ICP DAS USA TDRS4050601 - Manual (Page 53)

Industrial Redundant Ring Switch – RS Series User Manual
TDRS4050601 r
com2 [baudrate][databit][parity][stopbit]
Description
The second serial port Com2 is assigned for RS485. This command enables you to
set up the transmission speed(baudrate),data bit(databit), parity check type (parity)
and stop bit(stopbit).
The transmission speed parameter [baudrate] allows the following settings: 300, 600,
1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115200. The port speed and
device speed must match.
The number of data bits can be 7 (for true ASCII) or 8 (for any kind of data, as this
matches the size of a byte),
The parity check code can be set to none (0), even (1), or odd (2). None(0) means
that no parity bit is sent at all. Even (1) means applying even parity check, each set
of transmitted bits must have an even number of set bits. Odd (2) means applying
odd parity check, each set of transmitted bits must have an odd number of set bits.
Stop bit is used in asynchronous communications to indicate the end of a piece of
data.
Parameters
Parameter Description
baudrate Provides the baud rate (300 or 600 or 1200 or 2400
or 4800 or 9600 or 19200 or 38400 or 57600 or
115200)for your usage, default value is 115200
databit Provides the data bit value(7 or 8), default value is 8
parity Provides the parity check type, none k(0) , even (1),
odd (2):, default value is 0.
stopbit Provides the stop bit(1 or 2), default value is 1.
Example: