Your so controlling
A device that revives signal from a sensor, compares it to a set point value and sends appropriate output signal to a controlled device
What is a Controller?
A control in which feedback occurs between the controller, sensor and controlled device.
What is a closed loop control?
A decreasing of a controlled variable below the controller setpoint
What is Undershooting?
Used to reduce undershooting/overshooting.
What is an Anticipator?
An arrangement of a system, controller and controlled device to maintain a specific controlled variable in a building, space, pipe or duct.
What is a controlled system
May be refereed to as a two position control, Its either on or off, open or closed.
What is an On/Off Control?
A value to be maintained either at above or below depending on the control scheme.
What is Controller Setpoint?
The desired value to be maintained by a system
What is Setpoint?
A device that measures a controlled variable and sends a signal to a controller
What is a Sensor?
A system that uses microprocessors to control the energy using devices in a building.
What is a BAS
Uses a control signal that is between two valves.
What is an Analog Control
The actual value that a control system experiences at any given time.
What is Control point?
The measurement of the results of a controller action by a sensor or a switch.
What is feedback?
A supervisory controller which coordinates communication from controller to controller
What is a network communication module
A system in which the decision making is centrally located in one place and the system enables/disables local controllers. this is the oldest form of BAS.
What is a central supervisory control system
it is a device designed for basic zone control and using a standard wall sensor
What is a unitary controller?
A loop in which no feedback occurs between the controller, sensor and controlled device.
What is a Open Control Loop?
The increasing of a controlled variable above the controller setpoint.
What is overshooting?
An electronic device that follows commands sent to it by the main controller o a central direct digital control system, also known as a data gathering panel.
what is a Field Interface Device
a control system in which all control decisions are made in one location which provides closed loop control
What is a Central Direction Digital Control system?
A Controller that is designed to control only one type of equipment or one type of process. Software is specific to the control functions being performed.
What is an Application specific controller (ASC)
The item which regulates the fluid flow in a system.
What is a controlled device?
The fluid that flows through a controlled device.
What is a Control Agent?
A network communications module that coordinates between controllers on a network that uses a standard web browser
What is a Web Based Interface Module
A control system that utilizes multiple computers at the controller level that have complete decision making control. This is the most modern control system.
What is a Distributed Direction Digital control system