ABB Relion 670 series, Техническое руководство

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The LON bus also has an open concept, so that the terminals can communicate with external
devices using the same standard of network variables.
Introduction of LON protocol
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For more information, refer to LON bus, LonWorks Network in Protection and Control, User’s
manual and Technical description.
LON protocol
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Configuration of LON
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LON network tool (LNT) is a multi-purpose tool for LonWorks network configuration. All the
functions required for setting up and configuring a LonWorks network, is easily accessible on a
single tool program.
Activate LON Communication
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Activate LON communication in the Parameter Setting tool under Main Menu/Configuration/
Communication/Station communication/ LON/HORZCOMM:1, where
Operation must be set to
ON.
Add LON Device Types LNT
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A new device is added to LON Network Tool from the Device menu or by installing the device from
the ABB LON Device Types package for LNT 505 using SLDT package version 1p2 r04.
LON net address
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To establish a LON connection, the IED has to be given a unique net address. The net address
consists of a subnet and node number. This is accomplished with the LON Network Tool by
creating one device for each IED.
Vertical communication
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Vertical communication describes communication between the monitoring devices and protection
and control IEDs. This communication includes sending of changed process data to monitoring
devices as events and transfer of commands, parameter data and disturbance recorder files. This
communication is implemented using explicit messages.
Events and indications
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Events sent to the monitoring devices are using explicit messages (message code 44H) with
unacknowledged transport service of the LonTalk protocol. When a signal is changed in the IED,
one message with the value, quality and time is transmitted from terminal.
Binary events
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Binary events are generated in event function blocks EVENT:1 to EVENT:20 in the IEDs. The event
function blocks have predefined LON addresses. Table 850 shows the LON addresses to the first
input on the event function blocks. Addresses to the other inputs on the event function block are
consecutive after the first input. For example, input 15 on event block EVENT:17 has the address
1280 + 14 (15-1) = 1294.
For double indications, only the first eight inputs 1–8 must be used. Inputs 9–16 can be used for
other types of events at the same event block.
Three event function blocks EVENT:1 to EVENT:3 running with a fast loop time (3 ms) are available
as basic in the IEDs.. The remaining event function blocks EVENT:4 to EVENT:9 run with a loop time
of 8 ms and EVENT:10 to EVENT:20 run with a loop time of 100 ms. The event blocks are used to
send binary signals, integers, real time values like analogue data from measuring functions and
mA input modules as well as pulse counter signals.
Section 18 1MRK 502 066-UUS B
Station communication
1136
Technical manual