follows the reference model for open system interconnection (OSI) designed by the
International Standardization Organization (ISO).
In this document the most common addresses for commands and events are
available. For other addresses, refer to section
It is assumed that the reader is familiar with LON communication protocol in
general.
14.6.2
Settings
IP14441-1 v2
PID-593-SETTINGS v11
Table 425:
HORZCOMM Non group settings (basic)
Name
Values (Range)
Unit
Step
Default
Description
Operation
Off
On
-
-
Off
Operation
PID-4147-SETTINGS v7
Table 426:
ADE Non group settings (basic)
Name
Values (Range)
Unit
Step
Default
Description
Operation
Off
On
-
-
Off
Operation
TimerClass
Slow
Normal
Fast
-
-
Slow
Timer class
TimeDomain
Local without DST
Local with DST
-
-
Local with DST
Time domain
14.6.3
Operation principle
IP14439-1 v2
M15083-3 v2
The speed of the network depends on the medium and transceiver design. With
protection and control devices, fibre optic media is used, which enables the use of
the maximum speed of 1.25 Mbits/s. The protocol is a peer-to-peer protocol where
all the devices connected to the network can communicate with each other. The
own subnet and node number are identifying the nodes (max. 255 subnets, 127
nodes per one subnet).
The LON bus links the different parts of the protection and control system. The
measured values, status information, and event information are spontaneously sent
to the higher-level devices. The higher-level devices can read and write memorized
values, setting values, and other parameter data when required. The LON bus also
enables the bay level devices to communicate with each other to deliver, for
example, interlocking information among the terminals without the need of a bus
master.
The LonTalk protocol supports two types of application layer objects: network
variables and explicit messages. Network variables are used to deliver short
Section 14
1MRK 505 384-UEN A
Station communication
560
Breaker protection REQ650 2.2 IEC
Technical manual
Summary of Contents for impreza 2017
Page 1: ...RELION 650 SERIES Breaker protection REQ650 Version 2 2 Technical manual...
Page 2: ......
Page 32: ...26...
Page 42: ...36...
Page 50: ...44...
Page 168: ...162...
Page 226: ...220...
Page 396: ...390...
Page 498: ...492...
Page 512: ...506...
Page 528: ...522...
Page 632: ...626...
Page 650: ...644...
Page 738: ...732...
Page 784: ...778...
Page 785: ...779...