IO-Link - M31 modules are a product line of industrial communication modules, typically associated with ifm electronic GmbH, a German company specializing in automation technology. These modules serve the industrial automation sector, enabling smart sensor and actuator connectivity via the IO-Link protocol, a global standard for point-to-point communication. The M31 series is designed for rugged environments, offering reliable data exchange and diagnostics in manufacturing, process control, and machinery applications. Key products include IO-Link masters, hubs, and interface modules, which streamline integration with PLCs and control systems.