Update for an automation installation in the course of operation
First Claim
1. A method for stipulating a starting time for an update for a control apparatus, said control apparatus controlling at least one peripheral component in a process automation installation, said method comprising:
- producing a control output, said update requiring at least a predetermined downtime;
detecting a current operating state for at least one peripheral component;
using the detected operating state as a basis for a controlled system model of a process, said controlled system model simulating what state trajectory the at least one peripheral component runs through within the downtime for a predetermined stationary control output;
checking to determine whether the state trajectory is within a range of permissible operating states, wherein the range of permissible operating states includes operating states which the process and/or the at least one peripheral component has a permissible operating value; and
starting the update only when the state trajectory is entirely within the range of permissible operating states for the downtime.
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Accused Products
Abstract
A method for stipulating a starting time for an update for a control apparatus that controls at least one peripheral component in a process automation installation by producing control outputs is disclosed. The update requires at least one predetermined down time. The invention is based on a suitable starting time for performing an update in order to perform an update in the course of operation of a process automation installation without risk. The method involves detecting a current operating state for the at least one peripheral component, taking the detected operating state as a basis for using a controlled system model of the process to simulate what state trajectory the at least one peripheral component negotiates within the down time for a predetermined static control output, and checking whether the state trajectory lies exclusively within a range of admissible operating states, and, if appropriate, starting the update.
10 Citations
14 Claims
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1. A method for stipulating a starting time for an update for a control apparatus, said control apparatus controlling at least one peripheral component in a process automation installation, said method comprising:
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producing a control output, said update requiring at least a predetermined downtime; detecting a current operating state for at least one peripheral component; using the detected operating state as a basis for a controlled system model of a process, said controlled system model simulating what state trajectory the at least one peripheral component runs through within the downtime for a predetermined stationary control output; checking to determine whether the state trajectory is within a range of permissible operating states, wherein the range of permissible operating states includes operating states which the process and/or the at least one peripheral component has a permissible operating value; and starting the update only when the state trajectory is entirely within the range of permissible operating states for the downtime. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A control apparatus for a process automation installation, said control apparatus stipulating a starting time for an update and being configured to:
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produce a control output, said update requiring at least a predetermined downtime; detect a current operating state for at least one peripheral component; use the detected operating state as a basis for a controlled system model of a process, said controlled system model simulating what state trajectory the at least one peripheral component runs through within the downtime for a predetermined stationary control output; check to determine whether the state trajectory is within a range of permissible operating states, wherein the range of permissible operating states includes operating states which the process and/or the at least one peripheral component has a permissible operating value; and start the update only when the state trajectory is entirely within the range of permissible operating states for the downtime. - View Dependent Claims (12)
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13. A process automation installation having at least one peripheral component and a control apparatus, said control apparatus stipulating a starting time for an update, said process automation installation comprising:
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at least one peripheral component; and a first control apparatus configured to; produce a control output, said update requiring at least a predetermined downtime; detect a current operating state for at least one peripheral component; use the detected operating state as a basis for a controlled system model of a process, said controlled system model simulating what state trajectory the at least one peripheral component runs through within the downtime for a predetermined stationary control output; check to determine whether the state trajectory is within a range of permissible operating states, wherein the range of permissible operating states includes operating states which the process and/or the at least one peripheral component has a permissible operating value; and start the update only when the state trajectory is entirely within the range of permissible operating states for the downtime. - View Dependent Claims (14)
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Specification