Agilent Technologies 4349B, Manual

Page: 91 / 233

4349B
Returning to Local Mode
When you press a key on the 4349B 's keyboard while operating in remote , the 4349B does not
respond. This is because in remote (as indicated by the display's Rmt annunciator) the 4349B
ignores all front panel inputs except the key . T o return the 4349B to the Local mode ,
press the .
Query Commands
There are several commands in the alphabetic command directory that end with a question
mark. These commands are called query commands because each returns a response to a
particular question.
In addition to the queries described above , you can create others by appending a question mark
to most commands .
Getting Data from the 4349B
The 4349B can output readings and responses to query commands . As an example , have the
4349B generate a response to a query command by sending:
OUTPUT 717;"*IDN?"
When you send a query from remote , the 4349B does not display the response as it did when
you executed the command from its front panel. Instead, the 4349B sends the response to
its output buer . The output buer is a register that holds a query response or data for a
single measurement until it is read by the computer or replaced by new information. Use
the computer's input statement to get the response from the output buer . F or example , the
following program reads the response (4349B ) and prints it.
10 ENTER 717;A$
20 PRINT A$
30 END
Remote Operation 4-3