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ET-2200 Series Ethernet I/O Modules
The keep-alive mechanism is provided to ensure that both the
client and the broker are alive and the connection is still open.
If a Client doesn't send any messages during the Keep Alive period,
it must send a PINGREQ packet to the broker to confirm its
Keep Alive
availability. The broker must reply with a PINGRESP packet to also
Interval
indicate its availability. The broker will disconnect a client, which
doesn't send a PINGREQ packet or any other message within one
and a half times of the Keep Alive Interval. The valid range is 5 to
65000 seconds.
The Topic Name is a combination of the Main Topic Name and the
Sub Topic Name. The Main Topic Name can be empty. The same
Main Topic
part of the Topic Names can be entered in the Main Topic Name
Name
field to improve the processing efficiency of all Topic Names. A
shorter Topic Name also improves processing efficiency.
Update Settings
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