NPort 5400 Series User’s Manual | Web Console Configuration | |||
| TCP alive check time |
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| Setting | Factory Default | Necessity |
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| 0 to 99 min | 7 min | Optional |
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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.
Inactivity time
Setting | Factory Default | Necessity |
0 to 65535 ms | 0 ms | Optional |
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0 ms: TCP connection is not closed due to an idle serial line.
This parameter defines the maintenances status as Closed or Listen on the TCP connection. The connection is closed if there is no incoming or outgoing data through the serial port during the specific Inactivity time.
If the value of inactivity time is set to 0, the current TCP connection is maintained until there’s connection close request. Although the inactivity time is disabled, the NPort will check the connection status between the NPort and remote host by sending “keep alive” packets periodically. If the remote host does not respond to the packets, it treats the connection as being down unintentionally. The NPort will then force the existing TCP connection to close.
ATTENTION
The Inactivity time should at least be set larger than that of 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 is completed.
ATTENTION
Inactivity time is ONLY active when “TCP connect on” is set to “Any character.”
Ignore jammed IP
Setting | Factory Default | Necessity |
No or Yes | No | Optional |
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Previously, when Max connections > 1, and the serial device is transmitting data, if any one of the connected hosts is not responding, it will wait until the data has been transmitted successfully before transmitting the second group of data to all hosts. Currently, 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.
Packing length
Setting | Factory Default | Necessity |
0 to 1024 | 0 | Optional |
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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
