IEC 61850 IED Simulator

IEC 61850 IED Simulator

The ASE61850 IED Smart is a fully functional IEC 61850 IED / Relay Simulator with IEC 61850 Server functionality, with scripting features and support for simulating substations compliant with the latest editions of the IEC 61850 Standard.

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Product Features

ASE61850 IED Smart is an IED Simulator that enables simulation of IEC 61850 Relays / IEDs and acts as IEC 61850 servers and supports GOOSE functionality. It offers a simulation of multiple Intelligent Electronic Devices (IEDs) simultaneously.

  • Simulation of standard IEC 61850-6 SCL files
  • Supports Logical Nodes and Common Data Classes of the substation, hydro, wind, and DER Models
  • Simulation of multiple IEDs
  • Supports all IEC 61850 8-1 services
  • Data simulation with millisecond accuracy
  • Tree-based view of simulated nodes

ASE_ASE-Suite_61850_DS-5.05


Configuration Details

Creating a New Project
ASE61850 IEDSmart IEC 61850 Protocol Simulator provides an option to create projects, add IEDs to the project, and start the entire project or specific IEDs within the project. This provides users to simulate a set of IED / Relays to simulate a substation or just one IED / Relay for testing specific functions.

Adding IED Configuration to Project

The user can add Individual IEDs to the project. The User also can Load an SCL File, and the IED name and Access point will automatically be updated from the SCL file. Users can create multiple instances of the same server by providing the number of server instances.

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ASE61850 IEDSmart IEC 61850 Server Simulation software allows users to set the Report SCAN rate in a millisecond. Each individual IED can be set with IP Addresses. The Software provides a very unique way for customers to create Virtual IPs and assign these to each IED.

The IEC 61850 Server Simulator software allows you to configure the following advanced settings.

  • Log Settings – To configure the IED log
  • Log level
  • General Settings
  • IEC 61850 server functions
  • Goose Settings
  • Time quality

Name of the Filed Description
Log Settings
Initialization Enable/Disable Initialization activities logging.
Configuration Enable/Disable Configuration change events logging.
Simulator Startup Enable/Disable Startup logging.
Simulator Stop Enable/Disable Stopping Activity logging.
Association Enable/Disable Association events logging.
Controls Enable/Disable Control events logging.
Variable write Enable/Disable Variable writes logging.
Substitution Enable/Disable Substitution events logging.
GOOSE Publisher Enable/Disable GOOSE Publisher messages logging.
GOOSE Subscriber Enable/Disable GOOSE Subscriber messages logging.
SMV Publisher Additional Control to Enable/Disable SMV publishing if an SMV simulation file is added and started.
Log Control Block Enable/Disable Log Control Block logging.
Name of the Filed Description
File Handling Enable/Disable File handling logging.
Setting Group Edit Enable/Disable Setting Group edits event logging.
Log Level Users can specify the log levels for debug messages.
There are two levels are provided.ERROR: Only the errors during run time operations will be
logged.FLOW: All errors as well as program flow during run timeoperations will be logged.
IEC61850 Server Functions
Reporting Enable/Disable Reporting publisher. Users cannot enable reporting without enabling Comm services.
Comm Service Enable/Disable Communication Services.
GOOSE Publisher Enable/Disable GOOSE Publisher.
GOOSE Subscriber Enable/Disable GOOSE Subscriber.
SMV Publisher Enable/Disable SMV Publisher.
GOOSE Settings
Override Retransmission Interval Overriding the Min/Max re-transmission(for GOOSE) values configured in the SCL file with following Min/Max values.
Min (GOOSE Re-
transmission)
A minimum interval of GOOSE re-transmission if ‘Override Retransmission Interval’ is checked.
Max (GOOSE Re-
transmission)
Maximum interval of GOOSE re-transmission if ‘Override
Retransmission Interval’ is checked.
Enable Test BIT Enable/Disable GOOSE Simulation bit.
General Settings
Non-Indexed Reports To force indexed reports to false. This configuration will be applicable only if the tag is missing in the SCL file configuration. If this parameter is not checked, then the tool will work with the SCL file configuration based on the indexed reporting tags in it. If the indexed reporting tag is missing in the SCL file and if this the parameter is not checked then indexed reporting will be enabled by default.
File Path Separator The separator used to separate folder names and Filename of the absolute path of a file. This is applicable only in the case of the file transfer.
Max Client Connection Users can configure the maximum number of Client connections that the Server can support. If User configures 4 client connections, then 5th IEC 61850 Client will not get a connection
Time Quality
Override Time Quality Check this to override the default time quality of IEDSmart with the user-configured values to that IED.
Leap Seconds Known Check this to set the Leap Seconds Known bit in time quality
Clock Failure Check this to set the Clock Failure bit in time quality
Clock not Synchronised Check this to set the Clock not Synchronised bit in time quality
Time Accuracy 5-bit value to specify time accuracy. 0-31 are the possible values

