ClearSCADA

Realflo is a flow measurement application for the SCADAPack Smart RTU from Schneider Electric. 

SCADA Expert ClearSCADA includes an integrated driver for Realflo, which makes EFM management a whole lot easier. This is an extension to the SCADAPack Modbus driver for Realflo Gas Flow Computer-equipped SCADAPack controllers. A flow run object supports scheduled collection and demand polling of flow computer records: current readings, historical data (hourly, daily, event, alarm) and configuration data. Flow run data can be mapped to analog historical points in the ClearSCADA historical database. The flow run object supports time synchronization, and allows users to initiate an orifice plate change and change to gas composition. Recent enhancements in version 6.91 add new functionality for flow computation of Liquid Hydrocarbons such as oil, condensates, and natural gas liquids (NGLs) to the existing application. The liquids functionality provides a flow computation platform on which additional upstream focused measurement applications can be built, such as Net Oil Computation (NOC), and Well Testing for allocation.

Realflo has a long history, and for many years has been tightly integrated into ClearSCADA to provide centralized configuration and device management capabilities. As the level of functionality in the Realflo platform has been improved, so has the integration within ClearSCADA to support the new functionality. The table below summarizes the matrix of support in ClearSCADA for the various releases of Realflo.

This version of Realflo is supported
This version of Realflo is not supported
This version of Realflo is not supported in initial release. A Hotfix release is available.
See Note


  < Realflo v5.20 < Realflo v6.00 >= Realflo v6.70 > Realflo 6.70
See Note 1
>= Realflo v6.71 >= Realflo v6.73 >= Realflo 6.79 >= Realflo 6.80 >= Realflo 6.81 > Realflo 6.82
See Note 2
>= Realflo 6.90 >= Realflo 6.91 >= Realflo 6.93
ClearSCADA 2013 R2





ClearSCADA 2013 R2.1






ClearSCADA 2013 R2.2






ClearSCADA 2014 R1






ClearSCADA 2014 R1.1



 (Note 1)







ClearSCADA 2015 R1









 (Note 2)


ClearSCADA 2015 R2












ClearSCADA 2017













Note 1
Realflo v6.70 is not supported in the released version of ClearSCADA 2014 R1.
Supported only in hotfix build 75.5568.

The following 16-bit controllers support functionality only up to Realflo v6.70:

  • MICRO16
  • SCADAPack
  • SCADAPack Light
  • SCADAPack Plus
  • SCADAPack LP
  • SCADAPack 100 Small Memory
  • SCADAPack 100 Large Memory
  • SCADAPack 4202 GFC
Note 2
Realflo v6.82 is not supported in the released version of ClearSCADA 2015 R1.
Supported only in hotfix build 76.5745.

The following 32-bit controllers support functionality only up to Realflo v6.82:

  • SCADAPack 32
  • SCADAPack 32P