LIQUIDACIÓN, PROCEDIMIENTO CONCURSAL PREVENTIVO Y QUIEBRA
INTRODUCCIÓN DE LA UNIDAD 5
5.2 Convenio de Liquidación
Commissioning is not a process that is performed frequently. Done once when the SMP Gateway is deployed in the field, it may be executed later, during maintenance sessions or when new devices are added to the substation’s configuration.
Before letting the user perform commissioning in the field, a user that has the System Management privilege must activate the commissioning feature. Usually, this user would first make sure that all safety precautions have been taken, that the SMP Gateway is really going through maintenance and that the commissioning process may occur as planned. By activating the feature, the operator in charge of commissioning can then open a commissioning session, and do his work.
To activate the commissioning feature:
Connect to the SMP Gateway’s website, by following the procedure described in section 9.1, page 59.
At the website’s home page, under Commissioning Tool, click the Enable button on the left.
The button’s text will change to Disable, and the button on the right will become available. The operator may now open a commissioning session.
Note: Commissioning will remain active until the left button is clicked again to
deactivate it. If the SMP Gateway is restarted, the commissioning feature’s activity state will be persisted: if it was active prior to the restart, it will be active at startup and vice-versa. However, opened sessions are closed.
11.3
Opening a Commissioning Session
Once the commissioning tool has been activated on the SMP Gateway, any user that has the Operation privilege can open a commissioning session. Proceed as follows:
Connect to the SMP Gateway’s website, by following the procedure described in section 9.1, page 59.
At the website’s home page, under Commissioning Tool, click the Enable button on the right.
The Enable Commissioning Tool dialog box will appears.
Click Yes.
The button’s text will change to Disable and the Commissioning Tool tab is now available. To use the commissioning tool, simply click the Commissioning Tool tab.
Note: The commissioning session will remain open as long as the web browser will
remain connected to the website, or until the user click again the button on the right. The session is also closed when the SMP Gateway restarts.
11.3.1
The Commissioning Tab
The Commissioning tab looks quite similar to other data points tabs. It is divided in three sections:
The toolbar, which is located at the top,
Is used for filtering, forcing, control operation and acknowledging purposes. It is an extended version of the toolbar available in other data point tabs, and its content varies in function of the type of the selected data point(s). The following figure shows the toolbar for a binary input point:
The data points list.
Displays the data points of every protocol instance or subsystem of the SMP Gateway. This implies that a data point that is configured in a master protocol and in two slave protocols will be listed three times.
The Messages pane, which is located at the bottom.
Displays a log of all commissioning tool’s operations, statuses and errors.
The data points list’s column are mostly the same that are displayed in the other data points tabs. The following columns are specific to (or different in) the commissioning tab:
Instance.
The name of the protocol instance or subsystem to which the data point belongs.
Type.
The data point’s type.
Integer Value.
Usually, the integer value of an analog point is displayed here. In the commissioning tool tab, it is also used for the state of a binary input point, as the State column is only used for binary output points.
State.
As stated above, in the commissioning tool tab, this column is used to display the current state of a binary output point.
The various commissioning operations that you can perform are described in the following sections.
11.3.2
Forcing an Input Point
The most common commissioning operation is to force an input point to a specific value/state, and to verify that the forced value is correctly reported to the SCADA.
To force an input point to a specific value:
In the data points list, select the input point you want to test.
In the commissioning toolbar, specify the forced value/state:
If it is an analog input point, select whether to change the Integer or Float value of the point, using the Force drop-down list, and then type the forced value in the edit box.
If it is a binary input point, select the desired state using the Force drop down list.
Still in the commissioning toolbar, click Execute to force the point to the specified value.
In the Messages pane, you should see two new messages: the first one indicates that the force operation has been performed; the second displays the operation’s result.
If the operation was successful, the status column will display Forced (Test) for the data point.
If the operation was successful and both the SMP Gateway and the SCADA are correctly configured, the value/state changes should be reported correctly to the SCADA.
Note: You cannot force the value/state of multiple data points simultaneously.
11.3.3
Un-Forcing an Input Point
To un-force an input point:
In the data points list, select the forced input point.
In the commissioning toolbar, click Unforce. The point will revert to its current value/state.
To un-force multiple input points simultaneously:
In the data points list, select more than one input points that have been forced.
In the commissioning toolbar, click Unforce All.
In the message box that appears, click Yes to un-force the selected input points.
You can also un-force all forced data points, by clicking Unforce All in the commissioning toolbar.
11.3.4
Performing a Control Operation
When an IED support control operations, it is important to validate that its related output points are correctly configured on both the SCADA and the SMP Gateway sides. Such validation is achieved in two steps, for each output point:
Perform a control operation using the Commissioning Tool, to make sure that the point is correctly configured in the SMP Gateway’s master configuration and that the control result is correctly reported to the SCADA.
Perform a control operation from the SCADA standpoint, as a final validation to make sure that both the SCADA and the SMP Gateway’s slave configurations are correct.
To perform a control operation using the commissioning tool:
In the data points list, select the output point you want to test.
In the commissioning toolbar:
Specify the control type using the Control drop-down list.
Note: If the output point supports select and execute control types, remember to
test both control types.
Specify the control value:
If it is an analog output point, select the control value type (Integer or Float) using the appropriate drop-down list, and then type the control value in the edit box.
If it is a binary output point, select the control state (Pulse, Open or Close) using the appropriate drop-down list. If you selected Pulse, type the pulse’s duration, in milliseconds, in the edit box.
Click Execute to perform the control operation.
In the Messages pane, you should see two new messages: the first one indicates that the control operation has been performed; the second displays the operation’s result.
If the operation was successful and both the SMP Gateway and the SCADA are correctly configured, the control operation’s result should be reported correctly up to the SCADA.
Note: You cannot perform control operations on multiple output points simultaneously.
As mentioned earlier in this section, the validation of the output point`s configuration at the SCADA and in the SMP Gateway is achieved by performing a control operation directly from the SCADA. Even if it does not involve the commissioning tool, the web browser can still be useful, since it gives access to the SMP Gateway’s log files, including the Control log file.
Various entries are added to the Control log when a control operation is executed on the SMP Gateway, making it an essential resource for this portion of the commissioning task.
To consult the SMP Gateway’s Control log entries in the web browser:
Click the Logs tab.
In the left pane, select the Control log file. All the log entries will appear in the right pane, the oldest entry being displayed at the top.
11.3.5
Closing the Commissioning Session
Even if a commissioning session automatically ends when the web browser is closed, you should close the session manually.
Proceed as follows:
In the web browser, click the Home tab.
Under Commissioning Tool, click the Disable button on the right. The Disable
Commissioning Tool dialog box will appears.
As stated in the dialog box, the commissioning tool will restore all forced points to their acquisition values. Click Yes. The button’s text will change to Enable and the
Commissioning Tool tab will no longer be available, until a new session is opened..