Advanced Configuration Parameters

Name of the Field Description
Initialization Enable/Disable Initialization activities logging
Configuration Enable/Disable Configuration change events logging.
Smart Startup Enable/Disable Startup logging.
Smart stop Enable/Disable Stopping activity logging.
Association Enable/Disable Association events logging.
Controls Enable/Disable Control events logging.
Variable write Enable/Disable Variable writes logging.
Settings Group Edit Enable/Disable Setting Group edits event logging.
Substitution Enable/Disable Substitution events logging.
GOOSE Publisher Enable/Disable GOOSE Publisher messages logging.
GOOSE Subscriber Enable/Disable GOOSE Subscriber messages logging.
Log Control Blocks Enable/Disable Log Control blocks events logging.
File Handling Enable/Disable File Handling events logging.
Comm Service Communication service can be enabled from the Advanced settings window
SMV publisher SMV publisher can be enabled from the Advanced settings window
Reporting Reporting publishers can be enabled from the Advanced settings window. Users cannot enable reporting without enabling Comm services.

Loaded SCL file can be viewed in the project window in a tree
the form which allows users to view/expand and drill down into
individual objects / LN’s.

Start IED
The user can start all the IEDs in a project, right-click on the project name and select “Start All IEDs” to start
all IEDs in the project.

The software allows you to start the servers individually or start the entire project. The status of the project and IEDs are
available in a user-friendly manner.

Figure 25: Status of IED

IEC 61850 Variables View
After successfully loading the IEC 61850 standard SCL file, the user can see the Logical Devices ( ), Logical Nodes ( ), Functional Constraints ( ), Data Attributes, and Data Sets ( ) under the “IEC 61850 Variables” window. The contents of each node can be seen in the right pane by clicking on the respective nodes, and their IEC 61850 path, type, and current value will be listed in the 61850 Variables window.

Watch Window
You can use the Watch Window to compare or analyze various variables that belong to different functional constraints (FCs). You can also use the Watch Window to edit the value of a variable. The variables can be added into the Watch Window from the IEC 61850 Variables view window. The selected elements can be deleted from the Watch window by right-clicking on the Watch window and selecting the “Remove” or “Remove all” option.

Global Watch Window

When more than one server in a project and the user needs to watch variables from different servers in a single window, the user can use the Global Watch Window. To add a variable to the Global Watch Window, the required variable must be selected from the project view window, right-click the variable and select the option “Add to Global Watch Window”.

Edit Quality
IEDSmart provides the option to edit the quality of any point.

Click on the value cell of the corresponding quality from IEC 61850 Variables View /Local Watch Window/Global Watch Window to get the popup to edit quality. See the image below.
Users can edit any bit in the quality file. Each bit or combination of bits is provided as a Combobox with possible
drop-down values. In addition to that, there are buttons for setting all bits together to 1(true) or to 0(false).
Click on the OK button to save the changes and the Cancel button to cancel the edit.

