3.4.2 Device identification
3.4.2.1 Device function type
The IEC 60870-5-103 standard requires that an IED is identified as a certain Device
type. The standard has only the following single functional device types:
• 128 distance protection
• 160 overcurrent protection device
• 176 transformer differential protection
• 192 line differential protection
Since the IEDs are multifunctional, the Device type is set to the private function type
value 9 as default. However, if this definition would cause incompatibility with some
client systems, the definition can be changed through the DevFunType n parameter.
The value in DevFunType n is automatically assigned to all IEC 60870-5-103 data
points that have their function type defined as 0. The user has to assure that no similar
IEC 60870-5-103 point definitions already exist with the same function type and
information number.
3.4.2.2 Device identification code
The device identification information for the IED consists of three parts.
• Compatibility level (COL) = 2
• Eight character ASCII ID string
• Internal code = 4 octets
The ASCII string consists of eight characters, for example, 620FE201.
6 2 0 F E 2 0 1
6 1 5 T E 0 8_
Series (615, 610, 620..)
Device type (REF, RET, REM..)
Region (E=IEC, A=ANSI)
Variant (up to 3 digit number,
padding space (_) characters 20H
added to the end if needed)
GUID-0B5D1BA1-7F2F-4BF3-82C6-75842001B2A4 V1 EN
Figure 3: Examples of device identification codes
1MRS757647 C Section 3
Vendor-specific implementation
620 series 25
Communication Protocol Manual
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