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If your job involves work within, or you are considering a career related to, modern industrial facilities, the odds are that you have come across the term Instrument Control Loop. This term defines a common and important aspect of modern industrial facilities. For evidence of just how important knowledge of it is, drop the term “Instrument Control Loop” into LinkedIn’s job search engine and glance over the list of job titles that pops up. Some Read more…

The operation of a PLC is very simple. The processor makes decisions based on a ladder logic program written by the user. In order to use the program properly, the PLC must communicate with the various field devices it is tasked with monitoring and controlling. It then compares the actual conditions of the field devices with what the program instructs them to do, and updates the output devices accordingly. Read more…

A PID controller combines the proportional response to a change while eliminating the offset error.  It anticipates changes by measuring the initial rate of change for accurate control. Setting up a PID controller or tuning to a process loop is a little more involved than simpler controllers.

Proportional plus reset plus rate controllers combine proportional control actions with integral and derivative actions. Read more…

There is a high demand for qualified Automatic Control Systems Engineers in industry.  Say that there is no automatic control, then there will be no heating or air-conditioning in the way that we have become used to; whereas certain temperature and humidity levels are maintained. Refrigerators and stoves would not be able to regulate their operation. Automatic control systems can also be found industrially in numerous applications, Read more…

Control systems are all around us. When we drive a car, take milk out of the refrigerator, or turn on the heat, we are using automatic control systems. Technicians who can troubleshoot and repair these systems are in high demand.

Control System Monitoring

Principles of Control Systems

Control systems integrate elements whose function is to maintain a process variable at a desired value or within a desired range of values. Read more…

Process Control Technicians are in high demand in industry.  As automation continues to advance our capabilities, it also increases the difficulty of maintaining the system.  Understanding the complex systems in Read more…

Process Control Fundamentals

Process Control

In almost all industrial process applications, control of process variables is critical to the safe and efficient operation of the process. The most common variables controlled are pressure, level, temperature, and flow. Even though there are many different methods used to control these processes, this monitoring and control is generically called process control. Level, pressure, temperature, and flow are all controlled in a Read more…