Product Description:

The 4XP0000.00-K22 keypad module is produced by B & R Automation as part of the 4XP Keypad Modules series. This compact operator panel presents tactile keys and is intended for direct machine access in distributed industrial control stations. Integrated into the backplane, the unit serves as a human-machine interface node, forwarding key presses to a central controller and receiving LED feedback data. Its purpose is to simplify user interaction with motion, process, or packaging equipment on the plant floor. The interface stays focused on local command entry and visual indication rather than full-screen operation.

In fieldbus terms, the module communicates over the X2X real-time bus. Toward the master, it contributes a cyclic process image of 1 Byte as the DP frame input, and this byte encodes the instantaneous state of all switches. Conversely, the controller delivers 2 Bytes of output data that govern status LEDs and watchdog bits. GSD support version 2.30 supports configuration with B & R automation software and third-party PROFIBUS engineering tools. The panel exposes exactly 6 momentary keys, and each one uses an individual debounce filter so transient contacts do not create false transitions. Key events are also mirrored into a separate input area, which keeps the traffic footprint low and makes the exchange easy to handle in cyclic control logic.

Logic addressing is performed through key input register 4, enabling deterministic mapping of the scanned byte within controller memory. For visual feedback, the device allocates 2 Words of LED output space, allowing independent color or blink patterns to be driven by the application task. Separate memory areas for key states and LED commands help keep the host-side control logic straightforward. This arrangement lets the controller update local indications without adding unnecessary process data to the network exchange.