Programming Some Power Supply Functions
SAMPLE FOR POWER SUPPLY AT
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| Controller Using Agilent 82335A Interface |
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5 | ‘ < |
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1000 | MAX.ELEMENTS=2 : ACTUAL.ELEMENTS=O :MAX.LENGTH=80 :ACT.LENGTH=O | |
1005 | DIM OUTPUTS(2) :CDDES$=SPACE$(40) |
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1010 | ISC=7 :PS=706 |
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1015 | ‘ |
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1020 | 'Set up the Power Supply Interface for DOS driver |
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1025 | CALL IORESET (ISC) | 'Reset the interface |
1030 | IF PCIB.ERR < > NOERR THEN ERROR PCIB.BASERR |
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1035 | TIMEOUT=3 |
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1040 | CALL IOTIMEOUT (ISC, TIMEOUT) | 'Set timeout to 3 seconds |
1045 | IF PCIB.ERR < > NOERR THEN ERROR PCIB.BASERR |
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1050 | CALL IOCLEAR (ISC) | 'Clear the interface |
1055 | IF PCIB.ERR <> NOERR THEN ERROR PCIB.BASERR |
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1060 | CALL IOREMOTE (ISC) | 'Set Power Supply to remote mode |
1065 | IF PCIB.ERR <> NOERR THEN ERROR PCIB.BASERR |
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1070 | ‘ |
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1075 | 'Program power supply to CV mode with following voltage and current |
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1080 | CODES$ = "VOLTAGE 7.8;CURRENT 480" | :GOSUB 2000 |
1085 | ‘ |
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1090 | 'Query power supply outputs & print to screen |
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1095 | CODES$ = "MEASURE:VOLTAGE?;CURRENT?" | :GOSUB 2000 :GOSUB 3000 |
1100 | VOUT = OUTPUTS(I) |
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1105 | IOUT = OUTPUTS(2) |
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1110 | PRINT "The output levels are "VOUT" Volts and "IOUT" Amps" |
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1115 | ‘ |
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1120 | 'Program triggered current level to value insufficient to maintain |
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1125 | 'supply within its CV operating characteristic |
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1130 | CODES$ = "CURR:TRIG 50" | :GOSUB 2000 |
1135 | ‘ |
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1140 | 'Set operation status mask to detect mode change from CV to CC |
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1145 | CODES$ = "STAT:OPER:ENAB 1024;PTR 1024" | :GOSUB 2000 |
1150 | ‘ |
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1155 | 'Enable Status Byte OPER summary bit |
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1160 | CODES$ = "*SRE 128" | :GOSUB 2000 |
1165 | ‘ |
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1170 | 'Arm trigger circuit and send trigger to power supply |
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1175 | CODES$ = "INITIATE;TRIGGER" | :GOSUB 2000 |
1180 | ‘ |
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1185 | 'Wait for supply to respond to trigger |
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1190 | FOR I= 1 to 100 :NEXT I |
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1195 | ‘ |
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1200 | 'Poll for interrupt caused by change to CC mode and print to screen |
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1205 | CALL IOSPOLL (PS,RESPONSE) |
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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