Edit Time Stamp
If the user needs to simulate a timestamp change for any kind of testing, then IED Smart provides the option to change the
timestamp of a point. In a normal scenario, the time stamp of each point will be the system time taken at the time of the update of the associated data. But if the user opts to edit the timestamp, the time won’t be updated automatically on changing the associated data, but the user entered time will be updated as the timestamp. Edit Time Stamp enables or disables the setting and is independent for each ‘t’ in the variable list. This can be enabled or disabled from the Variable View, Local Watch Window, or Global Watch Widow.

See the figure below.

Right-click on each ‘t’ to get the menu shown above and click on Enable Manual Time Stamp Edit. The item will be shown checked once it is enabled. The same menu item can be used to disable the feature by unchecking it. The enabled points will be marked as “Editable” in the remarks column. The “Editable” points will be available for edit on the left button click of the mouse.

Log View
The IEC 61850 server log can be seen in the IED Smart Log view window. IED smart uses different colors of logs for representing different types of operations. In addition, the user can save the log file, clear the log view, and configure the logging properties.

Figure 43: IED Smart Log View

Simulation Files
Users can create simulation files to simulate different substation conditions. The simulation files will be saved as
*.csv (Comma Separated Value) format in the project directory.

Adding New Simulation File
A New Simulation file can be created by clicking “Simulation-> New Simulation File. The new Simulation file will
be listed below the “Simulation” branch. The user will then be asked to enter a Simulation name as shown in the figure below. Click “OK” to add the Simulation into the project.

Editing Simulation Files
The simulation editor supports the following features:

Insert New 61850 Variables.

Edit Values of the Variables

Configure the time interval for Variables.
Configure whether the values change cyclically or not.

Remove Variables from the Simulation File.
Simulation file properties
Properties”.

Property Description
Out of Service Disable or Enable Simulation
Auto Start The simulation starts when IED starts running
Start on User request The simulation will start only on user request

Table: Simulation – Additional Options

View SG Settings
To view the SGCB Settings, the user needs to click “server->View SGCB Settings” as shown in the figure. In the figure below, “BCU” is the server.

The left tree view shows the settings groups configured in the SCL file. Mark shows the currently active group. Whenever the Setting Group is being modified by the client, it will be marked. The user can see the Settings Group element details by clicking on the respective group names.

View/Edit Configuration
The user can view or edit configuration settings by clicking “server->View/Edit Configuration” as shown in the figure. In the example, “BCU” is the server.

Sampled Value Publisher
Under every IED added in a Project, there will be an option for SV Simulation. See the below figure. The option is marked with a red-coloured ring.

Right-click on the ‘SVSimulation’ to add a New Simulation File. See the figure below. On clicking ‘New Simulation File,’ a popup window opens. Users can configure the simulation file and click OK. See the figure below. A simulation file will be added under the ‘SVSimulation.’ Double click on the simulation file to get the following window.

Parameters of Sampled Value Stream Configuration

Parameter Name Description
Control Block Name Name of the MSVCB/USVCB. Configured SV control blocks in
the loaded SCL will available in the dropdown.
SVID SVID of MSVCB/USVCB. On selecting the SV control block the corresponding SVID will be loaded from SCL.
Sample Rate Sampling Rate of SV
Nominal Frequency Nominal frequency is relevant when Duration is in Cycles. The number of cycles is decided based on Nominal frequency.
Duration Decides if the time duration configured for sampled value publishing is in Milliseconds/Seconds/Cycles
Enable Simulation Bit To enable/disable simulation bit
Parameter Name Description
SV channel
Configuration
SV channel configuration Includes the duration of sampled value publishing and the value used for publishing the samples of each dataset Element.
Parameter Description
Time Time duration to which the SV should be published after starting SV simulation. This can be either in Seconds/ MilliSeconds/Cycles. The above mentioned filed “Duration’’ decides the unit of ‘’Time’’. Users can add comma-separated values of ‘time’ along with comma-separated values of Dataset elements. The simulator sends samples based on the fist value of each dataset element for a duration configured first and then with the second value of each dataset element for a duration configured second and so on.
Dataset Element Current/Voltage Any valid dataset element of MSVCB/USCVB will have an
entry under ‘’SV Channel Configuration”. The user is supposed to enter the RMS value of Im/Vm of the sine wave expected to be generated.
Frequency Frequency of the sinusoidal signal for the corresponding
current/voltage signal
Phase Phase shift from the previously mentioned signal.

