Settings; Operation Principle - ABB REL650 Technical Manual

1MRK 506 382-UEN A
17.6.2
Table 514: HORZCOMM Non group settings (basic)
Name Values (Range)
Operation
Table 515: ADE Non group settings (basic)
Name Values (Range)
Operation
TimerClass
TimeDomain
17.6.3
Line distance protection REL650 2.2 IEC
Technical manual
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.

Settings

Unit
Off -
On
Unit
Off -
On
Slow -
Normal
Fast
Local without DST -
Local with DST

Operation principle

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
Step Default
- Off
Step Default
- Off
- Slow
- Local with DST
Section 17
Station communication
Related documents.
Description
Operation
Description
Operation
Timer class
Time domain
IP14441-1 v2
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IP14439-1 v2
M15083-3 v2
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