Siemens BACNET 125-5037 - Manual (Page 45)

Siemens BACnet VAV Actuator Owner’s Manual
Siemens Building Technologies, Inc. 35
HMI
Human Machine Interface. Terminal and its interface program that allows you to
communicate with a field panel or equipment controller.
override switch
Button on a room temperature sensor that an occupant can press to change the
status of a room from unoccupied to occupied (or from night to day) for a
predetermined time.
pressure independent
Variable Air Volume (VAV) room temperature control system in which the
temperature drives an airflow setpoint.
PID
Proportional, Integral, Derivative.
RTS
Room Temperature Sensor.
setpoint
Virtual point that stores a point value such as a temperature setting. Points that
monitor inputs, such as temperature, report actual values.
SI units
Systeme International d'Unites. The international metric system.
slave mode
Default application that displays when power is first applied to an equipment
controller. No control action is initiated in the slave mode.
stand-alone control
Type of control offered by a controller that is providing independent DDC control to a
space.