Hawkins y Klau (agosto 2002)

Figure 48 displays the New Redundancy window. Table 44 describes the components of the New Redundancy window.

Figure 48 - New Redundancy Window

Component Description

Name

Allows you to enter the name of the redundant node, which becomes an element of the item ID for data items.

Automatically converted to title case for display purposes.

Enabled

Use this checkbox to enable (i.e., checkbox is selected) or disable (i.e., checkbox is cleared) communication for the object.

By default, the checkbox is selected.

Component Description Description

This field is optional and takes any user-defined text (64-character maximum) for documentation purposes.

By default, this field is blank.

Status Check Period

Allows you to enter a value to define how often (in milliseconds) to check connected redundant nodes to make sure they are still actively

communicating with a device.

Default = 5,000.

Connection Period

Allows you to enter a value to define how often (in milliseconds) to check connections that have failed (i.e., communication is down) to determine if connections have been restored.

Default = 1,000.

Redundancy Mode

Allows you to select, from the drop-down list, the style (Classic, Hot, Warm, Cold) of redundancy management that should be used by this group.

Default = Warm.

Failover Nodes

This section of the New Redundancy window displays those redundant nodes defined as part of this particular redundant set, and the priorities of the redundant nodes.

The Failover Nodes section contains the following fields and buttons which are described below: Configuration Node, Priority, Add Failover Node(s), Edit, Delete, Move Up, and Move Down.

Add Failover Node(s)

Select this button to access the Add Failover Nodes(s) window (Figure 49) which allows you to define one or more Failover nodes and assign a priority to them.

After defining the list of nodes, they will appear listed in the Failover Nodes section of the New Redundancy window.

Note: Once you have added a node, you can make changes to it, or delete it, or change its order within the list.

Edit

Select this button to access the Edit Failover Node window (Figure 50) which allows you to update the selected node.

This button is only available once a Failover node has been added to the list.

Delete Select this button to delete the selected Failover node or nodes.

This button is only available once a Failover node has been added to the list.

Move Up Select this button to move the selected Failover node up through the list, according to priority.

Move Down Select this button to move the selected Failover node down through the list, according to priority.

Configuration Node Displays the names of the added Failover nodes.

Component Description

Priority Displays the priority (High, Medium, or Low) assigned to the current Failover node. Nodes of higher priority are preferred to lower priority nodes.

OK Select this button to save any changes made and close the window.

Cancel Select this button to close the window without saving any changes made.

Table 44 - New Redundancy Window Components

Figure 49 - Add Failover Node(s) Window

Table 45 describes the Add Failover Node(s) window components.

Mode Description

Node(s) Name of the Failover node.

Priority Allows you to select a priority (High, Medium, or Low) for the current redundant node from the drop-down list. Redundant nodes of higher priority are preferred to those of lower priority.

OK Select this button to save any changes made and close the window.

Cancel Select this button to close the window without saving any changes made.

Table 45 - Add Failover Node(s) Window Components

Figure 50 - Edit Failover Node Window

Table 45 describes the Edit Failover Node window components.

Mode Description

Node Name of the selected Failover node.

Priority Allows you to select a priority (High, Medium, or Low) for the current node from the drop-down list. Nodes of higher priority are preferred to those of lower priority.

OK Select this button to save any changes made and close the window.

Cancel Select this button to close the window without saving any changes made.

Table 46 - Edit Failover Node Window Components

To create and configure a Redundancy node:

1. From the Configuration window, in the navigation pane, select and expand the following nodes:

• MyMatrikonOPC -> Localhost -> MatrikonOPC Server for Modbus ->

Advanced Options.

2. Select the Redundancy Configuration item displayed under the MatrikonOPC Server for Modbus.

3. The Redundancy Configuration page (Figure 51) appears on the right side of the screen.

Figure 51 - Redundancy Configuration Page

4. From the Toolbar, select the button.

Or,

From the navigation pane, right-click your mouse on the Redundancy Configuration item, and select New Redundancy from the displayed menu.

Or,

From the Edit menu, select the New Redundancy option.

5. The New Redundancy window (Figure 48) appears.

6. Enter a name for the redundancy node.

7. Enter or select a value to define the Status Check Period.

8. Enter or select a value to define the Connection Period.

9. Select a Redundancy Mode from the drop-down list.

10. Add one or more Failover nodes:

a. Select the button.

b. The Add Failover Node(s) window (Figure 49) appears.

c. Enter a name for the new Failover node.

d. Select a Priority from the drop-down list.

e. Click OK to close Add Failover Node(s) window and return to the New Redundancy window.

f. If required, add more Failover nodes by following step 10.

11. Select the OK button to close the New Redundancy window and return to the Configuration screen.

12. The newly-created configuration is listed on the Redundancy Configuration page (Figure 52).

Note: The Failover Nodes column on the Redundancy Configuration page displays the number of Failover nodes created and configured for the current Redundancy configuration.

Figure 52 - Redundancy Configuration Page