Rockwell Automation FactoryTalk Historian SE 3.0 H2H Interface User Guide - Manual (Page 138)

Interface Diagnostics Configuration
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As the preceding picture shows, the ICU suggests an Event Counter number and a Tagname
for the I/O Rate Point. Click the Save button to save the settings and create the I/O Rate point.
Click the Apply button to apply the changes to this copy of the interface.
You need to restart the interface in order for it to write a value to the newly created I/O Rate
point. Restart the interface by clicking the Restart button:
(The reason you need to restart the interface is that the PointSource attribute of an I/O Rate
point is Lab .)
To confirm that the interface recognizes the I/O Rate Point, look in the pipc.log for a
message such as:
Historian-ModBus 1> IORATE: tag sy.io.etamp390.ModbusE1 configured.
To see the I/O Rate point‟s current value (snapshot), click the Refresh snapshot button:
Enable IORates for this Interface
The Enable IORates for this interface check box enables or disables I/O Rates for the current
interface. To disable I/O Rates for the selected interface, uncheck this box. To enable I/O
Rates for the selected interface, check this box.