Echelon OpenLNS Commissioning Tool - Manual (Page 380)

364 Appendix B – Glossary
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.
Synchronized
The state of an OpenLNS CT network design when an OpenLNS CT drawing and the physical devices
on the network match the OpenLNS network database.
Target
The destination of a connection. Each connection is defined in terms of a hub and a one or more
targets connected to the hub. For network variable connections, the hub may only be a single input or
output network variable in the connection. For example, if the hub is an output network variable, all
the targets in the connection must be input network variables.
Terminator
Provides electrical termination for twisted pair channels. Properly installed terminators prevent signal
reflections and improve communication reliability.
Test
A management command used to ensure that a device or functional block is operating and is
configured correctly.
TP/FT-10
The free topology twisted pair L ON W ORKS channel type, 78kbps bit rate.
TP/XF-1250
A bus twisted pair L ON W ORKS channel type, 1.25Mbps bit rate.
TP/XF-78
A bus twisted pair L ON W ORKS channel type, 78kbps bit rate.
Transceiver
A device that is both a transmitter and a receiver for a communications channel. In a L ON W ORKS
network, it is the component that physically connects a Smart Transceiver or Neuron Chip to its
channel. The transceiver implements layer 1 of the ISO/IEC 14908-1 Control Network Protocol.
Unacknowledged Service
A service of the ISO/IEC 14908-1 Control Network Protocol where each message is sent once to the
addressee(s). There is no acknowledgement from the addressee(s) that the message has been delivered.
Unattached
The state of OpenLNS CT when it is not connected to a L ON W ORKS network.
Unconfigured
A device state where the device has an application image, but no network image. The device must be
configured before it can operate on the network.
User-defined Configuration Property Type (UCPT)
A non-standard data point used for configuration of the application in a L ON W ORKS device. UCPTs
should be used only when there is no appropriate standard configuration property type (SCPT) defined.
L
ON M ARK -certified devices must have UCPTs documented in resource files according to a standard