The modernisation dilemma
The bottleneck is usually the software — not the controller.
Rip-and-replace is the instinctive vendor answer. For estates built on Mercury infrastructure, it is often unnecessarily expensive, disruptive and risky.
Mercury controllers have been an enterprise standard for over three decades and use an open architecture designed to work with multiple software providers. When leadership wants better reporting, IT flags cybersecurity, or the current platform can no longer integrate, the constraint is almost always the proprietary software sitting on top of sound hardware — not the hardware itself.