VUA User Guide
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DNP3 MESA-ESS Virtual-Utility Application User Guide Home Page Notifications Underneath the main banner, there are a number of notification banners that may appear. Any connection related issues will appear in yellow. If there are no active alarm points, there will be a green banner indicating that there are ‘No Active Alarms.' If any alarms are active, they will be listed in red. Clicking on any active alarms will navigate the user to the Alarms page. Schedules Underneath the Notifications, there is a list of Active modes and their schedules. At the top of this list is a Combined Schedule, outlining the overlap. Hovering over the Combined Schedules will give a pop-up listing the schedules for that time period. To view Inactive schedules, click on the combined schedules listing, which will expand to show all modes. Favorite Points A graph at the bottom of the page will show recent history for any points that have been ‘favorited’ by a user. Config Page Modes and Functions There are two columns in the Home Page that pertain to collections of points: Modes and Functions. The difference between these two columns are that Modes contain an Enable point as part of their definition where functions do not. In the Modes column, there are three pertinent pieces of data. 1. A toggle switch indicating whether or not the mode is Enabled or Disabled. This toggle switch refers exclusively to the value of the Mode Enable point. Setting a toggle to enable will only be possible for modes that have a defined function test (see point #3). If the toggle is clicked and the send action does not receive a SUCCESS response, the toggle will revert and indicate the most recently Accepted mode enable value. 2. Mode Name. Clicking on this mode name will navigate the user to the Function Instance page where a user can define concrete instances for a given function or mode. 3. Count of defined instances for the given function or mode. The Functions column contains the Name and Instance Count, but does not have a toggle switch. Types and Categories For filtering and categorization of individual points, there are the point type and point category columns. Every defined point in the VUA has a point type. (The 4 most common of these are Analog Input, Analog Output, Binary Input, and Binary Output) Clicking on any of these point types will bring up the Points Page, which provides a listing of all the appropriate points. Point Categories are a categorization mechanism that allows the VUA operator to define a category for select points for easier identification. Two examples of this are 'alarm' points and 'mode enable' points. Alarm points, when given a non-zero value, are displayed in the alarm notification banner at the top of the Home page. Mode Enable points signify whether specific modes are active within MESA. Settings To connect to an outstation, the Settings button allows a user to define the location of the both the outstation and HTTP Server that handles communication with the outstation. Clicking Save will cause the VUA to reconnect to both the server and the outstation. Points Page This lists all points for a given filter, either Type or Category. Name This lists the point name, along with its group, index, and variation, which are used by MESA to identify the point. Clicking on the point name will bring up a pop-up that will allow a user to send a single point value to the outstation. Clicking on this header will sort the points by point name. For Binary points, any input other than True will evaluate to False. Description This point description is pulled from the point definition config that is ingested by the VUA during initial config. Last value(s) sent/received The most recent value either sent or received from the VUA. For Input points, these are values received from the outstation. For Output points, this will display the most recently attempted sent value, regardless of whether or not the value was successfully sent. To view the value most recently Accepted, check out the History page. N/A indicates that this point has never been sent or received. Time sent/received This timestamp corresponds to the last value. For output points, this indicates the most recent Attempt, not necessarily the most recent *Successful* attempt. N/A indicates that this point has never been sent or received. Status Like Value and Time, this displays the most recent value associated with the point. For input points, this is 'received.' For output points, this could be a number of statuses. The most important being SUCCESS, which indicates a successful transmission of a point to the outstation. N/A indicates that this point has never been sent or received. Clicking on this header will sort the points by status value. History Clicking on this button will navigate the user to the specified Point's History page, where they can view all historical values of that point. Favorite The last item on the row is a checkbox. Clicking on the checkbox will ‘favorite’ a point, causing its history to show up in the ‘favorites’ graph on the Home Page. History Page The history page allows a user to view all the past history of a specific point. The page as a whole is broken into two sections, a list of each point value, and a graph of those values. List On the left side of the screen, there is a table of every value sent (or received) to/from the outstation. Each row of the table has 4 columns: timestamp, value, and status indicators, and a delete button. Clicking on the delete button (it looks like a blue x) will delete that individual row from the table of point history. It will also update the graph on the right so the