WEG CFW100 User Manual page 16

received character represents the beginning of a new telegram. And in the same manner, the network elements
will assume that the telegram has reached its end when after receiving the telegram elements, this time has
elapsed again.
If during the transmission of a telegram the time between the bytes is longer than this minimum time, the
telegram will be considered invalid because the frequency inverter will discard the bytes already received and
will mount a new telegram with the bytes that were being transmitted.
For communication rates higher than 19200 bits/s, the used times are the same as for that rate. The next table
shows us the times for different communication transmission rates:
Table 4.1: Communication rates and the time periods involved in the telegram transmission
T = Time for transmitting one byte of the telegram.

11 bits
T = Time between bytes.

between bytes
T = Minimum interval to indicated beginning and end of a telegram (3.5 x T11bits).

3,5x
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Baud rate T11 bits
1200 bits/s 9.167 ms
2400 bits/s 4.583 ms
4800 bits/s 2.292 ms
9600 bits/s 1.146 ms
19200 bits/s 573 µs
38400 bits/s 573 µs
57600 bits/s 573 µs
Modbus RTU Protocol
T3,5x
32.083 ms
16.042 ms
8.021 ms
4.010 ms
2.005 ms
2.005 ms
2.005 ms