NPort W2150A-W4/W2250A-W4 Series User Manual
78
Force transmit
Default
0 ms
Options
0 to 65535
Description
This field controls data packing by the amount of time that elapses between bits of data.
When using this field, make sure that Inactivity time is disabled or set to a larger value.
Otherwise the connection may be closed before the data in the buffer can be transmitted.
0: If serial data is not received, the NPort will wait indefinitely for additional data.
1 to 65535: If serial data is not received for the specified amount of time, the data that is
currently in the buffer will be packed for network transmission. The optimal force transmit
time depends on your application, but it must be at least larger than one character interval
within the specified baudrate. For example, assume that the serial port is set to 1200 bps,
8 data bits, 1 stop bit, and no parity. In this case, the total number of bits needed to send
a character is 10 bits, and the time required to transfer one character is 8.3 ms, so the
force transmit time to be larger than 8.3 ms.
Settings for Pair Connection Master Mode and Pair Connection Slave
Mode
When
Operation Mode
is set to
Pair Connection Master
or
Pair Connection Slave
on a serial port’s
Operation Modes
page, configure additional settings such as
TCP alive check time
,
Destination
address
and
TCP port.
A Pair Connection application involves one serial port communicating over an IP
network to another serial port as if a serial cable connected the two serial ports. Pair Connection modes can
extend RS-232 transmission to unlimited distances.
An NPort device server is needed at both ends of the connection. The serial port at one end must be set to
Pair Connection Master mode, and the serial port at the other end must be set to Pair Connection Slave
mode. It does not matter which serial port is master and which serial port is slave.
