A major AOS (Apex Operating System) update has been released.

This update is for Apex (2016) only. An announcement of new Apex Classic firmware may be found HERE.

In this release, the primary fixes and enhancements are:

  • Fluid Monitoring Module (FMM) support for the Automatic Top-off Kit (ATK); this AOS contains new FMM module firmware
  • Resolves an issue with the checkmark not being visible in the checkboxes for Radion Clouds and Lightning
  • Fixes a uncommon issue with Radions when a larger quantity of Radion G4s are attached to a WXM; this AOS contains new WXM module firmware
  • Fixes an issue with loss of FMM functionality if an optical sensor is inadvertently connected to a FMM port manually configured for a leak detection sensor; this AOS contains new FMM module firmware
  • Fixes an issue with DO probe values displaying in PPM even if Saturation range is selected
  • Changes the syntax of the If Error command, and expands its use; previously, If Error was used only with WAVs; it may now be used in any output.
  • Adds a new programming command, 'when'.


See this sticky post for full details about the revised If Error statement and the new When statement.

This release has many other changes which will not be readily apparent to you as an end user. Mostly, such changes are code optimizations and fixes for less-common bugs.

IMPORTANT: After updating the AOS on your Apex (2016), go to the Module Setup page in either APEX Local or APEX Fusion, and update any module(s) which show OLD in the SWRev column.