Dfi Programming Example - Agilent Technologies 66111A User Manual

When this program runs, it returns the DC, RMS, MIN, MAX, HIGH, and LOW data in 10 measurement
data points in the following format:
Output Voltage = 1.999860;
Arm acquisition system...
Pre-trigger delay...
Trigger acquisition...
Dynamic voltage measurements:
dc = 5.002660 V
rms = 5.002660 V
max = 5.080140 V
min = 1.996970 V
high= 5.002310 V
low = 3.538550 V
Array Data[0] = 2.000360 V
Array Data[1] = 1.999680 V
Array Data[2] = 1.998320 V
Array Data[3] = 1.996970 V
Array Data[4] = 3.214240 V
Array Data[5] = 4.064840 V
Array Data[6] = 4.538600 V
Array Data[7] = 4.923570 V
Array Data[8] = 4.941870 V
Array Data[9] = 5.025240 V
Output Voltage = 5.002450 V
PROGRAM COMPLETED
Press Enter key to continue...

DFI Programming Example

The following program illustrates how to program the DFI port so that it goes low when an OCP
condition turns off the output of the unit. To clear an overcurrent condition, the cause of the condition
must first be removed and then an OUTput:PROTection:CLEar command must be sent. Note that the
status event register will not clear the DFI port until the register is read.
Example 5. DFI Example Using BASIC
10 !Rev A.00.00
20 ASSIGN @Ps TO 705
30 OUTPUT @Ps;"*RST"
40 OUTPUT @Ps;"OUTP ON"
50 OUTPUT @Ps;"VOLT 10;CURR .1"
60 !
70 OUTPUT @Ld;"CURR:PROT:STAT ON"
80 OUTPUT @Ld;"OUTP:DFI:STAT ON"
90 OUTPUT @Ld;"OUTP:DFI:SOUR QUES" ! Select DFI bit from Questionable status
register
100 OUTPUT @Ld;"STAT:QUES:ENAB 2;PTR 2"! Unmask bit 2 (OCP) on positive
transition
110 !
120 OUTPUT @Ld;"OUTP:PROT:CLE"
130 OUTPUT @Ld;"STAT:QUES:EVENT?"
140 OUTPUT @Ld;EVENT
190 !
Output Current = -0.000043
! Sets supply to default values
! Turn on power supply output
! Program power supply voltage and current
! Turn on overcurrent protection
! Turn on DFI port
! Clears the protection circuit
! Clears the Event register and DFI
! Reads the event and clears the buffer
Example Programs - D
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