Stanford Research Systems SR830, Руководство пользователя

Страница: 77 / 177

4-24
Front Panel
Interface
[Setup]
Pressing the [Setup] key cycles through GPIB/RS232, ADDRESS,
BAUD, PARITY and QUEUE. In each case, the appropriate parameter is
displayed in the Reference display and the knob is used for adjustment.
Press [Phase], [Freq], [Ampl], [Harm#] or [Aux Out] to return the display
to normal and leave Setup.
GPIB/RS232 The SR830 only outputs data to one interface at a time. Commands may
be received over both interfaces but responses are directed only to the
selected interface. Make sure that the selected interface is set correctly
before attempting to program the SR830 from a computer. The first com-
mand sent by any program should be to set the output to the correct
interface.
Setup GPIB/RS232 displays the output interface. Use the knob to select
GPIB or RS232.
ADDRESS Setup ADDRESS displays the GPIB address. Use the knob to select an
address from 0 to 30.
BAUD Setup BAUD displays the RS232 baud rate. Use the knob to adjust the
baud rate from 300 to 19200 baud.
PARITY Setup PARITY displays the RS232 parity. Use the knob to select Even,
Odd or None.
QUEUE The last 256 characters received by the SR830 may be displayed to help
find programming errors. Setup QUEUE will display 6 characters (2 per
display) in hexadecimal (see below). Turn the knob left to move farther
back in the buffer, turn the knob right to move towards the most recently
received characters. A '.' is displayed to indicate the ends of the buffer.
All characters are changed to upper case, spaces are removed, and
command delimiters are changed to linefeeds (0A).
To leave this display, press [Setup] to return to GPIB/RS232 before
pressing [Phase], [Freq], [Ampl], [Harm#] or [Aux Out] to return the dis-
play to normal and leave Setup.