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Appendix A. Glossary of PakBus Terms

Active Interface

An RF400 Series’ or MD485’s selected com port. It

could be SDC, CSDC 7, CSDC 8, Modem Enabled, or

RS-232.

Beacon

A broadcast packet intended to discover in-range

neighbor PakBus devices. Devices that receive a

beacon answer by initiating a hello-exchange with the

beaconing device if not already neighbors. A device

with neighbor filter will ignore beacons from addresses

not in their potential neighbor list unless the beacon

address is ≥ 4000.

Beacon Interval

User assigned interval between broadcast beacons.

BMP5

Block mode protocol 5. The datalogger application

layer packet protocol used in PakBus communications.

Broadcast

Sent to all PakBus devices in the network within range.

Non-CRBasic

PakBus

Datalogger

CR10X, CR510, or CR23X datalogger.

Client

The client part of the client-server architecture.

Typically, a client is an application that runs on a

personal computer that relies on a server to perform

certain operations. A PakBus example: ConnectScreen

and Setup in LoggerNet are clients to the LoggerNet

server.

Communications

Verification

Interval

The interval of time that a PakBus device uses to

determine when it’s time to send a hello message to a

neighbor to see if it can still respond and remain a

neighbor. The CVI is normally multiplied by a factor

of 2.5 for such use. CVIs are passed in hello

exchanges.

Concurrent

Communications

The ability of a PakBus datalogger to communicate

with several peripherals at the same time.

CSDC

Concurrent Synchronous Device Communications.

Clocked communications between datalogger and

addressed peripheral which can be interleaved with

communications from other addressed peripherals.

CS I/O

Campbell Scientific I/O interface. An interface with 9-

pin connector which has the appearance of a 9-pin RS-

232 interface but different line assignments and

functions.

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