OMNI Flow Computer

Subscription $1270/yr Pay an annual fee to use the software. Support & Maintenance is included. Add to Cart Added

Your cart cannot contain both a Subscription and a Perpetual product.

Please modify your cart to add this license type.

Add to Cart
Perpetual $3818 Pay a one-time product list price. Mandatory year-one Support & Maintenance Agreement is included. Add to Cart Added

Your cart cannot contain both a Subscription and a Perpetual product.

Please modify your cart to add this license type.

Add to Cart

Product Overview

The OMNI Flow Computer driver provides the ability to communicate with the OMNI 3000 and 6000 family of flow computers. It supports both real-time communications and Electronic Flow Measurement (EFM) for historical data. For real-time only communications, the OMNI Flow Computer driver can be purchased individually or as part of the Oil and Gas Suite. For applications requiring EFM and real-time communications, the OMNI Flow Computer driver can be purchased as part of the EFM Suite. EFM capabilities include scheduling and exporting EFM History, Alarms, and Events data to industry standard and custom formats.

  • Supports up 256 communication channels
  • Communication Serialization
  • Supports OMNI Security with Password Protection
  • Supports Archive Access Methods 1 & 2
  • Supports on-the-fly, user-configurable Read Block Sizes
  • Supports adjustable RTS Flow timing for Radio Modems
  • Time synchronization on EFM poll, user-specified interval, or time of day
  • Supports a Scan Mode setting for controlling client polling
  • Offers Modicon mode support
  • Device auto-demotion
  • Media Level Redundancy
  • Supports Strings
  • Supports Ethernet Encapsulation
  • Modem Support
    • Automatic dial configuration
    • Multiple phone number management
  • Omni Modbus
  • Omni Flow Computer 3000
  • Omni Flow Computer 6000
  • English
  • DDE Format CF_Text and AdvancedDDE
  • NIO Interface for iFIX
  • OPC .NET Service (OPC .NET) Version 1.00
  • OPC Alarms and Events (OPC AE) Version 1.10
  • OPC Data Access (OPC DA) Versions 1.0a, 2.0, 2.05a, and 3.0
  • OPC Unified Architecture (OPC UA) Clients
  • SuiteLink and FastDDE for Wonderware



  • Fixed an issue where some liquid orifice meter data wasn't exported correctly.



  • Added Modicon mode support.



  • Improved the clear cache logic to allow retrieval of all entries when applied.


  • Added additional options for time synchronization:
    • Only allow time synchronization when the difference between device and system time exceeds a certain threshold.
    • Perform a time synchronization on an EFM poll.



  • Resolved an issue introduced in the V6.0 release where the driver's EFM cache was reset for each device when the runtime was reinitialized.



  • Fixed an issue where reinitializing the runtime would cause the EFM cache to be reset.



  • Meters, Mappings, and Alarms are now represented in the Project Tree View to improve visibility and editing.
  • CSV import/export for mappings is now a right-click option for Mapping objects in the Project Tree View.
  • The Restore to Defaults mapping is now available under Edit | Connectivity and as a right-click option for Mapping objects in the Project Tree View.
  • Project files (.opf) now save both liquid and gas mapping values, though only one is shown at a time.


  • Added support for devices running in Modicon mode.



  • Enhanced the driver to cache the pointer file to disk so that it will not re-poll for data already collected on start-up.
  • Added support for scaling EFM values using the EFM Mapping in the GUI.
  • Updated the flow_time and meter_factor attributes to automatically apply scaling for legacy projects. These attributes were previously scaled but were not user-configurable.
  • Changed the header text in the history and batch mapping UI from "Gas Quality�? to "Gas Composition (Mole%)�? for gas devices and from "Mole % Composition�? to "Liquid Composition (Mole%)�? for liquid devices.



  • Added support for Liquid EFM. The driver now supports both Liquid EFM and Gas EFM models. The Liquid EFM model supports EFM configuration, hourly history, daily history, batch, alarms, and events upload. It also has the ability to configure and map OMNI archives.
  • Fixed an issue where flow time was not properly scaled. OMNI flow times are recorded in 500 millisecond ticks, and are now scaled to minutes for export to Flow-Cal and other formats.
  • Fixed an issue where alarm state values exported to Flow-Cal CFX V5 files were being decremented by one.
  • Added the archive number to the Event Log message that is displayed when the max size for an archive is set to zero in the device.
  • Fixed issues where the device error state was being improperly cleared after being set because of a DNR during an EFM history upload.
  • Fixed an issue where shared archive data would sometimes not be exported with a history record.


  • 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.
  • Fixed a device password login problem that caused the driver to stop polling for data until the server runtime was restarted. The error was triggered when Ethernet Encapsulation devices returned "Exception Code 5" as a result of a login attempt with an incorrect password.



  • Updated the driver with the new Connection Sharing feature.
  • Updated the driver schema to improve EFM meter name validation.
  • 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 of 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 grou



This new serial driver communicates with OMNI Flow Computers, 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.

Features when part of the EFM Suite

  • Support for Gas and Liquid EFM
  • EFM Configuration and Mapping
    • History, including hourly and daily Gas Chromatograph data
    • Batch
    • Liquid Product
    • Alarms
    • Events