- Classic OPC DA was tethered strictly to Windows COM/DCOM, creating endless firewall and permissions failures.
- OPC UA operates over a single, secure, firewall-friendly TCP port (typically 4840) with built-in encryption.
- OPC UA runs natively on Linux, real-time operating systems, and directly on microprocessors inside smart sensors.
Flow Ctrl Tech Engineering: Turnkey industrial automation, PLC programming, SCADA development, HMI, fieldbuses, and IIoT architectures. Contact our engineering center at [email protected] or phone +91 91110 91005.