• Enhanced the driver to cache the pointer file to disk so that it will not re-poll for data already collected on start-up.

• Changed the header text in the history mapping UI from "Gas Quality? to "Gas Composition (Mole%)?.

• Fixed an issue where the driver was producing duplicate EFM records for hourly history data.

• Fixed a UI issue where a duplicate archive assignment check would be done even if a meter was disabled. The assignment check is no longer performed for disabled meters.

• Improved the driver's EFM data collection performance and efficiency when intermittent communication errors are seen with the connection to the EFM data source. The optimizations are handled in the driver automatically and no project configuration changes are required in the driver UI.

• Enhanced the driver to support Configurable Addressing. This provides the flexibility to configure address ranges as needed to work with devices that do not use the standard Enron address extensions.

• Added option to automatically generate tags from the EFM configuration mapping.

• Added the EFM Mapping Device Property page to the Enron Modubs new device wizard. The Import and Export functions are not available in the new device wizard. Enabled the EFM mapping controls on the EFM Meters new device wizard property page.

• Made the "Meter Name" element non-optional in XML project schema. Made the min and max number of meters twelve in the XML project schema.

• Updated the driver with the new Connection Sharing feature.

• Fixed an issue where the RTS and Inter-Request Delay settings were not being respected during the write portion of a Read/Modify/Write transaction.

  Note: A Read/Modify/Write transaction occurs when writing to a bit within a register.

• Removed the ability for meter names to begin with an underscore, contain quotation marks or periods, or have leading or trailing whitespace.

• EFM upload (data collection) architecture was enhanced to improve application scalability for projects containing a large number of EFM meters per poll group.

This new serial driver communicates with a range of devices that support the Enron Modbus protocol, which are primarily used in Oil & Gas applications. It supports real-time communications as well as Electronic Flow Measurement (EFM), where EFM data is collected and logged via the EFM Exporter Plug-In.