XM4203.21-21-31-63-301-NN-NNNN-ILC-NNNNN Bosch Rexroth Indramat
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MPN: R911401986
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The Bosch Rexroth Indramat XM4203.21-21-31-63-301-NN-NNNN-ILC-NNNNN is part of the XM21 IndraControl Systems series and features an Intel Core i3 2.30 GHz processor with 2 GB of RAM. It operates on a nominal supply voltage of 24 V DC, provides an IP20 rating, and measures 200 mm wide, 126.3 mm high, and 74.1 mm deep. The unit weighs 1.49 kg and includes 4 GB of read-only memory.
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Product Description:
The XM4203.21-21-31-63-301-NN-NNNN-ILC-NNNNN is an embedded control unit produced by Bosch Rexroth Indramat within the XM21 IndraControl Systems series. Designed as a programmable logic controller and motion coordinator, the device links fieldbus networks with drive amplifiers and I/O slices to execute deterministic machine sequences. In industrial automation, it hosts application code, processes feedback signals, and issues real-time commands that synchronize axes, safety interlocks, and user interfaces on factory equipment.
It operates from a nominal supply of 24 V DC, so standard control cabinet power lines can feed the logic and I/O backplane. An Intel Core i3 processor running at 2.30 GHz executes motion tasks while preserving cycle times for communication layers. The controller carries 2 GB of DDR3 RAM for variable handling, complemented by 4 GB of soldered flash memory that stores the operating system and project files. One 1 Gbit RJ45 engineering Ethernet port allows high-speed downloads, diagnostic tracing, and OPC traffic from supervisory PCs. Additional resources include 4 MB of remanent memory for nonvolatile variables and a single SD card slot for recipe expansion. Dual USB connectors, consisting of one host port and one device port, support service tools. Protection Class III confines the internal circuitry to safe extra-low voltage levels.
The housing is only 74.1 mm deep, 200 mm wide, and 126.3 mm high, permitting installation on a DIN rail in a shallow control cabinet. With a mass of 1.49 kg, the unit can be mounted on cantilevered rail sections without adding excessive load. The IP20 ingress protection rating makes the controller suitable for closed enclosures that protect it from dust and moisture. Operation is permitted at elevations up to 3000 m above sea level without derating; above this elevation, lower air density may reduce cooling performance. Natural convection slots help dissipate heat when the required installation clearances are maintained. Internal temperature sensors monitor heat buildup during continuous operation and help protect the controller’s memory components.
