HEIDENHAIN MANUALPLUS 620 - Page 1774

1774 HEIDENHAIN Technical Manual MANUALplus 620
Defining the LSV2
baud rate
MP_baudRateLsv2
Data transfer rate for LSV2 communication in baud
Available from NCK software version: 597 110-01.
Format: Selection menu
Selection: Use a selection menu to define the transfer rate for the LSV2
communication. Minimum value is 110 baud, maximum value
115200 baud.
Default: BAUD_57600
Access: LEVEL2
Reaction: NOTHING
Creating parameter
sets, configuring
interface ports
Use the CfgSerialInterface configuration object to manage the individual
parameter sets for the serial interface. Each parameter set is identified by a
key name, and contains the properties of the respective connection. In
theCfgSerialPorts machine parameter you define which of the parameter
sets is activesee "Specifying and selecting interface parameters" on page
1772. The interface settings to be defined are described below.
Data transfer rate:
Baud rate
The data transfer rate is given in baud (bits per second).
Common transfer rates are:
110, 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600,
115200 baud
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:
t
B
1
transfer rate (bit/s)
----------------------------------------------------------=
t
B
1
19200 (Bit/s)
---------------------------------------- 52 . 083 µ s ==
characters transmitted per second
transfer rate (bit/s)
number of bit per characters
--------------------------------------------------------------------------------------------=