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Direct Digital Controls
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Direct Digital Controls (DDC) are controllers used to control all building systems. DDC's are used mostly in commercial buildings for systems such as heating, ventilation and air conditioning as well as lighting and sprinklers.
Examples:
Heat Recovery and Process Cooling
Warehouse Heat Recovery and Air Conditioning
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Programmable Logic Controllers
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Programmable Logic Controllers (PLC) are devices that can be programmed to react to input signals. Normally, PLC performs on-off control but is capable of manipulating outputs in numerous ways including: how they react to inputs, creating timers and counters or doing complex mathematical functions.
Examples:
Process Schedule Heat Recovery & Cooling
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