Campbell Scientific PakBus Networking Guide User Manual

Page 22

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Appendix A. Entering CR10X-PB PakBus Settings with a Keyboard Display

*D15 Routing Table Datalogger Memory Usage:

Per node in network

16 bytes

Per neighbor

8 bytes

Per router in network 2 x routers x (routers –1) bytes

For example:

Number of nodes = 4

CR10X-PB memory usage = 64 bytes

Number of neighbors = 3

CR10X-PB memory usage = 24 bytes

Number of routers = 2

CR10X-PB memory usage = 4 bytes

*D17 View Routing Table

*D17 01 :xxxx

PakBus Address of destination node

01 :yyyy

Packet sent via router with PakBus Address yyyy

01 :zzzz

The worst case response time between nodes in seconds
(Hop Metric)

02 :xxxx

PakBus Address of destination node

02 :yyyy

Packet sent via router with PakBus Address yyyy

02 :zzzz

The worst case response time between nodes in seconds
(Hop Metric)

0n :xxxx

PakBus Address of destination node

0n :yyyy

Packet sent via router with PakBus Address yyyy

0n :zzzz

The worst case response time between nodes in seconds
(Hop Metric)

If there is no router, only the neighbor is indicated in the *D17 routing table.
For example, if the device with PakBus address 3 is a neighbor to a datalogger,
the datalogger’s routing table will look like this:

01 :0003

PakBus Address of destination node

01 :1.0000 Worst case response time in seconds

The *D17 listing will change once the datalogger discovers a change in the
neighbor list that results in a change in the best routes to other nodes in the
network. *D17 shows the current best routes. It does not show all routes even
though the datalogger may have access to all possible routes to any given node.
If a router’s neighbor list changes, all routers are notified and will recalculate
their best route routing table based on the new information.

Although *D17 shows neighbors, in the case of multiple peripherals it does not
show the ports used to access the respective neighbors.

*D18 Set Beacon Interval and Port Protocol

Collect any wanted data before typing *0 to save *D18
edits to FLASH because final storage data will be cleared!

CAUTION

A-2

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