Siemens 125-5033 Owner's Manual page 32

Fume Hood Controller Owner's Manual
ON text
Text indicating the energized state of a digital point (for example, ON, OPEN, YES).
override switch
Button on room temperature sensor which can be pressed by an occupant to change the
status of a room from night mode to day mode for a predetermined time.
PID
Proportional, Integral, Derivative.
Portable Operator's Terminal
DOS capable laptop computer used along with the Controller Interface Software to monitor
and communicate with Terminal Equipment Controllers.
RTS
Room Temperature Sensor.
sash sensor actuator
Device that rides along the sash sensor strip to vary the resistance reading to the Fume
Hood Controller.
SI units
Systeme International d'Unites. The international metric system.
slave mode
Default application that comes up when power is first applied to a Terminal Equipment
Controller.
slope
Factor which converts analog values (used by the controller) to a form which the user can
understand (engineering units). Slope and intercept constants are determined by the type of
field input/output represented by the physical or virtual point.
stand-alone control
The type of control offered by a controller that is providing independent DDC control to a
space.
24 Siemens Building Technologies, Inc.