Provides full access to real-time data for any OPC DA Client.
Performs DA synchronous and asynchronous:

• Read (polling from snapshot)
• Write (writing to snapshot)

Provides full access to historical data for any OPC HDA Client.
Compliancy with OPC HDA Clients requesting synchronous and asynchronous reads for:

• Raw data
• Data at time
• Processed data (such as interpolative, minimum, maximum, average, range and total aggregates).
• Modified data
• Item attributes

Compliancy with OPC HDA Clients requesting synchronous and asynchronous updates to:

• Insert / Replace item values
• Delete Raw
• Delete at time