my first question is what are you wanting to see from SCADA in the GIS and how do you want to use this information?
If just visualizing the volume of water at a point, then I would create an independent point feature class that you would place or create a feature at the location of the SCADA device and then export readings from your SCADA to this point feature class, updating the attribute that contains the reading. This feature class would not be versioned. If you are wanting to see the status of devices (valves, etc) that affect flow and you want this information in the utility network, you could create an app that pushes information from the SCADA to the utility network service using the Rest End Point to update the device status attribute in the default version and validate the update. If you are using a Geometric Network, you would need to writing a similar utility in ArcObjects or python to load the updated data to the feature. If updating the Geometric Network or Utility Network with information frequently, many features per minute, you could impact performance. There is a big difference between sensor data like volume of water vs device status information like valve open.
John Alsup
jalsup@esri.com
