13 md9 remote, Md9 remote -34 – Campbell Scientific LoggerNet Datalogger Support Software User Manual

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Section 4. Setting up Datalogger Networks

4.2.4.13 MD9 Remote

The MD9 remote is the MD9 modem device that is connected to the datalogger

at the field site. It has Hardware and Notes tabs only.

A PakBus datalogger is added to an MD9 network by attaching a

PakBusPortHD to an MD9 Remote. The PakBus datalogger is

then attached to the PakBusPortHD. Note that this communication

link may be slow. It may take several minutes for the link to be

dropped, once communication is complete. Therefore, you will

not be able to make fast transitions between communication links.

Also, the Status Monitor will reflect this communication link as

marginal.

Standard
Communications Enabled – Before communications can take place, all

devices in the chain must have the Communications Enabled box checked.

When this box is selected, communications to the MD9 modem are enabled.

Address – The hardware for each MD9 modem is configured for a certain

address using internal hardware switches. This address acts as an identification

for the device in an MD9 network. Each MD9 modem in the network must

have a unique address; this number is entered in the Address field.

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

counter will be reset. If the

Don’t Reset button is pressed or if no button is

pressed, the connection will be terminated when Max Time On-Line is

reached.

The format for this field is 00 h(ours) 00 m(inutes) 00 s(econds).

NOTE

4-34

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