HEIDENHAIN iTNC 530 HSCI - Data Transfer Rate

July 2013 10.1 Introduction 1861
Data transfer rate The data transfer rate is given in bits per second.
Common transfer rates are:
110, 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600,
115200 bps
The time taken to transmit one bit (t
B
) can be calculated from the transfer rate:
For example, a transfer rate of 19 200 bps will have a bit duration of
t
B
= 52.083 µs.
The number of characters transmitted per second can be calculated from the
transfer rate and the transmission format:
Example:
With a transmission format of one start bit, 7 data bits, two stop bits and a data
transfer rate of 300 bps, exactly 30 characters per second will be transmitted.
t
B
1
transfer rate (bit/s)
----------------------------------------------------------=
t
B
1
19200 (Bit/s)
---------------------------------------- 52.08 3 µ s ==
characters per second
transfer rate (bit/s)
numbers of bit per characters
----------------------------------------------------------------------------------------------=
characters per second
300 (Bit/s)
1 + 7 + 2
-------------------------------- 3 0==