CHAPTER 4Using the Gateway170Actuator ConnectionsAddIT RTUs can also be used to control actuators and to switch onor off pumps, valves, or other similar devices. You can connectactuators to digital, OC and SDI connector pins.Note: Detailed information is contained in the user manuals of therespective RTUs.Sensor Type ConfigurationA sensor type determines the attributes of a class of sensors whichcan be connected to a RTU for delivering specific measurementdata. As the output of a sensor depends not only on the magni-tude of the measured variable, but also on the physical propertiesand technology of the respective sensor, a conversion table (alsoreferred to as “linearization table”) is used to represent the outputof the sensor as required for processing and further interpretation.A conversion table may be valid for a singular sensor or for a wholeclass of sensors (i.e., for a sensor type).Several sensors (usually of different types) may be packed togetherinto a single device which will be designated as “combo sensor”.The sensor type configuration is required to determine the types ofsensors and conversion tables which can be used in the RTU net-work. For Adcon sensors, type data and conversion tables arealready preprogrammed in your A850 at your disposal to allow aquick connection of your RTUs. Detailed information about all sen-sors available from Adcon can be achieved from Adcon’s webside“http://www.adcon.at/english/produkte_sensoren_en.html”.Adding Custom SensorsIf you need to connect sensor types to your RTUs which are notpredefined Adcon standard sensor types, you must first defineyour sensors in the “Sensor Type Configuration”.
