Programming Some Power Supply Functions

SAMPLE FOR POWER SUPPLY AT STAND-ALONE ADDRESS 6. SEQUENCE SETS UP CV MODE OPERATION, FORCES SUPPLY TO SWITCH TO CC MODE, AND DETECTS AND REPORTS MODE CHANGE.

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Controller Using Agilent 82335A Interface

 

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5

‘ < --------------- Merge SETUP.BAS here -------------------- >

 

1000

MAX.ELEMENTS=2 : ACTUAL.ELEMENTS=O :MAX.LENGTH=80 :ACT.LENGTH=O

1005

DIM OUTPUTS(2) :CDDES$=SPACE$(40)

 

1010

ISC=7 :PS=706

 

1015

 

1020

'Set up the Power Supply Interface for DOS driver

 

1025

CALL IORESET (ISC)

'Reset the interface

1030

IF PCIB.ERR < > NOERR THEN ERROR PCIB.BASERR

 

1035

TIMEOUT=3

 

1040

CALL IOTIMEOUT (ISC, TIMEOUT)

'Set timeout to 3 seconds

1045

IF PCIB.ERR < > NOERR THEN ERROR PCIB.BASERR

 

1050

CALL IOCLEAR (ISC)

'Clear the interface

1055

IF PCIB.ERR <> NOERR THEN ERROR PCIB.BASERR

 

1060

CALL IOREMOTE (ISC)

'Set Power Supply to remote mode

1065

IF PCIB.ERR <> NOERR THEN ERROR PCIB.BASERR

 

1070

 

1075

'Program power supply to CV mode with following voltage and current

 

1080

CODES$ = "VOLTAGE 7.8;CURRENT 480"

:GOSUB 2000

1085

 

1090

'Query power supply outputs & print to screen

 

1095

CODES$ = "MEASURE:VOLTAGE?;CURRENT?"

:GOSUB 2000 :GOSUB 3000

1100

VOUT = OUTPUTS(I)

 

1105

IOUT = OUTPUTS(2)

 

1110

PRINT "The output levels are "VOUT" Volts and "IOUT" Amps"

 

1115

 

1120

'Program triggered current level to value insufficient to maintain

 

1125

'supply within its CV operating characteristic

 

1130

CODES$ = "CURR:TRIG 50"

:GOSUB 2000

1135

 

1140

'Set operation status mask to detect mode change from CV to CC

 

1145

CODES$ = "STAT:OPER:ENAB 1024;PTR 1024"

:GOSUB 2000

1150

 

1155

'Enable Status Byte OPER summary bit

 

1160

CODES$ = "*SRE 128"

:GOSUB 2000

1165

 

1170

'Arm trigger circuit and send trigger to power supply

 

1175

CODES$ = "INITIATE;TRIGGER"

:GOSUB 2000

1180

 

1185

'Wait for supply to respond to trigger

 

1190

FOR I= 1 to 100 :NEXT I

 

1195

 

1200

'Poll for interrupt caused by change to CC mode and print to screen

 

1205

CALL IOSPOLL (PS,RESPONSE)

 

1210

IF (RESPONSE AND 128)< >128 THEN GOTO 1240

'No OPER event to report

1215

CODES$ = "STATUS:OPER:EVEN?"

:GOSUB 2000 'Query status oper register

Remote Programming 21

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Agilent Technologies 664xA, 665xA, 667xA, 669xA, 668xA manual Programming Some Power Supply Functions, Iout = OUTPUTS2

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