Tech Insights

Direct Digital Control (DDC)

Last updated May 17, 2025, generated by Sumble

What is Direct Digital Control (DDC)?

Direct Digital Control (DDC) is an automated control system where control loops are digitally implemented. In building automation, DDC systems are commonly used to control heating, ventilation, and air conditioning (HVAC) systems, lighting, and other building systems. DDC systems use microprocessors to directly control the operation of equipment based on sensor readings and programmed setpoints.

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What other technologies are related to Direct Digital Control (DDC)?

Direct Digital Control (DDC) Competitor Technologies

LON

LON is a building automation protocol that competes with BACnet for DDC systems.

mentioned alongside Direct Digital Control (DDC) in 5% (184) of relevant job posts

Johnson Controls Metasys

Johnson Controls Metasys is a building automation system that often competes with other DDC-based systems.

mentioned alongside Direct Digital Control (DDC) in 7% (64) of relevant job posts

N2 is a proprietary communication protocol from Johnson Controls that historically competed with open protocols in DDC.

mentioned alongside Direct Digital Control (DDC) in 4% (73) of relevant job posts

Direct Digital Control (DDC) Complementary Technologies

Central Control Panel

A central control panel benefits from the data that DDC provides from all around a controlled system.

mentioned alongside Direct Digital Control (DDC) in 100% (86) of relevant job posts

Electric Duct Heaters

Electric duct heaters are components that can be controlled by DDC.

mentioned alongside Direct Digital Control (DDC) in 88% (84) of relevant job posts

Building Management (EMS & BMS)

Building Management Systems use DDC as a core technology for control and monitoring.

mentioned alongside Direct Digital Control (DDC) in 100% (62) of relevant job posts

Which job functions mention Direct Digital Control (DDC)?

Job function

Jobs mentioning Direct Digital Control (DDC)

Orgs mentioning Direct Digital Control (DDC)

Construction

Electrician

Facilities

Systems Engineer

Mechanical Engineer

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