Operating Instructions

Glossary
Siemens Building Technologies, Inc. Glossary-3
equipment controller
FLN device that provides additional point capacity to a field panel or provides individual room
or mechanical equipment control. The Actuating Terminal Equipment Controller—Electronic
Output is an equipment controller.
field panel
Device containing a microprocessor for centralized control of system components and
equipment controllers. A field panel samples and processes field data, initiates control
actions, communicates with its operators, and generates reports, displays, and warnings.
FLN
Floor Level Network. Formerly Local Area Network (LAN). Data communications link that
passes information from an FLN device to the building level network and from the building
level network to an floor level network device. The floor level network is used for the
exchange of data on all floor levels of a building. The network consists of TECs, unitary
controllers, differential pressure monitors, etc.
intercept
Offset that converts analog values (used by the controller) to a form that the user can
understand (engineering units). Point at which a line passes through the X axis of a
coordinate system. Slope and intercept constants are determined by the type of field
input/output represented by the physical or virtual point.
loopout
Output of the control loop expressed as a percentage.
night mode
Operational mode of the controller when it is using night temperature setpoints.
OFF text
Text indicating the de-energized state of a digital point (for example, OFF, CLOSED, NO).
ON text
Text indicating the energized state of a digital point (for example, ON, OPEN, YES).
override switch
Button on room temperature sensor that can be pressed by an occupant to change the status
of a room from night mode to day mode for a predetermined time.