Automation Controller Display with USB Port Adapter
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Solution Overview
Problem
The inefficiency in switching between using a display and a personal computer to operate an automation controller, especially when the controller is housed in a protective enclosure, requires users to open the enclosure door to connect cables, leading to reduced productivity and inconvenience.
Innovation Solution
A display device with an interface switch that detects physical connections and communication traffic, allowing it to switch between display functionality and USB adapter functionality, enabling users to connect a PC to the automation controller without opening the enclosure door by using a USB port embedded on the display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a USB port is embedded on the display device for PC connection, then user productivity is improved by allowing access without opening the enclosure, but the device complexity increases due to additional ports and switching mechanisms
Solution Approach 1:
The display device is designed to perform multiple functions: it serves as both a display interface and a communication adapter. The USB port embedded on the display enables the device to function as a USB-to-serial adapter, allowing PC connection without opening the enclosure. This multi-functionality resolves the contradiction by consolidating display and communication functions into a single device.
Solution Approach 2:
An interface switch is introduced as an intermediary component that automatically detects whether a USB device is connected and routes communication accordingly. When a USB device is detected, the switch enables adapter functionality; otherwise, it maintains display functionality. This intermediary element manages the complexity automatically, improving productivity while containing device complexity through automated switching.
2Adaptability or versatility
If multiple communication ports are provided on the automation controller, then adaptability is improved by allowing simultaneous display and PC access, but the manufacturing cost increases
Solution Approach 1:
The display device and communication adapter functions are merged into a single integrated unit. Instead of providing separate ports on the automation controller, the system combines the display interface and USB adapter capability in one device. This merging maintains adaptability by allowing both display and PC access while reducing manufacturing costs by eliminating redundant ports and components on the controller.
Solution Approach 2:
The display device is designed with universal functionality to serve both as a display interface and as a communication adapter. This multi-functionality allows the system to achieve adaptability (supporting both display and PC connections) without adding multiple separate ports to the automation controller, thereby avoiding increased manufacturing costs.
3Reliability
If the enclosure door must be opened to connect PC to automation controller, then device security is improved by protecting internal components, but the ease of operation deteriorates
Solution Approach 1:
The display device acts as an intermediary that provides external access to the automation controller without requiring opening the enclosure. The USB port on the display and the interface switch enable PC communication through the closed enclosure, maintaining device security while dramatically improving ease of operation.
Solution Approach 2:
The system is segmented into two functional parts: the sealed automation controller enclosure that maintains security, and the display device that provides external access points. By separating the access function from the controller enclosure and placing it on the display device, the system maintains reliability through enclosure protection while improving ease of operation through external accessibility.
Data Source
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AI summary
A display device for an automation controller includes a communication interface port, such as a universal serial bus (USB) port, which is installed in the display device so that it may be easily accessible by a user. The USB port may be used to connect a PC to the automation controller. The display device also includes an interface switch that performs display functionality or port adapter functionality based upon whether a port connection and/or port communication traffic are detected. Thus, the display device acts as both a text display and as a gateway to configure the automation controller with a personal computer (PC) through the use of the USB port.