Chapter 2 – Applications
22
Siemens Industry, Inc.
BACnet ATEC Owner's Manaul
125-5050, Rev. AA
4/20/2010

Fan Operation

The fan turns on when heating is required.

[insert TEC2567CD]

Application 2897 Slave Mode
Application 2897 is the slave mode application for the BACnet ATEC (see Ordering
Notes [ 9] for product numbers). Slave mode is the default application that comes up
when power is first applied to the controller. Slave mode provides no control. Its
purpose is to allow the operator to perform equipment checkout before a control
application is put into effect and to set some basic controller parameters (CTLR
ADDRESS, APPLICATION, etc.). A controller in default state can also be used as a
point extension device by unbundling spare I/O points at the field panel.

Using Auxiliary Points

It is possible to have extra points available on a BACnet VAV Controller — Electronic
Output in addition to the ones used by the current application that is running in the
controller. If these extra points are to be controlled by a field panel, then they must be
unbundled at the field panel.

Using the Controller as a Point Extension Device

If the controller is only used as a point extension device, with no control application in
affect, its application must be set to slave mode and points must be unbundled at the
field panel. All points must be controlled from the field panel in order to be used.