Processors have generally accepted that to be able to manage and optimize any process one must understand the process at the most fundamental levels. Systems are becoming easier to implement and use with the introduction of more advances, such as advanced user interfaces, and wireless transducers and transmitters. The 16-bit and 32-bit systems provide more speed, more data storage, and more complex control algorithms. Process monitoring and control technology have continued to develop, with better utilization of computer hardware and software to provide improved ease of use and reliability. Mark Berry, Nick Schott, in Applied Plastics Engineering Handbook (Second Edition), 2017 17.2.4 Early 21st Century: More Powerful Computers More Technical Approach to Processing Advanced user interface and wireless technologies are frequently being adapted to boost efficiency of process monitoring. With innovation in process monitoring technologies the systems are becoming easier to integrate.
Microprocessor-based systems have continued to develop with better utilization of computers and software resulting in increased reliability.
The corrective actions are based on the algorithms that are been developed for that process. Closed-loop systems are generally a combination of hardware and software that carry out the manufacturing process and provide for automatic adjustment of process parameters that go out of range. Virtually all barrel temperatures controls are closed-loop systems. Based on the actual measured output, the controller then takes corrective actions to achieve the set point or the target. 5.27, a direct feedback is sent to the controller. Īlthough open-loop systems are used in some cases, more robust closed-loop systems are widely used in almost all plastic processing equipment. Schematic illustration of closed-loop process control system.
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