3.2 OPC UA for POWERLINK Information Model terms

For the purposes of this document, the terms and definitions given in the referenced OPC UA Specifications as well as the following apply.

3.2.1 Asynchronous POWERLINK Data

data in a POWERLINK network that is not time critical

3.2.2 Deterministic Communication

communication process with predictable timing behaviour (I.e. the time when a message reaches the recipient is predictable)

3.2.3 Isochronous POWERLINK Data

data in a POWERLINK network which is to be transmitted every cycle (or every nth cycle in case of multiplexed isochronous data)

3.2.4 Legacy Ethernet

ethernet as standardised in IEEE 802.3 (non-deterministic operation in non-time-critical environments)

3.2.5 NMT State

Network Management State of a POWERLINK Device

3.2.6 POWERLINK Controlled Node

POWERLINK Device without the ability to manage the SCNM mechanism

3.2.7 POWERLINK Device Profile

standardised or vendor specific definition of an object model

3.2.8 POWERLINK Managing Node

POWERLINK Device capable to manage the SCNM mechanism in a POWERLINK network

3.2.9 POWERLINK Device

device in a POWERLINK network

3.2.10 POWERLINK Object

data object, addressed by Index and Sub-Index

3.2.11 POWERLINK Object Dictionary

repository of all POWERLINK Objects accessible over POWERLINK communications

3.2.12 POWERLINK Record

record data type (as defined in the POWERLINK specification EPSG DS 301)

3.2.13 POWERLINK XML Device Description

XML file for the description of the objects in a POWERLINK Object Dictionary (also called XDD)