National Instruments Fieldbus User Manual
Page 31
Glossary
G-2
ni.com
Boolean
Logical relational system having two values, each the opposite of the other,
such as true and false or zero and one.
bps
Bits per second.
buffer
Temporary storage for acquired or generated data.
bus
The group of conductors that interconnect individual circuitry in a
computer. Typically, a bus is the expansion vehicle to which I/O or other
devices are connected. Examples of PC busses are the ISA and PCI buses.
C
C
Celsius.
cable
A number of wires and shield in a single sheath.
channel
A pin or wire lead to which you apply or from which you read the analog
or digital signal.
circuit
Interconnection of components to provide an electrical path between two or
more components.
CISPR
International Special Committee On Radio Interference.
control loop
A set of connections between blocks used to perform a control algorithm.
controller
An intelligent device, usually involving a CPU, that is capable of
controlling other devices.
current
The flow of electrons through a conductor.
D
DC
Direct current.
descriptor
A number returned to the application by the NI-FBUS Communications
Manager, used to specify a target for future NI-FBUS calls.
device
A sensor, actuator, or control equipment attached to the Fieldbus.
device ID
An identifier for a device that the manufacturer assigns. No two devices can
have the same device ID.