Fluke CombiScope PM3370B - Page 88

USING THE COMBISCOPE INSTRUMENTS 3 - 69
PROGRAM EXAMPLE:
’
*****
’Calibrate the instrument and print the calibration result.
’
*****
CALL Send (0, 8, "
*
CAL?", 1) ’
Starts the calibration
CALL IbTMO(0, 0) ’
Disables the time out mechanism
response$ = " "
CALL Receive (0, 8, response$, 256)
’
Waits for the calibration to finish and reads the result
.
’
CALL IbTMO(0, 13) ’
Sets time out back to 10 seconds
IF LEFT$(response$, 1) = "0" THEN ’
0 = okay
PRINT "Calibration okay"
ELSE ’
1 = wrong
PRINT "Calibration not successful"
ENDIF
PROGRAMMING NOTE:
Status bit 0 in the operation status can be used to generate a Service Request
(SRQ) when the calibration is finished, i.e., when bit 0 becomes zero. This gives
you the advantage that the program can do something else until the SRQ is
generated. Therefore, program the following:
ON PEN GOSUB ServReq ’
Defines "ServReq" routine call after SRQ
PEN ON ’
Enables SRQ mechanism
Send
→
STATus:OPERation:NTRansition 1
’
Sets bit 0 (Calibration) true in the case of negative transition (from 1 to 0).
Send
→
STATus:OPERation:ENABle 1
’
Enables bit 0 for being reported in the standard status byte (STB).
Send
→
*SRE 128
’
Enables bit 7 (OPER) in Service Request Enable (SRE) register for generation of an SRQ.
Send
→
*RST ’
Resets the instrument
Send
→
*CLS ’
Clears the status data
Send
→
CALibration ’
Starts auto calibration