For the purposes of this document, the terms and definitions given in the referenced OPC UA Specifications as well as the following apply.
Asynchronous POWERLINK Data
data in a POWERLINK network that is not time critical
Note 1 to entry: Within the POWERLINK cycle there is a specific period reserved for Asynchronous POWERLINK Data which is shared by all POWERLINK Devices. Each POWERLINK Device connected to the network can send asynchronous data by requesting it to the POWERLINK Managing Node. The POWERLINK Managing Node keeps a list of all asynchronous data requests and will subsequently grant the network access to one POWERLINK Device after the other.
communication process with predictable timing behaviour (I.e. the time when a message reaches the recipient is predictable)
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)
ethernet as standardised in IEEE 802.3 (non-deterministic operation in non-time-critical environments)
Network Management State of a POWERLINK Device
POWERLINK Controlled Node
POWERLINK Device without the ability to manage the SCNM mechanism
POWERLINK Device Profile
standardised or vendor specific definition of an object model
POWERLINK Managing Node
POWERLINK Device capable to manage the SCNM mechanism in a POWERLINK network
device in a POWERLINK network
data object, addressed by Index and Sub-Index
POWERLINK Object Dictionary
repository of all POWERLINK Objects accessible over POWERLINK communications
record data type (as defined in the POWERLINK specification EPSG DS 301)
POWERLINK XML Device Description
XML file for the description of the objects in a POWERLINK Object Dictionary (also called XDD)
Note 1 to entry: This description contains metadata about the POWERLINK Objects and about the POWERLINK Device.