What is level 3 automation ?

Dear all ,

i want to know about level 3 automation .

please tell me about level 3 automation.

regards,
souvik

Does this help?

Purdue Model for Control Hierarchy (5-Level Model)


Level 0 Sensor Level (Measuring Devices):
Pressure, Temperature, Speed, Accelerometer, Force, Position, Shape, Thickness, ...

Level 1 Controller Level (Feed-back Closed Loop Control):
Speed Regulator, Tension Regulator, Sequence Control, Position Control, Temperature Control, SCADA

Level 2 Machine Level (Set-up Models):
Temperature model (e.g., EAF, LMF), Shape Control, Mill Set-Up Control, Coil Tracking, Runout Table Cooling Control, ..

Level 3 Operation Unit Level:
Blast Furnace, Electric Arc Furnace, LMF, Caster, Reheating, Hot Mill, Cold Mill, Anneal Line, Pickle Line, ...

Level 4 Plant Level MES, MRP:
Scheduling, Material Flow, Manufacturing Execution System (MES)...

Level 5 Corporate Level CRM, TMS, ERP:
Order Process, Enterprise Resource Planning (ERP)...

Or maybe this, another view of the above.

http://www.google.com/url?sa=t&rct=...mqCtCw&usg=AFQjCNFUCvTOcdFUAWCpjwLM8OlgGnPGpw