM SHARED source AS LONG 'Address and select code

DIM CALDATA AS STRING * 61 'Strings to be read

source& = 703 'Counter at address 3

isc& = 7 'Select code 7

state% = 1

CLS 0

CALL IOEOI(isc&, state%) 'Make sure EOI enabled

CALL IOCLEAR(source&) 'Clear the counter and interface

CALL sendhp("*RST") 'Reset HP counter

CALL sendhp("*CLS") 'Clear event registers and error queue

CALL sendhp("*SRE 0") 'Clear service request enable register

CALL sendhp("*ESE 0") 'Clear event status enable register

CALL sendhp(":STAT:PRES") 'Preset enable registers and transition

'filters for operation and questionable

'status structures.

PRINT "Reading Calibration Data"

CALL sendhp(":CAL:DATA?")

CALL ioenters(source&, CALDATA, 61, actf%) 'Read the ASCII characters

OPEN "CALDATA.DAT" FOR BINARY AS #1 'Store the cal data in a file

PUT #1, 1, CALDATA

CLOSE #1

'The following lines show how to open a file with calibration data

'and send it back to the counter.

PRINT "Sending calibration data to counter"

OPEN "CALDATA.DAT" FOR BINARY AS #1

GET #1, 1, CALDATA

CLOSE #1

CALL sendhp(":CAL:DATA " + CALDATA) 'Send the data just read to counter

END

SUB sendhp (code$)

CALL iooutputs(source, code$, LEN(code$))

END SUB

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