You need to configure a FloBoss Numeric Point with the correct Type, Location, and Parameter. The point has to have its Control aggregate enabled.
Details about the configuration of a DO point in a FloBoss, such as whether the DOUT type is latched, toggle, time duration or TDO toggle, and so on, are beyond the scope of this guide. However, assuming that you have a FloBoss with a DO that you have configured to your liking using ROCLINK 800 software, you can set the EU Value parameter, which is of type FP, by configuring a FloBoss Numeric Point with the correct TLP and calling the Control method on the point.
The Type for a DO point is 2 and the EU value Parameter is 13. The Location is hardware dependent.
For further information, (see FloBoss Numeric Point).