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14 rf400, Rf400 -35 – Campbell Scientific LoggerNet Datalogger Support Software User Manual

Page 91

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Section 4. Setting up Datalogger Networks

If you are using LoggerNet Admin or LoggerNet Remote 4.0 and

using the Connect Screen to connect to a remote server that is

running an older version of LoggerNet, the behavior will be

different than described above. When connecting to a LoggerNet

3.4.1 server, you will be disconnected with no advanced warning

when Max Time On-Line is reached. A message will be displayed

indicating that Max Time On-Line has been reached. When

connecting to servers older than LoggerNet 3.4.1, the behavior

will be variable. Generally, you will be disconnected at some

point, but the timing of the disconnect will not be predictable.

Maximum Baud Rate – Select the arrow to the right of this field to choose a

maximum baud rate for communication with this device. Note that the actual

rate of communication may be limited by the capability of other devices in the

communications chain.

Advanced
Extra Response Time – In this field, specify the additional time that

LoggerNet should delay before terminating the communications link if there is

no response from the MD9. Additional time may be needed in instances where

the communications link is noisy or network traffic is heavy.

Maximum Packet Size – Data is transferred in “chunks” called packets. For

most devices the default value is 2048 byes. The value entered in this field can

be changed in 32 byte increments. If a communications link is marginal,

reducing the packet size may improve reliability.

4.2.4.14 RF400

If the RF400 is being used in a point-to-point network (one base radio to one

remote radio) or in a PakBus network, where all of the settings in the radios are

identical, then the communications link can be depicted on the device map as a

direct connection (COM Port with datalogger or PakBus routing device

attached — no RF400s shown in the device map). However, in a point-to-

multipoint network where all remote radios have a separate address, the

RF400s are depicted on the device map. Refer to the RF400 Users Manual for

complete information on RF400 radio setup.

The RF400 has only Hardware and Notes tabs.

Standard
Communication Enabled – Before communication can take place, all devices

in the chain must be enabled. When this box is selected, the RF400 radio is

enabled for communication.

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.

NOTE

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