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Campbell Scientific LoggerNet Datalogger Support Software User Manual

Page 89

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Section 4. Setting up Datalogger Networks

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).

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.

Delay Hangup – The amount of time, in seconds and milliseconds, that

LoggerNet should delay before hanging up the link to the device. If a new

command to the device is issued before the delay has expired, communication

will not be terminated.

NOTE

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