Echelon IzoT Commissioning Tool - Manual (Page 381)

Smart Connection Description (SCD)
A pre-defined connection description that IzoT Commissioning Tool automatically assigns to a
connection being created or changed based on the number of target network variables, whether the
target network variables are located on the same or different subnet, and the availability of network
variable aliases.
Source Address
The logical node address of the transmitting device contained in every packet transmitted over a
L
ON W ORKS network.
Standard Configuration Property Type (SCPT)
A standard set of configuration property types defined by the L ON M ARK Association to facilitate
interoperability. SCPTs are defined for a wide range of configuration properties used in many kinds of
functional profiles, such as hysteresis bands, default values, minimum and maximum limits, gain
settings, and delay times. SCPTs should be used in a L
ON W ORKS network wherever applicable. In
situations where there is not an appropriate SCPT available, manufacturers may define UCPTs for
configuring their devices. See the Echelon or L
ON M ARK website for a current list and documentation.
Standard Network Variable Type (SNVT)
A standard set of network variable types defined by the L ON M ARK Association to facilitate
interoperability by providing a well-defined interface for communication between devices made by
different manufacturers. SNVTs should be used in a L
ON W ORKS network wherever applicable. In
situations where there is not an appropriate SNVT available, manufacturers may define UNVTs for
communicating with their devices. See the Echelon or L
ON M ARK website for a current list and
documentation.
Stencil
A collection of master SmartShapes that can be reused in Visio.
Structured Object
A network variable or configuration property that has a type with multiple fields. Examples of
structured objects include SCPTmaxSend Time (has fields for day, hour, minute, second, and
millisecond in the following format: 0 0:00:00.000) and SNVT_switch_2 (has fields for state, setting,
and scene number in the following format: <state> 0.0 0).
Subnet
A logical collection of up to 127 devices on the same channel within a domain. Up to 255 subnets can
be defined within a single domain. Subnets cannot cross configured or learning routers.
Subsystem
A collection of application devices, routers, and functional blocks. With IzoT Commissioning Tool,
each subsystem corresponds to one page within an OpenLNS CT drawing. Subsystems allow you to
place application devices, routers, and functional blocks onto separate pages for organizational
purposes. You can place a subsystem within another subsystem, allowing you to create a subsystem
hierarchy for large networks. For example, a network may consist of HVAC, lighting, security, and
operator subsystems. These may be further divided into subsystems for each floor, and each floor
divided into subsystems for each room.
Supernode
A subsystem with a network variable interface. Supernodes enable a group of devices to be organized
into logical units with selected network variables from the devices within the supernodes. This allows
complex subsystem details to be hidden, reduces errors, and decreases the time required for network
engineering and commissioning. A supernode’s network variable interface may contain any network
variable on any device found within the supernode or its nested subsystems.
IzoT Commissioning Tool User’s Guide 365