Table: SV Stream Configuration Parameters

Start or Stop SV simulation
ASE61850 IEDSmart supports Sampled Value Simulation and provides features for Starting and Stopping an SV Simulation.

SV IED Properties

Parameter Description
Start Discovery On Clicking this button, the IED start searching for
incoming SV packets and show the available publishers in
the network. See figure-61 shown below.
Save as PCAP This enables to save the subscribed file in PCAP format
Save as COMTRADE This enables to save the subscribed file in COMTRADE
format
Start SV subscription Select any of the discovered SVID and click on this
button tosave the file as PCAP/COMTRADE
Subscription Duration in Seconds This is the duration of subscription in seconds
Network card ID Network Interface card though which it accepts the
subscription
SV Subscription filename Filename to which the samples to be saved
SV Subscription files are saved at: This shows the location at which the file is saved. The
file locationis not editable.
Load PCAP The SV IED can act as a publisher also. A PCAP file with
SVpackets shall be loaded, selected, and transmitted.
Start This is the start button to transmit packets in the PCAP
file forthe selected SVID.
Packet details Here show the SVIDs available in the loaded PCAP. Users
can select any SVID and start publishing.

Script-based Simulation
The software has a robust scripting interface that helps write your own scripts to simulate values for the IEC 61850 Server for each Individual IED or Relay in a project.

The table below shows some of the functions used in the scripts.

Function name Description
GetVariableHandle Returns the handle of an IEC 61850 Variable.
Handle = GetVariableHandle(“variable name as string”)
Parameters:
IEC 61850 Variable name
Returns:
On error, this function will return -1 otherwise >= 0
Sample:
Dim handle
handle = IEC61850.GetVariableHandle(“BCUMeasurements/
MMXU1$MX$Hz$mag$f”)
ReadVariable Returns the value of an IEC 61850 variable.
Parameters:
IEC 61850 Variable handle.
Returns:
The current value of an IEC 61850 Variable.
Sample:
Dim value
Value = IEC61850.ReadVariable(handle)
WriteVariable Writes a value to an IEC 61850 Variable.
Parameters:
Handle – Handle to IEC 61850 Variable Value – Value to be
written to the variable. Returns:
On error this function will return -1 otherwise 0
Sample:
Dim handle, Value Value = 10
IEC61850.WriteVariable Handle, Value
SleepExecution Makes the function idle for a user-defined number of
millisecondsParameters:Time in milliseconds.
Sample:
IEC61850.SleepExecution(1000)
Trace Displays the trace messages on the log view of the smart
Parameters:
String.
Sample:
IEC61850.Trace(“sample message.”)

Table: Scripting – Functions List

Creating Virtual IPs
ASE61850 IEDSmart enables creating and testing 100’s of IEDs with a unique IP address to simulate a real substation with the Virtual IP capability. Users can create Virtual IP’s and assign them to the IEDs.

Edition 2 Index Option

Edition 2 supports “Indexed = false” operation. This specifies the maximum number of clients that can be connected is limited to 1, and the user doesn’t want to add the index to the RCB name. The ASE61850 IEDSmart supports this feature.

Command Line Execution

ASE61850 IEDSmart can be run from a command-line argument to support an unattended application launch for automated testing.

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