68 Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter
Reading Out Measured Result
Reading Out Measured Result
6-
Sample program
See Example 9-10 and Example 9-11 to view an example of reading out
measured result in ASCII and Binary format respectively using :READ?
command.
Trigger input timing when using :READ? command
You must input a trigger after execution of the :READ? command. Therefore, if
you use different controllers for outputting the trigger and executing the
:READ? command, you need to find out whether the :READ? command has
been executed from the controller for outputting the trigger in order to prepare
the proper timing for trigger output (to trigger the instrument after execution
of the :READ? command).
You can obtain this information from the /READY_FOR_TRIG signal of the
handler interface as shown in Figure 6-8.
Figure 6-8 Behavior of /READY_FOR_TRIG signal at execution of :READ? command
If the :READ? command is executed when the trigger system is in the idle
state, the /READY_FOR_TRIG signal of the handler interface changes from
HIGH to LOW after completion of the internal processing following the
reception of the command as shown in Figure 6-8.
If the trigger system continuous startup is ON, the /READY_FOR_TRIG signal
changes from HIGH to LOW (the trigger system transitions to the trigger wait
state instead of the idle state) after the completion of measurement and
display update as shown in Figure 6-8. As a result, it is not possible to
determine whether the :READ? command has actually been executed.
Therefore, you need to turn OFF the trigger system continuous startup (execute
the :INITiate:CONTinuous command on page 227 specifying OFF) in
advance.
To Next Page
Loading...
