X20 system modules • Bus controllers • X20BC0063
X20 system User's Manual 3.10
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4.5.5.9 Automatic transfer rate detection
After booting or after a communication timeout, the bus controller goes into the status "Baud Search". This means
the bus controller behaves passively on the bus.
The bus controller always begins the search for the configured transfer rate with the highest transfer rate. If a
complete error-free telegram is not received during monitoring time, then the search is continued using the next
lowest transfer rate.
Transfer rate
12 Mbit/s
6 Mbit/s
3 Mbit/s
1.5 Mbit/s
500 kbit/s
187.5 kbit/s
93.75 kbit/s
45.45 kbit/s
19.2 kbit/s
9.6 kbit/s
Table 134: Transfer rates supported by the bus controller
4.5.5.10 Additional documentation and import files (EDS)
Additional documentation about bus controller functions as well as the necessary import files for the master engi-
neering tool are available in the Downloads section of the B&R website (
).
Summary of Contents for X20 System
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