what is the meaning of dcs?
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I would say that you are not looking for that it is Distributed control system
i would say that the main difference between the PLC+SCADA system and the DCS it mainly the data base .
in the PLC you have two separate data base one for the PLC and the other for the SCADA and you do connecting between them through your communication system and the tag configuration
in the DCS it different since it is only one common data base , that mean any change in the application logic shall effect in the data base which shall effect in the HMI and vice versa
that is in Avery very brief description
Hi, try to check next link (and discussion on LinkedIn):
- control system application layer
- control system HW level
- control system engineering
- integration / communication on HW level
- integration to other system (CMMS, EAS, AMS, EMS etc.)