Siemens 125-5050 owner manual Glossary

Glossary

Glossary

The glossary contains terms and acronyms that are used in this manual. For definitions of point database descriptors, see Chapter 3 - Point Database [ 24] , in this manual.

	airflow
	Rate at which a volume of air moves through a duct. Usually expressed in cubic feet
	per minute (cfm) or liters per second (lps).
	algorithm
	Mathematical formula that uses varying inputs to calculate an output value.
	AVS
	Air Velocity Sensor.
	centralized control
	Type of control offered by a controller that is connected by means of Field Level
	Network (FLN).
	cfm
	Cubic Feet per Minute.
	control loop
	PID algorithm that is used to control an output that is based on a setpoint and an input
	reading from a sensor.
	DDC
	Direct Digital Control.
	DO
	Digital Output. Physical output point that sends a two-state signal (ON/OFF,
	OPEN/CLOSED, YES/NO).
	English units
	The foot-pound-second system of units for weights and measurements.
	equipment controller
	FLN device that provides additional point capacity to a field panel or provides individual
	room or mechanical equipment control.
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Siemens Industry, Inc.	BACnet ATEC Owner's Manaul
125-5050, Rev. AA	4/20/2010