Learn how a landfill sump system used groov EPIC, MQTT, and cloud SCADA to automate remote lead/lag pump control with fail-safe edge operation.
Lead/Lag Pump Automation Using groov EPIC, Codesys & XiO
A landfill water management site on the West Coast required an automated, cost-effective solution to control a sump pump system/landfill liquid pumping system using lead/lag logic while enabling secure remote monitoring.
MAC Automation designed and commissioned a control system using groov EPIC, Codesys, Node-RED, MQTT, and XiO cloud SCADA to deliver autonomous landfill liquid pumping control with remote visibility.
Technologies Deployed
Problem: Delivering reliable landfill liquid pumping control in a remote landfill environment
The site required:
- Analog level monitoring
- Automated lead/lag pump sequencing
- Remote monitoring capability
- Cloud-based data access
- Fail-safe local operation during network loss
The system needed to operate reliably in an outdoor landfill environment while maintaining continuous control regardless of connectivity.
Solution: System architecture for landfill liquid pumping control
With a solution for automated landfill liquid pumping control, MAC Automation implemented:
- groov EPIC edge controller
- Codesys control programming
- Node-RED for MQTT handling
- XiO cloud SCADA platform
- Local HMI interface
- Approximately 30 I/O points
Project Objectives
Fail-Safe Design
A critical requirement was uninterrupted local operation.
All control logic runs inside the groov EPIC. If network communication is lost:
- Pump control continues automatically
- Level monitoring remains active
- No dependency on cloud connectivity
Cloud SCADA provides visibility, not control dependency.
Commissioning & Ongoing Support
The system was commissioned in early 2026 and is part of a continuing upgrade strategy.
MAC Automation handled:
Project Execution
How It works:
- Analog level transmitters send signals to the groov EPIC.
- Codesys executes lead/lag pump logic locally.
- Node-RED manages MQTT communication.
- Data is transmitted securely to XiO cloud SCADA.
- Operators can monitor and control the system remotely.
Internal data exchange between Codesys and Node-RED allows seamless communication between local control and cloud reporting.
Outcome
Although recently commissioned, the automated landfill liquid pumping system provides:
- Automated lead/lag pump control
- Remote monitoring capability
- Reduced need for on-site checks
- Secure MQTT-based communication
- Scalable architecture for future expansion
Frequently asked questions
Lead/lag sequencing rotates pump operation to balance wear and ensure redundancy during high-level events.
In a landfill liquid pumping control system, MQTT provides lightweight, secure communication between field devices and cloud SCADA platforms.
All control logic executes locally in the groov EPIC. The system continues operating automatically.
Yes. The architecture is ideal for wastewater sites, lift stations, remote tanks, and distributed assets.
