Historically, PLCs were used for discrete control applications, but today’s powerful PLCs have greatly expanded capabilities, particularly in the area of analog monitoring and closed loop control. These capabilities are provided in compact and low cost controllers featuring ease-of-use and a high degree of connectivity. For complex temperature control applications with different heating or cooling profiles, PLC-based control offers a versatile, powerful and cost-effective solution.

When paired with a touch screen HMI, additional process data can be viewed and analyzed, with adjustments to improve operations easily entered through the touch screen.