Reconfigurable Motor Control Communication for PLC Protocol Switching
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Solution Overview
Problem
Existing motor control devices require pre-setting of a specific communication system matching the master device's specification, limiting their versatility and complicating inventory management and device configuration.
Innovation Solution
A motor control device equipped with a network communication unit featuring a reconfigurable device, allowing the communication system to be changed by reconfiguring the device. This is facilitated by a setting communication unit that receives communication system information via a different communication path, enabling the device to adapt to various master device specifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a specific communication system is pre-set in the motor control device to match the master device's specification, then communication reliability is improved, but device versatility and ease of configuration deteriorate
Solution Approach 1:
The motor control device employs a reconfigurable communication unit that can dynamically change its communication system configuration based on received settings. The device transitions from a static, pre-configured state to a dynamic, adaptable state where the communication protocol and parameters can be modified to match different master devices, thereby achieving both reliability for the current connection and versatility for future connections.
Solution Approach 2:
The invention changes the communication parameters (protocol type, data format, transmission rate) of the motor control device based on received configuration information. By allowing parameter modification after manufacturing, the device can adapt to different master device specifications without requiring multiple pre-configured hardware variants, thus improving versatility while maintaining reliable communication through proper parameter matching.
2Adaptability or versatility
If multiple pre-configured motor control devices with different communication systems are maintained, then adaptability to various master devices is improved, but inventory complexity and device complexity increase
Solution Approach 1:
The motor control device is designed with a universal communication unit that can perform multiple communication functions through reconfiguration. Instead of requiring separate devices for different communication protocols (CAN, Ethernet, Serial), a single device can be configured to support multiple protocols, thereby reducing inventory complexity while maintaining adaptability to various master devices.
Solution Approach 2:
The device incorporates dynamic reconfiguration capability that allows it to adapt its communication interface on demand. This eliminates the need for maintaining multiple static, pre-configured device variants in inventory, as one dynamic device can replace several static devices with different fixed configurations.
3Adaptability or versatility
If the communication system is changed by reconfiguring the reconfigurable device, then communication system flexibility is improved, but device complexity increases
Solution Approach 1:
The motor control device incorporates automated configuration capabilities where the device can self-configure its communication parameters based on received configuration data. The reconfiguration process is facilitated by integrated control logic that automatically adjusts communication settings without requiring complex manual intervention, thereby reducing configuration complexity while maintaining flexibility.
Solution Approach 2:
The invention introduces a configuration interface or intermediary mechanism that simplifies the reconfiguration process. This intermediary layer manages the complexity of switching between different communication systems by providing a standardized method for receiving configuration commands and translating them into appropriate device settings, thereby reducing the apparent complexity for users while enabling flexible communication system changes.
Data Source
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AI summary
In this motor control device, a communication system for communicating with a master device is easily changed. A slave device (90) is provided with: a network communication unit (120) that communicates with a PLC (100) via a communication network; and a setting communication unit (140) that receives communication system information of the network communication unit via a communication path different from the communication network. The network communication unit includes a reconfigurable device and can change a communication system by reconfiguring the reconfigurable device. When the setting communication unit receives the communication system information, the slave device reconfigures the reconfigurable device in accordance with the communication system information.