Bus monitoring is a term used in flight testing when capturing data from avionics buses and networks in data acquisition telemetry systems. Commonly monitored avionics buses include
ARINC Standard buses such as ARINC-429, ARINC 573, ARINC 717ARINC 629 also known as Multi-transmitter Data BusARINC 664 also known as Deterministic EthernetARINC 825 Controller Area Network (CAN)Common Airborne Instrumentation Systems (CAIS)Cross Channel Data Link (CCDL) / Motor Controller Data Link (MCDL)EthernetFibre ChannelFirewire, IEEE 1394IRIG-106 PCMMIL-STD-1553RS-232/RS-422/RS-485STANAG-3910Time-Triggered Protocol (TTP)Typically a bus monitor must listen-only on the bus and intercept a copy of the messages on the bus. In general a bus monitor never transmits on the monitored bus. Once the bus monitor has intercepted a message, the message is made available to the rest of the data acquisition system for subsequent recording and/or analysis.
There are three classes of bus monitor:
Parser bus monitorSnarfer bus monitorPacketizer bus monitor referenceEver curious about what that abbreviation stands for? fullforms has got them all listed out for you to explore. Simply,Choose a subject/topic and get started on a self-paced learning journey in a world of fullforms.
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