National Instruments NI-FBUS - Manual (Page 141)

Glossary
© National Instruments Corporation G-5 NI-FBUS Configurator User Manual
FTP File Transfer Protocol.
Function block A named block consisting of one or more input, output, and contained
parameters. The block performs some control function as its
algorithm. Function blocks are the core components you control a
system with. The Fieldbus Foundation defines standard sets of
function blocks. There are 10 function blocks for the most basic
control and I/O functions. Manufacturers can define their own
function blocks.
Function Block Application The block diagram that represents your control strategy.
Function Block Application
Editor window The middle window of the NI-FBUS Configurator where you create
your block diagram.
Function block execution
schedule A list of times in the macrocycle when the function block will begin
to execute its algorithm.
H
H1 The 31.25 kbit/s type of Fieldbus.
hex Hexadecimal. A base-16 numbering system which uses 0–9 and A–F.
HMI Human-Machine Interface. A graphical user interface for the process
with supervisory control and data acquisition capability.
Host device A computer or controller on a Fieldbus network.
HSE High Speed Ethernet.
I
I/O Input/output.
Index An integer that the Fieldbus specification assigns to a Fieldbus object
or a device that you can use to refer to the object. A value in the object
dictionary used to refer to a single object.
Input parameter A block parameter that receives data from another block.
IP Internet Protocol. An international-standard protocol used in network
transmission.
IRQ Interrupt request.