Operator Selection Back Annotation for Persistent HMI Changes
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Solution Overview
Problem
Existing control systems for technical installations restrict user selections to runtime and prevent their relocation between projects, leading to inefficiencies in operator control and monitoring, especially during engineering changes or object relocation.
Innovation Solution
A control system comprising an operator station server and client, and an engineering station server, where the operator station server transfers visualization information to the client for graphical presentation, allowing adjustments to be recorded and transmitted to the engineering station server for persistence and availability across projects, maintaining consistency and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If user selections are restricted to runtime only, then operator control flexibility is improved, but system complexity and maintenance burden increase when objects are relocated or deleted
Solution Approach 1:
The system performs preliminary actions by automatically saving operator adjustments to the graphical presentation to the database before engineering changes occur. This pre-saved state allows the system to restore previous configurations automatically when objects are relocated or deleted, eliminating the need for manual maintenance tracking.
Solution Approach 2:
The system implements feedback mechanisms where the operator station client detects when engineering changes occur (object relocation or deletion) and automatically retrieves the appropriate saved graphical presentation state from the database. This closed-loop feedback ensures consistency without requiring operator intervention or complex maintenance procedures.
2Productivity
If graphical presentation adjustments are not persisted, then system performance is maintained, but operator control optimizations are lost
Solution Approach 1:
The system extracts the adjustment information from the volatile graphical presentation in memory and transfers it to persistent storage in the database. This separation allows the operational system to maintain high performance while the persistent storage preserves optimization information for future use without impacting real-time performance.
Data Source
AI summary
A method for operating a control system of a technical installation, wherein an operator station server transfers visualization information to an operator station client, and the operator station client generates a graphical presentation for an operator via the visualization information, where the method includes adjusting the graphical presentation via the operator station client in response to an instruction of the operator to the operator station client, transmitting the information regarding the adjustment of the graphical presentation to the operator station server via the operator station client, recording the information received from the operator station client regarding the adjustment of the graphical presentation in a memory of the operator station server, transmitting the information regarding the adjustment of the graphical presentation to the engineering station server via the operator station server, and presenting the information regarding the adjustment of the graphical presentation to a project engineer of the technical installation.