Controls

BACnet MSTP and BACnet IP are both widely used communication protocols in commercial HVAC and Building Management Systems (BMS), but they serve different applications and have different performance characteristics.

BACnet MSTP

Operates over RS-485 (twisted pair).

All devices share a single communication trunk in a token-passing loop.

Lower bandwidth, typically 9.6–76.8 kbps.

Very stable when installed correctly but sensitive to cable quality, grounding, and addressing issues.

In today's rapidly evolving HVAC industry, professionals seek control solutions that offer flexibility, scalability, and cost-effectiveness without compromising performance. Enter open-source controllers, specifically, the powerful combination of WAGO controllers and the CODESYS platform. Here's why HVAC professionals, integrators, and decision-makers should strongly consider making the switch.

💰Cost Savings & Licensing Freedom

One of the most compelling advantages of adopting CODESYS V3.5 is its cost efficiency. Unlike proprietary systems with expensive upfront licensing and recurring fees, CODESYS provides a comprehensive, fully-functional Integrated Development Environment (IDE) completely free of initial charges. This licensing freedom ensures your organization avoids vendor lock-in, drastically reducing operational expenditures and enhancing long-term profitability (Wikipedia, WAGO AU). It is important to note that while end-users and integrators benefit from free use, WAGO itself covers licensing fees to embed and redistribute the CODESYS runtime environment in their controllers.

🔄Seamless Compatibility & Standardization

Built upon the widely accepted IEC 61131-3…