Setra System Model Datum 2000 User Manual
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CHANGING THE BAUD RATE AND PARITY
The baud rate and parity of the DATUM 2000™ Serial Option can be set to
the following values:
COMMAND
ASCII
BAUD:
300
3
33H
600
6
36H
1200
1
31H
2400
2
32H
4800
4
34H
9600
9
39H
PARITY:
NONE
N
4EH
ODD
O
4FH
EVEN
E
45H
To change the baud or parity, transmit a P, ASCII 50H, and the command
number or letter from the table above. For example, to set the DATUM
2000™ to 9600 baud and even parity, transmit P (always allow 1 second
between commands sent to DATUM 2000™) and then transmit 9, to set the
baud rate to 9600. Set your computer or terminal to 9600 baud and then
transmit P and E to set even parity.
When you change the communications parameters, they are stored internally
and will be recalled every time the DATUM 2000™ is powered up.
Hint: Transmit a V to the DATUM 2000, if the verify message "SETRA
DATUM 2000", is not received, wait 1 second, and retransmit a V. Transmit
a V each second until the verification message is received. When the
verification message is received, the DATUM 2000™ is ready for a new
command. Now transmit a P, wait at least 1 second and transmit the baud or
parity parameter.