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PakBus Networking Guide

its command/setup interface. The "t" or "tables" command will report the

NL100’s current routing tables.

Every router (including LoggerNet) sends around its neighbor list to every

other router. Routers construct their Routing Tables using their own neighbor

list and the neighbor lists (all with hop metrics) received from the other routers

in the network.

A device will be removed from another device’s neighbor list (and routing

table) if a hello exchange fails after 4 attempts. The significance of this is, for

example, that if a CR10XPB is a router to a CR205, but is not trying to issue a

P190, P191, P192, P196, P198 or P224 message, then the CR10XPB can only

continue to route packets to it if it maintains the CR205 as a neighbor, or is able

to route through a router that has the CR205 as a neighbor.

Reset Router

To reset a datalogger router using a CR10KD, enter *D15 and re-enter the

PakBus Address, or if there is a neighbor filter, you can zero the port code and

re-enter it.

You can reset a router under program control using P192 with code 12 in

Parameter 3.

7.5.2 LoggerNet Routes

LoggerNet has two different routing tables. One is for ‘Static’ Routes and the

other for ‘Dynamic’ Routes. Either kind of route can be used to establish a

connection.

7.5.2.1 Static Routes

Static routes exist by virtue of a device map. They are theoretical routes via a

presumed neighbor. LoggerNet falls back on a static route to attempt a

connection with a device in the absence of a dynamic route. For example,

LoggerNet can use a static route to connect with a device before there has been

sufficient time to establish a dynamic route via beaconing, or where LoggerNet

beacons have been disabled by making the beacon interval = 0. Once a

connection is made, the device becomes a neighbor to LoggerNet and remains

so until the LoggerNet router is reset.

7.5.2.2 Dynamic Routes

Dynamic routes are learned routes resulting from communications which

triggered a hello-exchange.

Dynamic routes are routes learned in the standard PakBus ways. If there is no

dynamic route, then LoggerNet uses the “static” route, which can either succeed

or fail. If it succeeds, then, normally, the PakBus discovery mechanism takes

place (hello-exchange between neighbors, passing neighbor lists among routers)

and a dynamic route is created.

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Campbell RF410 Bedienerhandbuch Seite 67