Echelon IzoT Commissioning Tool User Manual

Page 382

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Synchronized

The state of an IzoT Commissioning Tool 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

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channel type, 78kbps bit rate.

TP/XF-1250

A bus twisted pair L

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channel type, 1.25Mbps bit rate.

TP/XF-78

A bus twisted pair L

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channel type, 78kbps bit rate.

Transceiver

A device that is both a transmitter and a receiver for a communications channel. In a L

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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 IzoT Commissioning Tool when it is not connected to a L

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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

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device. UCPTs

should be used only when there is no appropriate standard configuration property type (SCPT) defined.
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-certified devices must have UCPTs documented in resource files according to a standard

format, in order to allow the devices to be configured without the need for proprietary configuration
tools.

User-defined Network Variable Type (UNVT)

A non-standard network variable type defined by the manufacturer of a L

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device. UNVTs

should be used only when there is no appropriate standard network variable type (SNVT) defined.
L

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ARK

-certified devices must have UNVTs documented in resource files according to a standard

format, in order to allow the devices to be interoperable.

366

Appendix B – Glossary

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