64 • SMP Gateway User Manual
In the left pane, click General, to display the list of general settings for the selected slave
protocol instance.
In the right pane, enter the protocol settings.
For instance, to configure a DNP3 slave component, you would provide settings such as:
The Link Address, which identifies the logical slave device. The address has to match
the address used by the control center to communicate with the SMP Gateway.
The Master Link Address, which identifies the control center.
Whether or not you want to support Unsolicited Reporting.
In the left pane, click Default Variations.
In the right pane, specify how you want the data points to be reported. For example, you may
want to specify that when there is a change to an analog input point, you want the change
reported as a 32-bit value, with the time at which the event took place.
A complete description of the protocol-specific settings is available in individual documents, such
as DNP3 Slave Protocol for example.
To access the various protocol documents:
Click Start, on the Windows taskbar.
Point to Programs, then Cybectec, then SMP Tools, and then Documentation.
In the Documentation menu, click Protocols.
10.3 Subscribing to the Master Data Points
Slave protocol instances subscribe to data points in the real-time database. Whenever a master
protocol instance writes to the database, the slave instance retrieves the data and applies its own
settings to make it compatible with the requirements of the control center protocol.
When you configure a slave protocol component, you select from among all the data points
defined by the master protocol components, those data points to which you want to subscribe.
In the left pane, click the slave protocol instance.
In the Tools menu, click Subscribe To.
The Subscribe to Master I/O dialog box appears.
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