Campbell RF410 Manual de Instruções descarregar pdf (Página 71)

PakBus Networking Guide

7.7 CR200 Series

7.7.1 Beaconing, Neighbor List and Comms Verification Interval

In this section the term “CR205” includes the CR215, both having internal

radios, and the CR200 in some networks. The CR205’s neighbor ‘list’ will

accept only one device. If a CR205 has no device in its neighbor list it will

respond to a beacon after a random 0 to 1 second delay by sending a hello-

request message to the beaconer. The beaconing device (if unaware of the

CR205) answers by sending a hello message addressed to it. The CR205 sends

back a hello message response indicating the same communications verification

interval as the beaconer and adopts the communications verification interval as

its own.

After a CR205 responds to a beacon and the hello-exchange is complete, the

beaconing device tells the CR205 to send its neighbor list. The CR205

complies and they are established as neighbors.

If 2.5 × the communications verification interval passes without hearing from

its neighbor, the CR205 resets its neighbor list and becomes open to acquiring a

neighbor once more.

A CR205 always responds to a directed packet, even though the packet may not

come from a neighbor.

7.7.2 Routing

A CR200 Series datalogger cannot be a router. In a PakBus network a CR200

Series is always a ‘leaf node.’

8. Troubleshooting

8.1 LoggerNet can’t communicate with in-range PakBus

datalogger

(PC-RF400~~~RF400-CR510PB~~~ RF400-CR510PB~~~CR205)

Possible reason 1

LoggerNet’s PakBus Address for datalogger doesn’t match datalogger’s

PakBus Address.

Remedy 1

Make them match.

Possible reason 2

An RF400 Series radio is set to a different Hopping Sequence, Network

Address, Radio Address, or Standby Mode.

Remedy 2

Set both radios exactly the same in the above parameters.

(‘base’ radio’s Active Interface is typically Auto Sense, remote radio is

typically CSDC 7)

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Campbell RF410 Manual de Instruções Página 71