Campbell Scientific PC400 Datalogger Support Software - Manual (Page 250)

Appendix C. Log Files and the LogTool Application
TABLE C-2. Communications Status Log Messages
Message Text Message Meaning User Response to Message
Serial packet X exchanged The low level serial
BMP1 communication
framing packet was sent
and the response
received from the device.
(CR10X-TD table based
type devices)
Classic;;Cmd The listed command was
sent to an array based
datalogger. For a list of the commands and their
meanings see the datalogger
operator’s manual.
BMP1 packet received A BMP1 packet was
received from the device.
(CR10X-TD type
devices only)
RPC packet exchanged A BMP3 packet was
exchanged. (CR5000,
CR9000 dataloggers
only)
Datalogger did not respond to
end command The computer tried to
terminate the connection
but the datalogger did
not acknowledge the
shutdown. This is an indication that there is a
communications problem between
the computer and the datalogger.
Check the cables and connectors
and make sure the datalogger has
power.
PakBus framing error PC400 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.
C-16