Bus Address Assignment for Multi-Starter Control Networks
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Solution Overview
Problem
In scenarios with a large number of motor starters, allocating communication addresses and adapting communication protocols becomes a challenge, leading to increased system costs and reduced communication timeliness.
Innovation Solution
A control device comprising multiple connection units, bus units, and a gateway, where each bus unit obtains a bus address by converting its connected connection unit's location identification, and the gateway performs information exchange with the controller based on these addresses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual configuration of bus addresses and communication protocols is performed for each motor starter, then communication reliability is ensured, but the time and complexity of system setup and maintenance increases significantly
Solution Approach 1:
The bus unit automatically obtains its bus address by reading the location identification from the connection unit and performing conversion, eliminating the need for manual configuration. This self-service mechanism ensures communication reliability through automated address assignment while dramatically reducing configuration time and human intervention requirements.
Solution Approach 2:
The connection unit pre-stores location identification information that corresponds to its physical position in the system. When a bus unit connects to the connection unit, the address information is already prepared and immediately accessible, eliminating the need for time-consuming manual address allocation during system setup or maintenance operations.
2Reliability
If manual allocation of communication addresses is performed for a large number of motor starters, then communication address uniqueness is ensured, but the complexity of address management and system maintenance increases
Solution Approach 1:
Each bus unit automatically obtains its unique bus address by reading the location identification from its connected connection unit and performing conversion. This eliminates the need for manual address allocation and management, reducing complexity while ensuring uniqueness through the inherent one-to-one correspondence between connection units and bus units.
Solution Approach 2:
The connection unit acts as an intermediary that stores location identification information and provides it to connected bus units. This intermediary mechanism simplifies address management by centralizing the address information source in the connection unit, which automatically manages the mapping between physical positions and communication addresses.
3Adaptability or versatility
If traditional communication address allocation methods are used, then communication protocol compatibility is achieved, but communication timeliness deteriorates due to high data throughput requirements
Solution Approach 1:
The automated address acquisition process eliminates manual configuration delays, enabling bus units to immediately participate in communication after connection. This self-service mechanism reduces the time required for system setup and ensures communication timeliness by eliminating human intervention bottlenecks while maintaining protocol compatibility through standardized address conversion processes.
Data Source
AI summary
Embodiments of the disclosure disclose a control device, control method and storage medium. The control device includes: a plurality of connection units respectively connected to a bus in the control device; one or more bus units, wherein each of the one or more bus units is configured to, in response to being connected to a connection unit of the plurality of connection units, obtain a bus address for the bus and corresponding to the connection unit; and a gateway connected to the bus and adapted to communicate with a controller, and the gateway configured to perform information exchange between the controller and the one or more bus units based on the respective bus addresses of the one or more bus units.