NPort 5200 Series User’s Manual
Web Console Configuration
5-15
status between the NPort 5200 and remote host by sending “keep alive” packets periodically. If the
remote host does not respond to the packet, NPort 5200 assumes that the connection was closed
down unintentionally. NPort 5200 will then force the existing TCP connection to close.
ATTENTION
The Inactivity time should at least be larger than Force transmit timeout. To prevent the
unintended loss of data due to the session being disconnected, it is highly recommended that this
value is set large enough so that the intended data transfer can be completed.
Max connection
Setting
Factory Default
Necessity
1, 2, 3, 4
1
Required
Max connection
is usually used when the user needs to receive data from different hosts
simultaneously. The factory default only allows 1 connection at a time.
Max. Connection 1:
NPort 5200 only allows 1 host to open the TCP connection to the specific serial port.
Max Connection 2 to 4:
Allows 2 to 4 host’s TCP connection request to open this NPort 5200 serial port, at the same time.
When multiple hosts establish a TCP connection to the specific serial port at the same time, NPort
5200 will duplicate the serial data and transmit to all of the hosts. Ethernet data is sent on a
first-in-first-out basis to the serial port when data comes into NPort 5200 from the Ethernet
interface.
Ignore jammed IP
Setting
Factory Default
Necessity
No or Yes
No
Required
For previous versions of NPort 5200, when Max connections > 1, and the serial device is
transmitting data, if any one of the connected hosts was not responding NPort 5200 would wait
until the data had been transmitted successfully before transmitting the second group of data to all
hosts. For the current version of NPort 5200, if you select Yes for “Ignore jammed IP,” the host
that is not responding will be ignored, but the data will still be transmitted to the other hosts.
Allow driver control
Setting
Factory Default
Necessity
No or Yes
No
Required
If “max connection” is greater than 1, NPort will ignore driver control commands from all
connected hosts. However, if you set “Allow driver control” to YES, control commands will be
accepted. Note that since NPort 5200 may get configuration changes from multiple hosts, the most
recent command received will take precedence.
Packing length
Setting
Factory Default
Necessity
0 to 1024
0
Optional
Default = 0, The Delimiter Process will be followed, regardless of the length of the data packet. If
the data length (in bytes) matches the configured value, the data will be forced out. The data length
can be configured for 0 to 1024 bytes. Set to 0 if you do not need to limit the length.
