The Sentinel-C series of turbine control systems was designed specifically for
the retrofit of heavy-duty gas turbine controls; in particular, Speedtronic and
LA families of turbine controllers.
The control system was originally developed utilizing the robust Allen-Bradley
PLC-5 family of processors, and has since been upgraded using the latest Allen-Bradley
PLC, ControlLogix. This gives sentinel systems greater flexibility and faster
response time overall. Both processors perform sequential logic and closed-loop
control functions, which are necessary for gas turbine control.