Distributed Access Control Unit for Remote Setting Backup
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Solution Overview
Problem
Existing control systems require users to physically access the CPU unit for accessing and backing up setting information, limiting flexibility in where the operation can be performed.
Innovation Solution
A control system that allows users to perform access processes for loading and reading setting information through a first functional unit, which can be reconfigured to operate independently of the CPU unit's installation location, enabling flexible selection of storage units and execution targets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the access process for restoring or backing up setting information is performed through the CPU unit, then the process can be executed, but the user must physically go to the CPU unit's installation location, reducing operational flexibility
Solution Approach 1:
The patent segments the control system into multiple functional units (CPU unit, IO units, and a dedicated access process execution unit). The access process functionality is separated from the CPU unit and can be executed by any functional unit that receives an access process execution instruction, allowing users to perform operations at any location within the networked system rather than being constrained to the CPU unit's physical location.
Solution Approach 2:
The patent implements multi-functionality by enabling any functional unit in the control system to execute the access process for restoring or backing up setting information. The functional unit that receives the execution instruction can universally perform the access process regardless of whether it is the CPU unit or an IO unit, making the system more flexible and adaptable to different operational scenarios.
2Adaptability or versatility
If the CPU unit is installed at a fixed location for control operations, then system stability is maintained, but the location for executing access processes is constrained
Solution Approach 1:
The patent introduces dynamic flexibility by allowing the execution location of access processes to change based on system configuration and operational needs. While the CPU unit maintains its fixed installation for control functions, the ability to execute access processes dynamically shifts to any functional unit that receives the execution instruction, providing adaptability without compromising the CPU unit's stable control role.
3Adaptability or versatility
If multiple IO units are connected remotely to the CPU unit, then system versatility is improved, but the ability to perform access processes remotely is limited
Solution Approach 1:
The patent uses the networked functional units as intermediaries that can receive and execute access process instructions. When an IO unit receives an access process execution instruction, it acts as an intermediary to perform the restore or backup operations, eliminating the need for users to physically access the CPU unit's location and enabling remote execution of access processes throughout the distributed system.
Data Source
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AI summary
A control system (1) and a functional unit (300) are capable of freely setting a place at which an operation for executing an access process is performed independently of an installation place of a controller (100). A CPU unit capable of communicating with a storage unit (400), and a plurality of functional units (2) communicatively connected to the CPU unit are included. The functional unit (300) includes an input unit including a switch that receives a user operation. The input unit generates a command (D60) for executing an access process when an input portion (30) receives execution of the access process for accessing the storage unit (400) from an IO unit. A designated IO unit executes the access process.