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PLC platform provides precision temperature control, secure data recording and visualisation

18 February 2014

Invensys Eurotherm has launched a new range of PLC products, with the aim of increasing the profitability and efficiency of heat treatment and thermal processing.  

Traditionally, to obtain optimum performance and meet accurate pyrometry specifications it would be necessary to purchase separate products for temperature control, data recording and visualisation, which can be costly and inefficient.  E+PLC combines these products into a single easy to use, flexible and highly functioning precision PLC platform. It also targets operational efficiency and makes regulatory compliance much easier, says the company.

Tim Linnell, product portfolio manager at Invensys Eurotherm explains further: “For many companies, in an increasingly competitive global environment, the efficiency of thermal treatments will be the difference between being profitable and not.  Eurotherm’s fast reacting PID control minimises overshoot, improving accuracy and reducing waste. The high precision temperature control ensures the correct temperature is obtained quicker and stays at the optimum level required without deviation, ensuring high quality results first time without wasting time waiting for operating temperature to be reached. This increases throughput of a furnace or thermal treating machine in comparison with traditional PLC based control. Fast acting PID with overshoot inhibition can enable an extra furnace batch cycle to be completed within any 24-hour period. By eliminating damping of PID sets and relying on Eurotherm’s - overshoot inhibition, customers can heat aggressively up to temperature with the confidence of keeping within the required setpoint temperature tolerances.

“These benefits can be realised in the E+PLC using standard software building blocks, with an auto-tuning function to match the control response to a particular application. This can reduce the time needed to programme and commission an application from days (and sometimes weeks) to hours.

“The E+PLC range also includes secure data logging, designed to meet the requirements of thermal treatment standards such as CQI-9 and AMS2750 E. 

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