RDS-3086/3166G User Manual
ORing Industrial Networking Corp
29
Stop Bits
Choose the number of bits used to indicate the end of a byte.
You can configure stop bits to be 1 or 1.5(2). If Stop Bits is 1.5,
the stop bit is transferred for 150% of the normal time used to
transfer one bit. Both the computer and the peripheral device
must be configured to transmit the same number of stop bits.
Parity
Chose the method of detecting errors in transmission. Parity
control bit modes include None, Odd, Even, Mark, and Space.
None
: parity checking is not performed and the parity bit is not
transmitted. None is the most common parity setting with error
detection handled by a communication protocol.
Odd
: the last data bit transmitted will be a logical 1 if the data
transmitted had an odd amount of 0 bits
Even
: the last data bit transmitted will be a logical 1 if the data
transmitted had an even amount of 0 bits.
Mark
: the parity bit is always set to the mark signal condition
(logical 1)
Space
: the last transmitted data bit will always be a logical 0
Flow Control
Serial communication consists of hardware flow control and
software flow control, so called as the control is handled by
software or hardware. XOFF and OXN is software flow control
while RTS/CTS or DTR/DSR is hardware flow control.
Choose
XOFF
to tell the computer to stop sending data; then
the receiving side will send an XOFF character over its Tx line to
tell the transmitting side to stop transmitting. Choose
XON
to tell
the computer to begin sending data again; then the receiving
side will send an XON character over its Tx line to tell the
transmitting side to resume transmitting. In hardware flow
control mode, when the device is ready to receive data, it sends
a CTS (Clear To Send) signal to the device on the other end.
When a device has something it wants to send, it will send a
RTS (Ready To Send) signal and waits for a CTS signal to come
back its way. These signals are sent apart from the data itself on
separate wires.
Force TX Interval Time
This setting will specify the timeout when no data has been
transmitted. When the timeout is reached or TX buffer is full (4K
Bytes), the queued data will be sent.
0
means disable. Factory
default value is
0
.
