Campbell RF410 Instrukcja Obsługi Pobierz pdf (Strona 77)

Appendix A. Glossary of PakBus Terms

A-3

Hopping

Sequence

Also called Hop Sequence or Hop Table, this

refers to a particular pattern the spread spectrum

radio uses to ‘hop’ among its assigned frequencies.

In a PakBus network all RF400s must have the

same hopping sequence.

Leaf Node

A PakBus device which cannot serve as a router,

although it can send or receive packets.

Link

A viable communication path between two PakBus

devices.

Link State

Network level: offline, ring, ready, finished, or

pause status.

LogView

Stand-alone software for decoding and viewing

PakBus packets from a low-level log file.

M.E.

Modem Enabled.

Modem Enabled

Datalogger peripherals that are enabled by the CS

I/O modem enabled line (line 5) going high.

Neighbor

From the perspective of a particular PakBus

device, a neighbor is a device with which it has

recently communicated directly (not via router).

Neighbor List

List of neighbor(s) that every PakBus device

maintains. Leaf nodes can only have a single

neighbor. Router nodes can have many neighbors.

Router devices pass their neighbor lists to other

routers in the network to build the network routing

system.

Neighbor Filter

The preferred means of discovery for rf networks.

A group of datalogger settings that controls which

PakBus devices a datalogger may attempt to

establish as neighbors. A neighbor filter initiates

hello exchanges from its potential neighbor list,

ignoring (filtering out) any beacons from non-

potential neighbor sources unless their PakBus

Address is ≥ 4000 (normally LoggerNet). If not

satisfied by normal communications, the neighbor

filter verifies communications with established

neighbors by initiating hello exchanges according

to communications verification intervals.

Network Address

RF400 network address. In a PakBus network all

RF400s must have the same network address.

Node

Another term for a PakBus device in a network.

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