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5-8 Field Control™ Genius® Bus Interface Unit User’s Manual
–
October 1999 GFK-0825F
5
Select the Baud Rate
Genius bus communications can occur at any of four baud rates: 153.6 Kbaud standard, 153.6
Kbaud extended, 76.8 Kbaud, or 38.4 Kbaud. The default is 153.6 K baud standard. The
Genius
I/O System User's Manual
gives guidelines for baud rate selection.
Each device's communications baud rate must be the same as that used by all other devices on the
bus,
or the bus will not operate.
Baud Rate?
153.5k std
< > tgl entr
1. If you want to go to the next screen without changing the baud rate, press F2 ( > ).
If the baud rate should be changed, press F3 (toggle) to display the other baud rate choices.
The asterisk means a choice now being displayed has been changed by pressing the F3 (tgl)
key.
F3 (tgl) may be
pressed to see
other choices for
this item.
Baud Rate?
76.8k *
< > tgl entr
2. When the desired baud rate appears, press F4 (enter). On this screen (only) the asterisk will
remain until you power-cycle the Bus Interface Unit to implement the new baud rate.
Note
If the baud rate is changed on any block that is currently installed on an operating
bus, it must be changed on all devices on that bus. After changing the baud rate,
you must cycle power at the same time to all devices on the bus to use the new
baud rate.