There are many applications


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Direct digital control usually refers to a system in which a digital device such as a computer automatically controls certain processes based on certain conditions. There are many applications for direct digital control, many of which are related to building automation or HVAC systems. In general, these types of systems include multiple components controlled from a central location.

To carry out any task the system has been created to maintain, it may rely on the collection and processing of data before changing conditions or attempting to meet certain specifications. For example, a direct digital control system intended to monitor and maintain a certain temperature and air pressure inside a building can monitor various factors.

If the temperature drops below acceptable levels, direct digital control systems can make the necessary adjustments, whether those adjustments involve turning on multiple radiators or encouraging air circulation by activating a series of fans and ducts. ‘air.

Many security systems can also benefit from the technologies offered by direct digital control. For example, a safety instrumented system could monitor the wellhead pressure of an oil well and take action if that well pressure exceeds what is considered safe.

This type of application shows the advantage of this type of control, because a system built to monitor safety may be able to detect malfunctions long before human intervention is possible. Just like industrial control systems, this type of control can be essential for high-risk jobs such as drilling and oil extraction.

One of the most common applications for direct digital control is in HVAC systems. These systems enter the sometimes complex settings needed to heat an entire building or an entire building complex using a single source of energy based on relatively simple user input.

For example, you can type the desired room temperature into a thermostat and have the direct digital control system hold that temperature almost indefinitely. As computers and processing technology improve, the possibilities for many of these systems can also improve.


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