
Section 14. PakBus Networking
14-23
Symptom Possible Causes Cures
In an RF4xx network,
LoggerNet is ‘jumping
over’ the intended
router and connecting
directly to a station
beyond.
LoggerNet device map is
configured ‘flat’ allowing
LN to connect directly to
remote station via a static
route.
Configure the
LoggerNet device as
a ‘tree’ shape where
the remote station is
a child of the router.
In RF4xx network
having 2 or 3 routers,
LoggerNet doesn’t
connect to CR800.
At least one of the routers is
not established as a neighbor
to its adjacent router in the
path.
Configure all router
neighbor filters to
include the next hop
router (both
directions) as an
allowed (potential)
neighbor.
SendGetVariables instruction
not programmed for the
correct PakBus address of
the other CR800.
Correct the PakBus
address.
CR800 not getting
data from other
CR800 using
SendGetVariables
instruction.
SendGetVariables instruction
not programmed for the same
Com port (Active Interface)
as the RF4xx or other
communication peripheral
attached to its CR800.
Make the
instruction’s Com
port match the
attached peripheral’s
setting.
LoggerNet is not
communicating with
nodes beyond an
RF401 series stand-
alone router or routers.
In a beaconing
network, a stand-alone
router doesn’t have
routes to every other
node in the network as
it should.
The network routing
information exceeds the
memory capability of the
RF401 series stand-alone
router or routers.
Create some branch
routers including the
stand-alone router or
routers (see 14.3.7).
14.6 Glossary of PakBus Terms
Active Interface
Selected Com port of an RF4xx or MD485. The
selection could be SDC, CSDC 7, CSDC 8, Modem
Enabled, or RS-232. CSDC 7 is equivalent to SDC 7.
Beacon
A packet broadcast to all nodes. A beacon is intended to
discover neighboring PakBus devices. Devices that
receive a beacon can respond by initiating a hello-
exchange with the beaconing device if not already
neighbors. A device with neighbor filter will ignore
beacons from PakBus addresses not in their potential
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