Control system of a technical installation
AssigneeSiemens Aktiengesellschaft
InventorsAlexej Gerstmaier, Eberhard Schlarb, Guido Steinhauer
Life of this patent
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Abstract
A control system of a technical installation including at least one field device which makes available at least two redundant protocol values that are converted by the control system into a single non-redundant functional value is provided. The control system is provided with at least two redundant communication channels for converting the at least two redundant protocol values, the channels controlling the respective protocol value with respect to its exactitude and transmitting an exact protocol value.
Claims16
A control system of a technical installation, comprising:
- a field device configured to provide two redundant protocol values;
- and
- two redundant communication channels for converting the two redundant protocol values into a single non-redundant functional value,
- wherein each communication channel comprises assessment logic and function logic,
- wherein each assessment logic assesses one of the two redundant protocol values with respect to a correctness of the redundant protocol value,
- wherein a correct redundant protocol value is transmitted to the function logic of the respective communication channel, wherein two correct redundant protocol values are converted into the single non-redundant functional value.
A method of operating a control system of a technical installation, comprising:
- providing two redundant protocol values by a field device;
- providing two redundant communication channels, wherein each communication channel comprises assessment logic and function logic;
- assessing, by the assessment logics, the two redundant protocol values whether the protocol values are correct;
- transmitting correct redundant protocol values from the assessment logics to the function logics;
- and
- converting the correct redundant protocol values into a single non-redundant functional value by the function logic.
Dependencies are inferred from the claim text.