Profinet Io Terms And Abbreviations - ABB FENA-01 User Manual

34 Introduction to the manual
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PROFINET IO terms and abbreviations

Term
Acyclic
communication
Array
Cyclic
communication
DCP
Fault
GSD file
Index
I/O controller
Master
Name
Parameter
Parameter
number
Parameter/Proce
ss
Data object
Process data
Explanation
Communication in which messages are sent only
once on request
Parameter consisting of data fields of equal data type
Communication in which parameter/process data
objects are sent cyclically at pre-defined intervals
Discovery Control Protocol. A protocol that allows the
master controller to find every PROFINET IO device
on a subnet.
Event that leads to tripping of the device
ASCII-format device description file in a specified
form. Each different slave type on the PROFINET IO
network needs to have its own GSD file. GSD files in
PROFINET IO are written in GSDML.
Access reference for objects in PROFINET IO
Control system with bus initiative. In PROFINET IO
terminology, I/O controllers are also called master
stations.
Control system with bus initiative. In PROFINET IO
terminology, master stations are also called active
stations.
Symbolic name of a parameter
Value that can be accessed as an object, eg, variable,
constant, signal
Parameter address
Special object that contains parameter and process
Special object that contains parameter and process
data
Data that contains Control word and reference value
or Status word and actual value. May also contain
other (user-definable) control information.