Strategic Data Exchange layer
Target
Strategic decision support
Information exchange
Elements Reporting
Trends and fluctuations
Data tracing
History analyses
Connection typeEthernet
Technology typeSoftware
Human InterferenceManagers |
| |
SCADA Layer
Target
Process and trend analysis
Elements
Operating & engineering stations
Printers
Archiving drives
Software
message alarms
real-time production data Monitors
trends
production analysis
plant-wide reporting
Connection typeEthernet, profibus
Human Interference
Production Engineers |
|
| |
Control Layer
Target
Sequencing and functions
Elements
PLC (Programming Logic
Controllers)
Industrial Computers
Software application to control production sequence and functions.
Connection type
Network and communication sublayer to facilitate data exchange among PLCs and computers:
Profibus, Modbus, Ethernet.
Technology type
Hardware and software
Human Interference
Senior technicians and engineers |
|
| |
Process Layer
Target
Process variables measurement
Sensing and signals
Elements
Sensors
Intelligent sensors
Actuators as motors, valves,
push buttons...
Drives, motion control devices
and others
Connection type
Actuator sensor network e.g.
ASI (actuator sensor interface)
0-10V / 4-20mA and field bus
Technology type
Hardware
Human Interference
Technicians |
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