Method and apparatus for operating a programmable logic controller (plc) with decentralized, autonomous sequence control
AssigneeBachmann GmbH
InventorGunnar Vogel
Life of this patent
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Abstract
A method for operating a programmable logic controller (PLC), and a programmable logic controller (PLC) for a processing plant with a central data processing unit and a sequence control that reads in, processes input data from inputs, and outputs the processed output data to outputs. The data processing unit performs only superordinate administrative functions for the administration of downstream input and output modules and is embodied as an ADMIN data processing unit. The sequence control is embodied as a partial application autonomously executing in the input and output modules.
Claims26
A method for operating a programmable logic controller (PLC) for a processing plant having a central data processing unit (CPU), the method comprising:
- reading in and processing input data from inputs and outputting the processed data to outputs by means for a sequence controller;
- performing only superordinate administrative functions by the data processing unit for the administration of downstream input and output modules, the data processing unit being embodied as an ADMIN data processing unit;
- and
- the sequence control, embodied as a partial application, executing autonomously in the input and output modules.
A programmable logic controller (PLC) for a processing plant, the PLC comprising:
- an ADMIN data processing unit;
- a superordinate sequence control that reads in input data, processes input data from the inputs, and outputs the processed data to outputs;
- and
- a decentralized automation system with independently operating input/output modules.
Dependencies are inferred from the claim text.