Designing of PLC control systems are articulated in the following phases:

- PLC programming using products of highest quality.
- Operator interface program development.
- Fully documented ladder and logic programs.
- Modular programming methodology.
- PID control programming and tuning.
- Dial-up support program.
- Industrial network communication design and implementation
(Ethernet, ControlNet, DeviceNet, DH+, DH485, DF1, Modbus, Modbus Plus, Profibus).

By simulating sensors/actuators and bus signals, a complete loop check of the adopted system during Factory Acceptance Testing (FAT)is performed.