sonu i would like to get detail on automatic process controlsystems
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Automated process control system Automatic control systems allow us to operate our processes safely and cost-effectively. Consider, processes with currents composed of gases, liquids, powders, slurries and fuses. Control systems achieve this "safe and cost-effective" goal by continuously measuring process variables such as temperature, pressure, vacuum, flow and concentration - and by taking actions such as opening valves, lowering pumps and raising heaters - all so that variables Measured values are maintained at setpoint values specified by the operator.
Process control is a well-known problem. There have been many attempts to solve it in the history of software. In the era of mainframes, process management was partially delegated to the operating system and the job control language. As a significant tool in this area, it should be mentioned the SDL or Specification and Description Language. SDL is a specification language aimed at the specification and unambiguous description of the behavior of reactive and distributed systems. Originally focused on telecommunication systems, its current application areas include process control and real-time applications in general; However, it requires a very detailed process description and is not suitable for the description of high level business processes. Therefore, the authors introduce a new and simple domain specific language for the control of business processes.