Campbell Scientific LoggerNet Datalogger Support Software - Manual (Page 552)

Appendix E. Log Files
TABLE E-2. Communication Status Log Messages
Message Text Message Meaning User Response to Message
PakBus framing error LoggerNet received data
from the link that cannot
be verified to be part of a
PakBus packet.
Some possible causes: the
datalogger program or its settings
are configured to write data on the
port on which you are attempting to
connect, there is a mismatch in baud
rates between your computer serial
port and the datalogger, the link is
dropping sequences of characters
from transmission because the CPU
on the computer is heavily loaded or
because of faulty USB drivers.
Possible solutions: change the port
you are using to communicate, try
using a slower baud rate to
communicate with the datalogger,
use Windows Task Manager to
determine whether there are
processes that are loading down
your CPU, check to see if there is an
updated driver for your USB/RS232
adapter.
Invalid low level signature The packet received
from the device got
corrupted and the packet
signature doesn’t match
the packet contents.
Check to find out where in the
communications link noise or signal
corruption is causing the data to be
disrupted.
Provider opened The serial
communications port has
been initialized.
Device dialed The communications
link has been initialized
to transfer data packets.
Provider closed The serial
communications port has
been closed.
Unable to Locate Serial synch
byte
The low level
communications
synchronization byte was
not received after the
computer sent out a
serial packet.
This indicates that the device is
either not responding or responding
with an invalid communications
protocol. This message would
appear if trying to talk to an array
based datalogger that is set up as a
table based datalogger in the
network map.
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