ABB Relion 670 series, Technical Manual

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18.8.16 Operation principle
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18.8.16.1 General
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IEC 60870-5-103 is an unbalanced (master-slave) protocol for coded-bit serial communication
exchanging information with a control system, and with a data transfer rate up to 38400 bit/s. In
IEC terminology, a primary station is a master and a secondary station is a slave. The
communication is based on a point-to-point principle. The master must have software that can
interpret IEC 60870-5-103 communication messages.
Introduction to IEC 60870–5–103 protocol
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IEC 60870-5-103 protocol functionality consists of the following functions:
• Event handling
• Report of analog service values (measurements)
• Fault location
• Command handling
•
Autorecloser ON/OFF
• Teleprotection ON/OFF
• Protection ON/OFF
• LED reset
• Characteristics 1 - 4 (Setting groups)
• File transfer (disturbance files)
• Time synchronization
For detailed information about IEC 60870-5-103, refer to the IEC 60870 standard part 5:
Transmission protocols, and to the section 103: Companion standard for the informative interface
of protection equipment.
IEC 60870-5-103 vendor specific implementation
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The signal and setting tables specify the information types supported by the IEDs with the
communication protocol IEC 60870-5-103 implemented.
The information types are supported when corresponding functions are included in the protection
and control IED.
Be aware of that different cycle times for function blocks must be considered to
ensure correct time stamping.
Commands in control direction
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Commands in control direction, I103IEDCMD
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Command block in control direction with defined output signals.
Number of instances: 1
Function type is selected with parameter
FunctionType.
Information number is defined for each output signals.
Section 18 1MRK 502 066-UUS B
Station communication
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Technical manual