deleted point no longer appears. To delete historical rows in bulk, use the ‘Delete History Older Than’ widget. By default, the timestamp is set to the current time, so clicking the button without changing the timestamp will delete ALL historical records. To delete a subset of records, adjust the timestamp widget, then click the ‘Delete History Older Than’ button. Graph On the right side of the page, underneath the bulk delete widget, there is a graph of the historical data. This chart only graphs data values whose status is SUCCESS (for output points) or received (for input points). The graph is limited to the most recent 500 valid data points. For points with no valid history, or Array Type points, the graph will not display any data. Function Instance Page This page is a simple listing of all saved function instances for a given Function or Mode. Clicking on a Function Instance name will navigate a user to the Function Edit page. To create a New Instance, click on the Create Function Instance button. To delete a Function Instance, click on the Delete button. Function Edit Page Instance Name, Save, and Save As All Function Instances must have a name when they are saved. At the top of the Function Edit page, there is an input dialog for the Instance Name. When creating a new Function Instance, this dialog starts out blank, when editing an existing instance, that dialog is pre-populated with the existing Function Instance name. There are two options for saving a Function Instance: Save and Save As. When the Save button is clicked, the Function Instance will be saved under the name chosen in the dialog at the top of the page. If a user is editing an existing Function Instance, and changed the name of the Instance, that Instance will be renamed accordingly. If a user tries to rename it with the name of a different existing instance, a pop-up will appear, confirming the users decision to overwrite an instance they are not currently editing. As Opposed to Save, Save As will create a new copy of a Function Instance. Clicking the Save As button will prompt a new pop-up, allowing a user to provide a new name for the copied Function Instance. Similar to the Save functionality, if the name provided is already taken by another saved Function Instance, a pop-up confirming the decision will appear. After both a Save or Save As command is issued, the VUA will redirect the user to the Function Instance page. Deleting Function Instance After a Function Instance has been saved, if a user navigates to edit that instance via the Function Instance page, a Delete button will appear at the bottom of the page. Clicking on this button will delete the Function Instance and navigate the user back to the Function Instance page. Upload and Export JSON and CSV Files Users can upload CSV or JSON files populate Function Instances using the Upload File widget. Use the Choose File button to select the desired CSV or JSON. To export a Function Instance configuration, click on the Export button at the bottom of the page, and then choose whether to download the file as CSV or JSON. After selecting file type, the download should automatically start. Function Instance Step Table The majority of the Function Edit page is taken up with a table outlining all of the steps in that function. Each step corresponds to a point and together they constitute a MESA function or mode. Columns in the Step Table 1. Step Number 2. Point Name - This is the name of the point being described by the step. Similar to the Points page, clicking on the name of this point will bring up a pop-up where a user can send an individual point value to the Outstation. 3. Description - Point description loaded from the point definitions. If there is no description in the point defs, then this field will be empty. 4. Flags - Outlines various flags for the step. The most important of these is the Optional flag, which has values of Optional or Mandatory. To be MESA-compliant, function instances must have values for all Mandatory steps when they are sent to the outstation. 5. Value(s) - This is where a user can define values for each step in a Function or Mode. There are three types of input into this column 1. Float Field - The most common of the three. Blank text field that can contain any float value. 2. Array Type Field - Some points are Array Type points. These points will have a button next to them titled Enter array value(s). Clicking on that button will open up an Array Field pop-up where a matrix of point values can be defined. 3. Reference Points - The Final type of point is a reference point. Some mode points contain references to other functions: Curves and Schedules. In places where these references exist, a picklist will appear allowing a user to select which Function they want to relate to the Mode. Next to the picklist, there is also an Edit button, which can be used to edit the referenced Function. Depending on the value chosen in the picklist, when the Edit button is clicked, the edit popup will either contain the referenced Function, or will be blank if New is the selected value, allowing a user to create a totally new Child Function. 6. History - Clicking on this button will navigate the user to the specified Point's History page, where they can view all historical values of that point. Sending Functions The final button on the Page is the Send button. Clicking the Send button will send all of the current values in the Step Table to the Outstation as one Function. When the function has completed sending, a new Results page will appear, listing all of the sent points and values, along with the Status returned by the Outstation.
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