Project Examples

HMI for a complex wastewater process with dynamic graphics and hidden buttons under each process device for pop-up screens for setpoints and controls. This touch screen is interfacing with a Rockwell ControlLogix PLC.

During this project, the customer wanted to trigger an ISCO sampler to draw samples based on levels of an instrument that is outputting an analog signal. I assisted with programming their sampler for a 24 bottle carousel and the ability to be triggered by a PLC digital output. I wrote a PLC program, in their existing Rockwell ControlLogix PLC, that scales the signal from the instrument, then triggers sampling based on high/low setpoints. They wanted the ability to know what type of sample was taken and what time/date each sample was take, the ability to change sampling setpoints, and the ability to change the amount of time between samples. I developed new screens in their existing Automation Direct C-More HMI that interfaces with my program in the ControlLogix.