User's Manual

NPort W2150A/W2250A Series Web Console: Serial Port Settings
8-11
Ignore jammed IP
Default Disable
Options Disable, Enable
Description This field specifies how an unresponsive IP address is handled when there are
simultaneous connections to the serial port.
Disable: All transmission will be suspended if one IP address becomes unresponsive.
Transmission will only resume when all hosts have responded.
Enable: Data transmission to the other hosts will not be suspended if one IP address
becomes unresponsive.
Allow driver control
Default Disable
Options Disable, Enable
Description This field specifies how the port will proceed if driver control commands are received from
multiple hosts that are connected to the port.
Disable: Driver control commands will be ignored.
Enable: Control commands will be accepted, with the most recent command received
taking precedence.
TCP port
Default 4001
Options 0 to 9999
Description This field specifies the TCP port number that the serial port will use to listen to
connections, and that other devices must use to contact the serial port.
Cmd port
Default 996
Options
Description This field specifies the TCP port number for listening to SSDK commands from the host.
The usage of other functions can be found in the subsection of Real COM mode in page 7-4.
Connection goes down
Default always high
Options always low, always high
Description This field specifies what happens to the RTS and DTR signals when the Ethernet
connection goes down. For some applications, serial devices need to know the Ethernet
link status through RTS or DTR signals sent through the serial port.
Always low: The selected signal will change to low when the Ethernet connection goes
down.
Always high The selected signal will remain high when the Ethernet connection goes down.
Packet length
Default 0
Options 0 to 1024
Description This field specifies the maximum amount of data that is allowed to accumulate in the serial
port buffer before sending.
0: Packet length is disregarded and data in the buffer will be sent as specified by the
delimiter settings or when the buffer is full.
1 to 1024: Data in the buffer will be sent as soon it reaches the specified length.