NPort 5000 Series User Manual
77
Web Interface for the Overall NPort 5000 Series
Parameter
Setting
Factory
Default
Description
Necessity
TCP Alive
Check Time
0 to 99 min
7 min
0 min:
TCP connection is not closed due to an
idle TCP connection.
1 to 99 min:
The NPort automatically closes the
TCP connection if there is no TCP activity for the
given time. After the connection is closed, the
NPort starts listening for another Real COM
driver connection.
Optional
Max
Connection
1 to 8
(1 to 4 for the
NPort 5100/
NPort 5200/
NPort 5400
Series only)
1
Max connection
is set to 2 to 8 when the user
needs to receive data from different hosts
simultaneously. The factory default only allows
1 connection at a same. When Max Connection
is set to 1, the Real COM driver on the specific
host has full control.
Max. Connection 1:
Allows only 1 host’s Real
COM driver to open the specific NPort serial
port.
Max Connection 2 to 8:
Allows 2 to 8 host’s
Real COM drivers to open the specific NPort
serial port, at the same time. When multiple
hosts’ Real COM drivers open the serial port at
the same time, the COM driver only provides a
pure data tunnel without control ability. That is,
this serial port parameter will use the firmware’s
settings, not the settings of your application
program (AP).
Application software that is based on the COM
driver will receive a driver response of “success”
when the software uses any of the Win32 API
functions. The firmware will only send the data
back to the driver on the host. Data will be sent
first-in-first-out when data comes into the NPort
from the Ethernet interface.
Required