NPort W2150A-W4/W2250A-W4 Series User Manual
65
ATTENTION
When Max connection is two or greater, the serial port’s communication settings (i.e., baudrate, parity,
data bits, etc.) will be determined by the NPort. Any host that opens the COM port connection must use
identical serial communication settings.
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 transmissions 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.
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.
