Previous Topic

Next Topic

Display microblocks

Display microblocks allow WebCTRL to communicate directly with BACnet objects in other vendor's equipment. They are not downloaded into a control device and therefore cannot be used as part of the EIKON for WebCTRL logic in a control program. They exist solely in the WebCTRL database and can be used to display and modify information from other vendor's equipment. They allow the WebCTRL operator to view and edit the status of BACnet objects in this equipment. They can be referenced on WebCTRL graphics, allowing any vendor's BACnet equipment to be integrated into the WebCTRL user interface.

  • Display microblocks differ from other microblocks in that:
  • They are not downloaded into a device
  • They can not be used in a control program's control logic (They can, however, be the source of alarms in WebCTRL to alert users to out-of-normal conditions.)
  • A single microblock can read or write multiple properties
  • They have no input or output wires

The BACnet Display menu contains display microblocks that are used to read and write values to devices on a BACnet network. Detailed information about the settings is available in the ASHRAE BACnet Standards (ANSI/ASHRAE Standard 135-1995) Clause 12.

BACnet Display microblocks are linked to the other vendor's equipment (BACnet device) in SiteBuilder. Once the link to the device is established, each microblock only needs to specify the instance number of the BACnet object it is displaying to complete the link.

The following microblocks are available.

BACnet Analog Input Display Object                             

BACnet Binary Input Display Object

BACnet Multi-State Input Display Object

BACnet Analog Output Display Object

BACnet Binary Output Display Object

BACnet Multi-State Output Display Object

BACnet Analog Value Display Object

BACnet Binary Value Display Object

BACnet Mutli-State Value Display Object

BACnet Calendar Display Object

BACnet Trend Log Display Object

BACnet Schedule Display Object

BACnet Event Enrollment Object

BACnet Notification Class Display Object

BACnet Program Display Object

BACnet Device Display Object