CR200/CR200X Series Dataloggers - Campbell Scientific
CR200/CR200X Series Dataloggers - Campbell Scientific
CR200/CR200X Series Dataloggers - Campbell Scientific
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Section 14. PakBus Overview<br />
• Routers are measurement or telecommunications devices that route packets<br />
to other linked routers or leaf nodes.<br />
• Routers can be branch routers. Branch routers only know as neighbors<br />
central routers, routers in route to central routers, and routers one level<br />
outward in the network.<br />
• Routers can be central routers. Central routers know the entire network. A<br />
PC running LoggerNet is typically a central router.<br />
• Routers can be router-capable dataloggers or communications devices.<br />
The <strong>CR200</strong>(X) is always a leaf node. It cannot be configured as a router. The<br />
network shown in FIGURE. PakBus Network Addressing (p. 134) contains 6<br />
routers and 8 leaf nodes.<br />
Figure 49: PakBus Network Addressing.<br />
LoggerNet is configured by default as a router and can route datalogger to<br />
datalogger communications.<br />
14.3 Router and Leaf Node Configuration<br />
14.4 Linking Nodes: Neighbor Discovery<br />
To form a network, nodes must establish links with neighbors (adjacent nodes).<br />
Links are established through a process called discovery. Discovery occurs when<br />
nodes exchange hellos. A hello exchange occurs during a hello-message<br />
between two nodes.<br />
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