Fluke 5790A, Руководство оператора

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Remote Operation
Remote Program Examples
5
5-25
5-52. Efficiently Taking N Successive Readings
Because MEAS? always restarts the measurement cycle, it is more time efficient to use
*WAI;VAL? for taking successive measurements. The following program asks the user
for the number of measurements to average, then takes that number of measurements
using *WAI;VAL?.
10 REM Set Bus Timeout to 20 seconds, Init IEEE Bus
20 TIMEOUT 20 * 1000
30 INIT PORT 0
40 CLEAR @6
100 REM Reset 5790A, INPUT1, INTERNAL Trigger, Full Resolution Responses
110 PRINT @6,"*RST; INPUT INPUT1; EXTRIG OFF; HIRES ON"
120 VS = 0.0
200 PRINT "Enter The Number of Measurements to Average ";
210 INPUT N
219 REM Restart Measurements with TRIG
220 PRINT @6, "TRIG"
230 FOR I=0 TO N
240 PRINT @6,"*WAI;VAL?"
250 INPUT @6,V,F,S
260 IF S <> 0 THEN I = I - 1 \ GOTO 300
270 PRINT V,F
280 VS = VS + V
290 NEXT I
300 PRINT "Average of ";N;" Readings = ";VS/N
5-53. Locking the 5790A Range
The 5790A Autoranging algorithm cannot not always choose the best range with which
to measure a particular value. In order to use the best range for a given value it is
necessary to use 5790A RANGE command. Given the approximate value to be measured,
the RANGE command selects, sets, and locks the best range in which to measure that
value.
10 REM Set bus timeout to 20 seconds, init IEEE bus
20 TIMEOUT 20 * 1000
30 INIT PORT 0
40 CLEAR @4,@6 ! 5790A address = 6, 5700A address = 4
100 REM Set 5700A TO 2V,10 kHz, internal transfers OFF
120 PRINT @4, "*RST; OUT 2V,10KHZ;XFER OFF;OPER"
130 REM Set the 5790A to the best range for measuring 2V magnitudes
140 PRINT @6, "RANGE 2V"
150 REM Wait for 5700A output to settle
160 PRINT @4, "*OPC?"
170 INPUT @4,S
200 REM Take Measurement(s)
(see the measurement taking methods under previous heading)
5-54. Calibrating the 5790A Remotely
You can calibrate the 5790A remotely instead of using the front panel controls.
Calibration is described in detail in Section 3 of the 5790A Service Manual. The
procedure involves making connections to the 5790A binding posts during the process,
and you need to change the position of the rear panel CALIBRATION switch. The
following sample program shows some techniques you can use to control 5790A
calibration using the remote interface. To make this program complete, you will need to