## Display2 microblocks Display microblocks communicate directly with BACnet objects, and can be used to integrate BACnet devices into the WebCTRL® system. They can be referenced on graphics, allowing any vendor's BACnet equipment to be integrated into the system's interface. Display microblocks differ from other microblocks: They are not downloaded into a controller; they are modeled in the system database. They cannot be used in a control program's control logic, although they can be the source of alarms. A single microblock can read from or write to multiple properties in a BACnet object.
| BACnet Modeled File This microblock defines a standardized object that is used to describe properties of data files that can be accessed using BACnet File Services.
| BACnet Modeled Group This microblock defines a standardized object whose properties represent a collection of other objects and one or more of their properties. A group object is used to simplify the exchange of information between BACnet Devices by providing a shorthand way to specify all members of the group at once.
| BACnet Modeled Loop This microblock defines a standardized object whose properties represent the externally visible characteristics of any form of feedback control loop.
| BACnet Modeled Pulse Converter This microblock defines a standardized object that represents a process in which measurements represented by pulses or counts, such as electric power, might be monitored at intervals for applications such as peak load management that require periodic measurements but not a precise accounting of every input pulse or count.
| BACnet Modeled Accumulator This microblock defines a standardized object whose properties represent the externally visible characteristics of a device that indicates measurements made by counting pulses.
| BACnet Modeled Collector This microblock reads properties from a BACnet proprietary collector object (BACnet object type 771).
| BACnet Modeled Table This microblock reads properties from a BACnet proprietary table object (BACnet object type 773).
| Device Alias This microblock works with the Device Alias field in every Display microblock to enable efficient re-use of a control program for multiple BACnet devices. You define a character string, or Device Alias, for a particular Device Instance in this microblock. Then you use the same character string in the Device Alias field of any Display microblocks that you want to use the same Device Instance. At runtime, the system replaces the Device Alias character string in a Display microblock with the Device Instance defined in the Device Alias microblock to create a BACnet address.