Mitsubishi to siemens plc upgrade
Replacing an aging control system and hard-wired mimic panel with a modern, fully integrated automation solution - delivering enhanced visibility, diagnostics, and long-term scalability.
Our customer's plant was running on an ageing Mitsubishi PLC paired with a hard-wired LED mimic panel — a combination that had served its purpose but was becoming increasingly difficult to maintain, diagnose, and scale. Limited visibility into system faults, slow fault identification, and the absence of data logging meant the team was operating without the insights needed to drive efficiency. A full control system upgrade was required.
Before vs After
Previous System
- Ageing Mitsubishi PLC with limited diagnostics
- Hard-wired LED mimic panel - rigid and difficult to modify
- No data or alarm logging capability
- Slow fault identification and troubleshooting
- Limited scalability for future expansion
New System
- Siemens S7-1500 PLC with enhanced processing and diagnostics
- Siemens Comfort HMI with clear visuals and alarm management
- Full data and alarm logging for traceability
- Rapid fault identification through built-in diagnostics
- Designed for long-term support and future expansion
What We Delivered
Siemens S7-1500 PLC
Superior processing power and native diagnostics for reliable plant control
Comfort HMI
Custom-built screens tailored to the customer's workflows and operations
Data & alarm logging
Full event traceability and system monitoring out of the box
Future-ready architecture
Scalable design to support long-term growth and system expansion
Outcomes at a Glance
↓ Faults
Faster fault identification through built-in diagnostics
↑ Visibility
Real-time insight into plant behaviour via data logging
∞ Scale
Architecture supports future expansion without redesign
“The result is a cleaner, more maintainable control system with vastly improved visibility - giving the customer the confidence to operate efficiently and the foundation to grow.”