Omron PROFINET NX-PNC202, Руководство пользователя

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Terminology
28
NX-series PROFINET Coupler Unit User’s Manual (W623)
Terminology
Term
Abbre-
viation
Description
Communications Coupler Units --- The generic name of an interface unit for remote IO communications on
a network between NX Units and a host network IO Controller.
General Station Description Markup
Language
GSDML A text file that contains general and device-specific specifications for
communication and network configuration..
Index --- The address of an NX object.
IO port --- A logical interface that is used by an NJ/NX-series CPU Unit or an
NY-series Industrial PC to exchange data with an external device (IO
Device or Unit).
IO refreshing --- Cyclic data exchange with external devices that is performed with prede-
termined memory addresses.
IO Controller from another manufac-
turer
--- A PROFINET IO Controller from another manufacturer.
Network Configuration Information --- The PROFINET network configuration information held by the PROF-
INET IO Controller.
NX Bus --- The NX-series internal bus.
NX-IO System --- A module type I/O system that consists of NX-series CPU Units or Com-
munications Couplers that use NX bus technology.
NX Unit --- An IO or System Unit connected to the bus of an NX Communication
Coupler Unit.
NX Unit message communications --- One form of NX bus communications that uses message communica-
tions to execute the functions of NX Units and access NX objects when-
ever required.
Object --- An abstract representation of a particular component within a device,
which consists of data, parameters, and methods.
PDO Communications --- An acronym for process data communications.
Programmable Logic Controller PLC An industrial digital computer used to control manufacturing processes.
Process Data --- Collection of application objects designated to be downloaded cyclically
or acyclically for the purpose of measurement and control.
Process Data Communications --- One type of NX bus communications in which process data objects
(PDOs) are used to exchange information cyclically and in realtime.
Process Data Object PDO A structure that describes the mappings of parameters that have one or
more process data entities.
Profinet IO Device Terminal --- A building-block remote IO terminal, which consists of a Communica-
tions Coupler Unit connected with NX Units.
PROFINET IO Device --- A device that outputs the data that is received from the PROFINET IO
Controller through the PROFINET network to a connected external
device, and sends the data that is input from a connected external
device to the PROFINET IO Controller through the PROFINET network.
PROFINET IO Controller --- A device that monitors the status of the connections with Profinet IO
Devices and exchanges IO data with Profinet IO Devices through the
PROFINET network.
Safety Extra Low Voltage SELV An electrical system in which the voltage cannot exceed Extra Low Volt-
age conditions.
Subindex --- The sub-address of an NX object.