Here are some key features of the 440R-D22S2 safety relay:

Inputs and Outputs: This safety relay module has 22 safety inputs and 2 safety outputs. It can accept inputs from various safety devices such as two-hand control devices, safety switches, and safety mats.

Safety Ratings: The 440R-D22S2 is designed to meet international safety standards and has a high safety integrity level (SIL). It is capable of achieving SIL 3 according to IEC 61508, PLe (Performance Level e) according to ISO 13849-1, and Category 4 according to EN 954-1.

Configuration and Programming: The 440R-D22S2 can be configured and programmed using the Guardmaster Safety Relay Configuration Software. This software provides a user-friendly interface to set up the safety functions and monitor the relay's operation.

Communication and Connectivity: The safety relay module supports various communication options, including EtherNet/IP and DeviceNet, allowing integration into larger control systems and enabling remote diagnostics and monitoring capabilities.