The PuffinPLC Project is an effort to produce a Linux-based GNU Public Licensed Programmable Logic Controller (PLC). PLCs were developed in the 1960s to replace the complex electrical relay circuits ...

Debugging and analysis of PLC ... runs on a sequence CPU module. This improves work efficiency by enabling engineers to monitor a program's execution status while they collect the program execution ...

The CS series of process control modules give you PID loop control of any process without using a PLC. A variety of modules are offered that allow control of temperature, flow, and pressure; the ...