Work
I am a Systems Integrator, which involves working with the software that controls industrial equipment, also known as SCADA or ICS. The software package we use at my job is Wonderware which is for Windows only, though recent acquisitions by the manufacturer looks like it will make Linux nodes a possibility too. I don’t do PLC work, as the items I am integrating have never been PLCs. I talk to metering, protective relays, and other devices that the utility company uses. These devices frequently talk over RS-232 or RS-485. For those of you in the 20th century or later, those are serial devices. And not the USB type – the archaic 9 pin connector.