In the Daylighting:ReferencePoint object you will insert the X, Y, and Z coordinates so the sensor is located near the ceiling. Then in the Daylighting:Controls object you will have to change "Glare Calculation Azimuth Angle of View Direction Clockwise from Zone y-Axis {deg}" from 0 to 180.
Take a look at the DaylightingDeviceShelf.idf at the EnergyPlus example file folder.
Best,
Alex
On Thursday, November 3, 2016 10:24 AM, "my_sunny_night@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
Hi All, Can I have a daylighting control on the ceiling, downwards? Thanks
__._,_.___
Posted by: Alex Vlachokostas <alexvlachokostas@xxxxxxxxx>