: It acts as an OPC (OLE for Process Control) Data Access Compliant Server and a DDE (Dynamic Data Exchange) server. This allows third-party applications, such as Microsoft Excel or custom Visual Basic programs, to pull real-time data directly from controllers.

The distinction is made during or after installation via the Activation process.

Yes – that is its main strength. Professional supports DH‑485 (via 1747‑UIC), DH+ (via 1784‑PCMK or 1784‑PKTX), and legacy serial pass‑through.

Here is a comprehensive report on RS-Linx Classic Professional: