Multiple systems can exist in each controller. For each type of system, there are standard equipment and variables that apply. The process is similar to searching a catalog and finding the product that fits project requirements. The first step in the CARE process is the creation of a plant schematic. A plant schematic is a combination of segments that show the equipment in the plant and how it is arranged.
Segments are elements of a control system, for example, boilers, pumps, and other devices.
Elements include sensors, status points, valves, etc. Provided with CARE is a macro library that has predefined elements and plants. Predefined segments appear in the dropdown list under the Segments menu bar item. When a user selects a segment, for example, 4. Sensor, CARE software prompts for additional information about the segment, for example, sensor type.