Overview Of Data Protocols - GE MiCOM P747 Agile Technical Manual

MiCOM P747
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OVERVIEW OF DATA PROTOCOLS

The products supports a wide range of protocols to make them applicable to many industries and
applications. The exact data protocols supported by a particular product depend on its chosen application,
but the following table gives a list of the data protocols that are typically available.
SCADA data protocols
Data Protocol
Courier K-Bus, RS232, RS485, Ethernet Standard for SCADA communications developed by Alstom Grid.
MODBUS RS485
IEC 60870-5-103 RS485
DNP 3.0 RS485, Ethernet
IEC 61850 Ethernet
The relationship of these protocols to the lower level physical layer protocols are as follows:
IEC 60870-5-103
MODBUS
Data Protocols
Data Link Layer EIA(RS)485
Physical Layer
P747-TM-EN-1
P747-TM-EN-1.1
Layer 1 protocol
Standard for SCADA communications developed by Modicon.
IEC standard for SCADA communications
Standard for SCADA communications developed by Harris. Used mainly in
North America.
IEC standard for substation automation. Facilitates interoperability.
IEC 61850
DNP3.0 DNP3.0
Courier Courier
Ethernet
Chapter 7 - SCADA Communications
Description
Courier
EIA(RS)232
Copper or Optical Fibre
Courier
K-Bus
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