XM4203.21-21-31-63-301-NN-NNNN-MTXSNNNNN by Bosch Rexroth Indramat

The XM4203.21-21-31-63-301-NN-NNNN-MTXSNNNNN is an embedded motion and logic controller produced by Bosch Rexroth Indramat for the XM21 IndraControl Systems series. It serves as a compact PLC-class platform that coordinates drives, I/O, and HMI devices in automated machinery, combining multi-axis interpolation with general machine sequencing inside a 24 V DC cabinet environment. This arrangement allows one controller to manage motion paths and supervisory logic from a single hardware node, which helps simplify control architecture in compact machines. It is suited to applications that need centralized control of motion and machine logic within a small cabinet footprint.

An Intel Core i3 processor with two physical cores operates at 2.30 GHz, giving the controller enough computational headroom for kinematic transformations and real-time fieldbus stacks. Its memory complement is 2 GB of DDR3 RAM, supporting sizable user programs, buffered process data, and runtime variables. Up to 12 controllable axes can be synchronized from the integrated Sercos master, while as many as three extension modules can attach on the right side for additional I/O or communication options. The logic circuitry is powered from a 24 V DC supply, and one SD card slot provides removable storage for program or recipe files. External interfaces include one USB device connection, provided as 1 USB port for data transfer or setup. The unit is rated to Protection Class III and carries an IP20 ingress rating, so installation must remain inside a closed control panel.

Casing dimensions are tailored for shallow enclosures: width is 200 mm, height is 126.3 mm, and depth reaches 74.1 mm. With these proportions, the housing weighs only 1.51 kg, easing DIN-rail mounting and reducing load on swing-out frames. Operation is permitted up to 3000 m altitude without derating, and the dual-core CPU maintains deterministic cycle times within this operating window. The SD card slot and USB device interface remain accessible from the front, while internal backplane contacts support the permitted extension modules.