6 Application Programs
240 Keysight 34420A User’s Guide
HP BASIC/GPIB Program Example 3
This program example demonstrates the use of an SRQ to indicate when
measurements are complete. The meter is set to use external triggering. Math
scaling is also demonstrated.
10 !
20 ! This program configures the meter to make multiple dc voltage measurements
30 ! using an external trigger. The "Operation Complete" bit in the Standard
40 ! Event Register is used to determine when the trigger is received and
50 ! generates an SRQ. This program also shows the use of math scaling.
60 !
70 INTEGER Value,Task ! Dimension variables
80 CLEAR 7 ! Clear interface - send "device clear"
90 ASSIGN @Meter TO 722 ! Assign I/O path to address 722
100 COM @Meter ! Use same address in subprogram
110 OUTPUT @Meter;"*RST" ! Reset the meter
120 OUTPUT @Meter;"*CLS" ! Clear status registers
130 OUTPUT @Meter;"*OPC?" ! Send "1" to output buffer when reset complete
140 ENTER @Meter;Value ! Enter value
150 !
160 ! Configure the Status Register system to generate an SRQ when the
170 ! "Operation Complete" bit is set in the Standard Event Register
180 !
190 OUTPUT @Meter;"*SRE 32" ! Enable "Standard Event" bit in Status Byte
200 ! to pull the IEEE-488 SRQ line
210 OUTPUT @Meter;"*ESE 1" ! Enable "Operation Complete" to set
220 ! "Standard Event" bit in Status Byte
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