In the world of PLC programming, there are a few common languages and standards used for feedback control systems. You've got your classic ladder logic, which looks like old-school circuit diagrams.

Historically, building a control system software application involved developing algorithms and data structures that solved a specific problem. The problem could be solved in a series of steps (or ...

Let's quickly review the four-level architecture found in most modern building control systems (click here to see Figure). Starting from the bottom, at the sensor/actuator level, present control ...

The control systems we use in commercial buildings today have evolved over the last 30 years to provide systems that are cost effective, and provide good performance. Beginning in the 1980s, building ...

Control system programmers tend to get more involved in the signal flow, functionality of the AV system, troubleshooting systems, and the user interaction with the technology. Software developers tend ...

Many control technologies claim to be “open,” but only the BACnet standard and the LonWorks technology have gained wide use in building automation systems. Let's look at the two control concepts and ...

On Thursday, Fazio released a statement saying it does not monitor or control Target’s HVAC systems, according to KrebsonSecurity. Instead it remotely handles “electronic billing, contract ...

The Johnson Controls P2000 Security Management System features numerous integration options with other Johnson Control products like the Metasys Building Control System to create powerful total ...