Continued from the previous post
In practice, all these process controllers incorporate a microcontroller.
But microcontrollers are programmed in assembly or in C language, so to create a function block programmable process controller from a C programmable microcontroller, an intermediate firmware must be written.
Continue reading Internal workings of process controllers II.
This time the internal workings of a process controller will be shown.
I’ll show it through a Siemens SIPART DR24 process controller.
Its user manual can be found on the Siemens’ website:
Siemens SIPART DR24 manual
Although it is almost obsolete, the operational principles can easily be demonstrated with it.
Continue reading Internal workings of process controllers I.