CHAPTER 3: ETHERNET INTERFACE IEC60870-5-104 PROTOCOL
SR3 SERIES PROTECTIVE RELAY PLATFORM – COMMUNICATIONS GUIDE 3-31
IEC 60870-5-104 point lists
M_SP can be configured to a maximum of 64 points. The value for each point is user-
programmable and can be configured by assigning operands.
Up to 32 Measured values (M_ME) can be configured assigning metered values to each
data point.
The Commands points (C_SC or C_DC) can be configured to a maximum of 16 points
selecting data from a list of Virtual Inputs and Force Coil commands.
The following Integrated Total (M_IT) will be added to the set of data:
• Total Number of Trips
The table below shows all the Configurable Points settings:
NOTE:
The settings marked "*" are the same as those used by the DNP 3.0 protocol to configure
the point mapping from address 43878 to 44101.
The IEC 60870-5-104 Deadbands settings are used to determine when to trigger
spontaneous responses containing M_ME_NB_1 analog data. Each setting represents the
threshold value for each M_ME_NB_1 analog point.
For example, to trigger spontaneous responses from the 3 Series relay when a current
value changes by 15 A, the "Analog Point xx Deadband" setting should be set to 15. Note
that these settings are the default values of the deadbands. P_ME_NB_1 (parameter of
measured value, scaled value) points can be used to change threshold values from the
default, for each individual M_ME_NB_1 analog point.
There are three ways to send the measurands to the Master station. As the measurands
will be part of the General Group and Group 2, when a general interrogation or group 2
interrogation takes place, all the measurands will be included in the response. There is also
a cyclic data period setting where the scan period is configured to send the measurands to
the Master. The final way is to send the measurands spontaneously when a deadband
overflow takes place.
Groups of Data
The data will be organized in groups in order to provide values when the controlling station
requests by general or group interrogation.
Group 1 will be set by the 64 Single Points (M_SP).
Group 2 will be set by the 32 Measured values (M_ME).
Settings Range Default
Binary Input Point 0 Entry* Operands Off
Binary Input Point 63 Entry* Operands Off
Analog Input Point 0 Entry* Analog Parameters Disabled
Analog Input Point 0 Scale Factor* 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000,
100000
1
Analog Input Point 0 Deadband* 0 to 100000000 30000
Analog Input Point 31 Entry* Analog Parameters Disabled
Analog Input Point 31 Scale Factor* 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000,
100000
1
Analog Input Point 31 Deadband* 0 to 100000000 30000
Binary Output Point 0 ON* Virtual Input 1 to 32 and Force Coils Off
Binary Output Point 0 OFF* Virtual Input 1 to 32 and Force Coils Off
Binary Output Point 15 ON* Virtual Input 1 to 32 and Force Coils Off
Binary Output Point 15 OFF* Virtual Input 1 to 32 and Force Coils Off
To Next Page
Loading...
Need help?
General
