This PLC introduces the “C” programming language to their systems, but it does not have the built in system commands or the powerful relay ladder logic system that the other Comfile PLC modules have.
Then we had the idea of creating CSV (comma separated values) files that we could place on the Flash drive of the CUWIN enabling us to use these files for the logic we needed to control a process. We broke these files into: Buttons, Points, and a Ladder. Since the CUWIN does have a flash drive we could use the CUWIN to sort of host these files while the Moacon would request them from the CUWIN.
So much like the days of DOS, we developed a boot loader that request these files from the CUWIN, which are then sent to the Moacon via the serial port. And the Moacon has the ability to reset the CUWIN HMI (upon boot up). The two files loaded onto the Moacon and used to control the process are: Points and Ladder (logic) CSV files. Once the Moacon has these files loaded into its memory, it is then able, again based on the Points and Ladder, to process the inputs and outputs (or Points) without further “C” programing.
In this system the CUWIN is stationary, performs no logic processing related to the system or process were controlling, yet it displays the status of the process and enables the end user to control it via touch screen buttons and simple indicators. (see attached photo)
The Moacon is capable of multiple and expanded inputs and outputs however, there is no system in place for it to do anymore than an Arduino!
Post a message to us on this message board if you are interested in our system and saving hundreds of hours of development time.
Its in use today controlling the process of a waste oil treatment plant in the Virgin Islands.
- Screen shot of the CUWIN HMI:
- CUWIN HMI Buttons.jpg (89.88 KiB) Viewed 2245 times
Moacon.pdf- A detailed description of the system:
- (1.34 MiB) Downloaded 784 times