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Agilent Technologies 6038A 6010A Manuale Utente

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Programming the Agilent 603xA Power Supplies Using Basic
117
120
!
130
DEF FNSettled(OPTIONAL Band, Rdgs.Timelimit)
140 !
    BAND=SETTLING BAND IN VOLTS
150 !
    RDGS=READINGS WITHIN BAND
160 !
    TIMELIMIT=SETTLING TIME ALLOWED, SECONDS
170
COM /Ps/ @Ps
180
OUTPUT @Ps:”VSET?”
190
ENTER @Ps;Vset
200
SET TIMEDATE 2.1E+11
210
!
220
Band_p=.01
230
Rdgs_p=2
240
Timelimit_p=5
250
Counter=0
260
!
270
IF NPAR>0 THEN Band_p=Band
280
IF NPAR>l THEN Rdgs_p=Rdgs
290
IF NPAR>2 THEN Timelimit_p=Timelimit
300
!
310
WHILE FNElapsed_time<Timelimit_p
320
    IF ABS(FNVout-Vset)<Band_p THEN
330
        Counter=Counter+l
340
     IF Counter>=Rdgs p THEN RETURN l
350
    ELSE
360
      Counter=0
370
   END IF
380
END WHILE
390
!
400
RETURN 0
410
FNEND
420
!
430
!
440
DEF FNVout
450
COM /Ps/ @Ps
460
OUTPUT @Ps; “VOUT?”
470
ENTER @Ps;Vout
480
RETURN Vout
490
FNEND
500
!
510
!
520
DEF FNElapsed_time
530
RETURN TIMEDATE-2.1E+11
540
FNEND
 Explanation:
10: 
Assign I/O path name for power supply
20: 
Declare common block for I/O path name
30: 
Clear power supply, set voltage to 20 Volts, current limit to 2 Amps
50: 
Downprogram power supply to 100 mV
60: 
Format statement for display
70,90:
If P.S. output has settled to within 20 mV of programmed value (for 5 consecutive readings) print message
130:
Define FN settled. (optional parameters described in lines 140-160)
170: 
Bring in common block for I/O path name
180,190: 
Read set value for voltage into VSET
200: 
Initialize real time clock in computer
220-250:
Assign default values to variables corresponding to elements in parameter list. (Cannot
                
reference optional parameters in context if not passed in parameter list.)
270-290: 
If parameters are passed, assign values to corresponding subprogram variables
310-380: 
Repeat 320-370 until time limit is reached
320-330: 
If absolute value of output voltage (-Set voltage is within settling band) increment 
counter
340: 
If counter=Desired number of readings within band, return 1
360: 
If voltage left setting band, reset counter
400: 
If time has elapsed, return 0
440-490: 
Function reads and returns output voltage
520-540: 
Function returns time elapsed since real time clock was initialized on line 200