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5-12
Chapter 5, FRONT PANEL OPERATION
5.2.07 RS232 Setup 2 Menu
Figure 5-8, RS232 Setup 2 Menu
This menu, shown in figure 5-8, has three controls affecting the RS232 computer
interface, as follows:-
Prompt
This function can be switched ON or OFF:-
ON
The prompt character is sent out by the lock-in amplifier after each command
response to indicate that the response is finished and the instrument is ready for a
new command. It can also be used to signal overload conditions (see section
6.3.13 for further information).
OFF
No prompt character is sent.
Echo
This function can be switched ON or OFF (see section 6.3.08 for further
information):-
ON
The lock-in amplifier echoes each character received over the RS232 interface
back to the controlling computer, to indicate it is ready to receive the next one. In
order for this to work, the controlling computer should ensure that it does not
send the next character until it has read the echo.
OFF
No character echo occurs.
Delimiter
Some instrument control commands generate more than one output value, such as the