Issue
In Function Block Editor, it is possible to define units for function blocks, and these units can only be set to basic units. There is no way to add a metric prefix to the unit. For example W or Wh can be used, but it is not possible to define kW, MW or kWh, MWh.
Product Line
EcoStruxure Building Operation
Environment
Building Operation Workstation version 1.8 or earlier
Cause
Metric prefixes are not implemented for function blocks in Building Operation version 1.8 or earlier.
Resolution
Upgrade EcoStruxure Building Operation to version 1.9 or later. When editing a function block In Function Block Editor click Select unit and choose unit and Prefix.