1269 User Manual
Using The Enhanced Monitoring System 4-30
Programming The Parity
The parity may be programmed using one of the following
commands:
SYSTEM:COMM:SERIAL:PARITY EVEN
SYSTEM:COMM:SERIAL:PARITY ODD
SYSTEM:COMM:SERIAL:PARITY NONE
The present parity may be read using the query:
SYSTEM:COMM:SERIAL:PARITY?
The EMS will reply to this query with one of the following:
EVEN
ODD
NONE
Programming The
Number of Stop Bits
The number of data bits may be programmed with the
command:
SYSTEM:COMM:SERIAL:SBITS <stop bits>
where “<stop bits>” will either be 1 or 2. The presently
programmed number of stop bits may be read with the
query:
SYSTEM:COMM:SERIAL:SBITS?
Illegal RS-232 Interface
Combinations
The following combinations of parity, data bits, and stop bits
are NOT supported
No parity, 7 data bits, 1 stop bit
Even parity, 8 data bits, 2 stop bits
Odd parity, 8 data bits, 2 stop bits
If an attempt is made to program one of these
combinations, the command will be ignored, and an error
will be generated and placed in the instrument’s “error
queue”. The error generated will be error number -221
(“Settings conflict”). Consult the SCPI reference section of
this manual for a complete description of error messages.
As an example, suppose that the system presently has the
following RS-232 configuration:
9600 baud
1 stop bit
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