Description
The experimental device is a combination of digital regulator and analog instrument.The analog instrument transmits information at 4 ~ 20mA;SIEMENS digital regulator can be used as logic operation and modulo/digital conversion adjustment operation. Digital information can be transmitted to the upper bit machine.The whole system adopts closed-loop regulation, which can directly control the quality.The control cabinet is equipped with flow indicator and liquid level indicator, which can directly monitor the working condition of the system.
The experimental system has the function of upper computer monitoring system, which can carry out remote monitoring such as monitoring and control, so that the operator can carry out remote monitoring without being close to the control object.It also has data acquisition and data management functions, dynamic data exchange functions, online and historical trend charts and automatic event recording functions.
In short, this system is a new set of typical applications of digital instruments, which is corresponding to the traditional simulation. Its core part is SIEMENS digital regulator, which is more reliable, efficient, simple and universal than analog instruments. Its outstanding advantages are reflected in the characteristics of digitization and easy communication.In addition, the system is equipped with digital/light column display instrument, digital flow display instrument and so on, basically realize the digitization of the whole system.In addition, this system has the remote communication function, may realize the remote monitoring, conforms to the modern industrial control information, the digital trend.
