Campbell LoggerNet, Инструкция по эксплуатации

Страница: 100 / 580

Section 4. Setting up Datalogger Networks
initiate a hello exchange with the datalogger. A verify interval of zero causes
LoggerNet to use a default verify interval of 2.5 times the beacon interval. If
the beacon interval is also zero, the default verify interval is 5 minutes.
The format for this field is 00 h(ours) 00 m(inutes) 00 s(econds).
Advanced
Extra Response Time – The amount of additional time, in seconds, that
LoggerNet should wait for this device to respond. Note that Extra Response
Time is cumulative for all devices in the network.
PakBus Address – This field is for display only. It shows the PakBus address
that has been set up for the PakBus Port. This address can be changed by going
to the Setup Screen’s Options | LoggerNet PakBus Settings menu item.
4.2.4.20 PakBusTcpServer
The PakBus TcpServer can accommodate multiple incoming PakBus/TCP
connections to service the stations attached to it. Therefore, the same IP port
can be used to listen for incoming connections from multiple dataloggers.
The Outbound PakBus Connections portion of the Routing tab can be used to
specify IP addresses and port numbers to be used for outgoing connections to
specific dataloggers attached to the PakBus TcpServer. The Maintained Nodes
portion of the Routing tab can be used to cause LoggerNet to maintain a
connection with a range of these dataloggers, once an incoming connection has
been established.
Hardware Tab, Standard
Communications Enabled – This check box is used to turn communication on
or off. This check box must be enabled for any communication to take place
over the PakBus TcpServer.
PakBus Port Always Open – By default, a port is only active when
communication is taking place with a device. Selecting this option will keep
the port always open for each datalogger attached to the PakBus TcpServer.
Maximum Time On-Line – This field is used to define a time limit for
maintaining a connection to the device. (This may be useful in avoiding costly
communication costs, in the event that a connection to a station is inadvertently
maintained for a long period of time.) Maximum Time On-Line applies to both
scheduled connections and manual connections. However, for manual
connections from the Connect Screen, it is always best to manually disconnect
rather than relying on LoggerNet to disconnect for you.
When the device is contacted on a schedule, communication with the device
will be terminated once this time limit is exceeded. A value of 0 in this field
indicates that there is no time limit on maintaining a connection to the device.
When the device is connected in the Connect Screen and the time limit
approaches, a dialog box is displayed warning the user that Max Time On-Line
is about to be exceeded. The dialog box has
Reset Max Time and Don’t Reset
buttons. If the Reset Max Time button is pressed, the Max Time On-Line
4-44