Edge I/O Module enables distributed local edge control, performing data acquisition and logic processing directly at the site while uploading results to the central system.
Case Details
Project Background
In traditional automation systems, PLCs usually act as the central controller. All field signals and logic operations are transmitted to the central PLC, which then issues control commands. However, in scenarios such as workshop zoning control, remote pump stations, and wind farm substations, this centralized architecture often faces the following challenges:
- Communication delays result in slower response.
- Single point of failure: central PLC malfunction may affect the whole system.
- High costs for expansion and maintenance.
To overcome these issues, the Edge I/O Module enables distributed local edge control, performing data acquisition and logic processing directly at the site while uploading results to the central system. This ensures unified system management and fast, independent local operation.
Applicable Scenarios
- Workshop Zoning Control – Each production zone equipped with one Edge I/O module for local temperature monitoring and fan control, avoiding central PLC bottlenecks.
- Remote Substation Processing – At pump stations or water plants, the Edge I/O module locally controls pumps based on pressure and flow, without relying on central commands.
- Wind Farm Substation Monitoring – Each turbine equipped with an Edge I/O module for temperature and speed monitoring, enabling local shutdown protection and remote data reporting.
Typical Use Cases
1. Workshop Zoning Temperature Control
- Configuration: One Edge I/O module per zone; AI for temperature sensor input, DO for fan control.
- Logic: Temperature exceeds threshold → fan automatically starts; temperature drops → fan stops.
- Result: Autonomous control in each zone, with data uploaded to the central system.
2. Remote Pump Station Local Control
- Configuration: Edge I/O module connected to pressure sensor (AI), water flow sensor (DI counting), and pump (DO).
- Logic: Low pressure → pump automatically starts; pressure restored → pump stops.
- Result: Instant local response without central PLC involvement, improving reliability.
3. Wind Turbine Local Monitoring
- Configuration: Edge I/O module acquires turbine temperature (TC) and rotation speed (pulse counting).
- Logic: Over-temperature → local emergency stop; abnormal speed → alarm and data upload to O&M platform.
- Result: Independent safety protection while enabling centralized monitoring.
Project Value
- PLC Substation Replacement – Simplifies system architecture and reduces cost.
- Distributed Autonomy – Each substation executes independent logic, ensuring faster response.
- Remote Visibility & Maintenance – Data uploaded via MQTT to cloud/central platforms, with remote configuration supported.
- High Reliability – Industrial-grade design with -40 to 85°C operation range, built-in watchdog, and stable long-term operation.
