Glossary
G-6
ni.com
resource
Hardware settings used by National Instruments CAN hardware, including
an interrupt request level (IRQ) and an 8 KB physical memory range (such
as D0000 to D1FFF hex).
RTSI
Real-Time System Integration Bus. The National Instruments timing bus
that connects CAN and DAQ boards directly (via connectors on top of the
PCI-CAN and AT-CAN series boards, and the PXI trigger bus on the
PXI-846
x
series boards) for precise synchronization of functions.
S
s
Seconds.
sensor
A device that measures electrical, mechanical, or other signals from an
external, real-world variable; in the context of device networks, sensors are
devices that send their primary data value onto the network; examples
include temperature sensors and presence sensors. Also known as
transmitter
.
standard arbitration ID
An 11-bit arbitration ID. Frames that use standard IDs are often referred to
as CAN 2.0 Part A; standard IDs are by far the most commonly used.
T
trigger
Any event that causes or starts some form of data capture.
U
unsolicited
Connections that transmit data on the network sporadically based on an
external event. Also known as
nonperiodic
,
sporadic
, and
event driven
.
W
watchdog timeout
A timeout associated with a connection that expects to receive network data
at a specific rate. If data is not received before the watchdog timeout
expires, the connection is normally stopped. You can use watchdog
timeouts to verify that the remote node is still operational.
