Agilent Technologies 4288A, Руководство по программированию

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Chapter 6 77
Reading Out Measured Result
Reading Out Measured Result
6. R
ead
ing
out
Mea
s
u
re
d
Res
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Sample program
Example 6-7 shows a sample program to read out the measured result using the data buffer.
This program is stored on the sample program disk under the filename “data_buf.bas.”
This program executes measurement 50 times, reads out the results of the 50 measurements
in batch using data buffer 3, and then displays this information.
The program is detailed below.
Lines 40 to 50 Sets the GPIB address.
Line 70 Assigns the number of measurements to be fed into the data buffer (50
times) to the Point variable.
Line 90 Sets the data transfer format to the binary format.
Lines 110 to 120 Turns ON the trigger system continuous startup and sets the trigger
mode to the GPIB trigger.
Lines 140 to 150 Reads out the ON/OFF state of the comparator function and assigns it
to the Comp_flag variable.
Line 170 If the Comp_flag value is 1 (the comparator function is ON), redefines
the size of the array data so that the number of data items for each
measurement is 4.
Line 190 If the Comp_flag value is not 1 (the comparator function is OFF),
redefines the size of the array data so that the number of data items for
each measurement is 3.
Lines 220 to 230 Sets the number of measurements to be fed into the data buffer to
‘Point’ and makes the setup feed the measured result into the data
buffer.
Lines 270 to 310 Repeats the measurement until data buffer 3 becomes full.
Lines 350 to 410 Reads out data buffer 3.
Lines 470 to 530 If the Comp_flag value is 1 (the comparator function is ON), displays
the measurement status, measured primary parameter value, measured
secondary parameter value, and comparator sorting result.
Lines 550 to 610 If the Comp_flag value is not 1 (the comparator function is OFF),
displays the measurement status, measured primary parameter value,
and measured secondary parameter value.
Example 6-7 Reading out measured result using data buffer (data_buf.bas)
10 DIM Buff$[9],Digit$[1],Read_form$[9],Num_of_byte$[9],Img$[50]
20 REAL Data(1:1000,1:4)
30 INTEGER Point,Comp_flag,Cond_reg
40 ASSIGN @Binary TO 717;FORMAT OFF
50 ASSIGN @Agt4288a TO 717
60 !
70 Point=50
80 !
90 OUTPUT @Agt4288a;":FORM REAL"
100 !
110 OUTPUT @Agt4288a;":INIT:CONT ON"
120 OUTPUT @Agt4288a;":TRIG:SOUR BUS"
130 !
140 OUTPUT @Agt4288a;":CALC:COMP?"