CHAPTER 2: RS485 INTERFACE IEC 60870-5-103 SERIAL COMMUNICATION
SR3 SERIES PROTECTIVE RELAY PLATFORM – COMMUNICATIONS GUIDE 2-23
Data management
The 3 Series relay supports a fixed profile and data that is configurable using the EnerVista
3 Series Setup program.
The data that can be configured are:
• digital states
•measurands
•commands.
Digital states Digital states in the relay may be mapped using the EnerVista 3 Series Setup program. By
default, states are mapped to information numbers proposed by the standard, but the
user may delete these mappings if desired.
All the mapped information will be sent as a response to a general interrogation like ASDU
1.
For the other states, the customer can assign:
1. Information Number <1..255>
2. Function Type <0..255>.
This means that for each digital point 3 settings are required.
Example:
The “Point Entry Digital Status” reuses the DNP Binary Input 43029, 43030, …
Measurands Some analog points are supported by the 3 Series relay with compatible information
numbers that have been identified in the device profile.
For the other measurands, it is possible to use the EnerVista 3 Series Setup to select the
desired point and assign the Identification Type (3 or 9), Function Type <0..255>, and
Information Number <1..255>.
If the user selects Identification Type 3 (ASDU 3) only four measurands are available for
configuration, but if Identification Type 9 (ASDU 9) is selected, up to nine measurands can
be sent in the IEC103 slave answer. For each measurand, all metering values that the 3
Series relay
supports, are available in order to be mapped. There are 3 possible
configurable ASDUS.
For example, eDataVab is the index in the Modbus Memory Map.
Settings Digital Status Information Number Function Type
Point 1 Entry Select entry from list <0 – 255 > <0 – 255 >
….
.…
Point 64 Entry Select entry from list <0 – 255 > <0 – 255 >
Modbus Address Description Value Format
43879 Point 1 Entry Digital Status 0x8242 (Undercurrent Trip) FC134
44223 Point 1 Entry Function Type 160 F1
44224 Point 1 Entry Information Number 144 F1
Modbus Address Description Value Format
44384 First ASDU Identification Type 3 or 9 F221
44385 First ASDU Function Type <0 - 255 > F1
44386 First ASDU Information Number < 0 - 255 > F1
44387 First ASDU Scan Timeout < 0 - 1000> secs F1