6FC5210-0DA21-2AA1 CPU processor module  

Product Manual：

core parameters
Processor: High performance industrial grade CPU with a clock speed of ≥ 1 GHz
Memory/Storage: 512 MB RAM; 4 GB Flash (system+user data)
Control capability: up to 31 feed axes/spindles; Interpolation cycle ≤ 0.5 ms
PLC integration: Built in S7-300 PLC, supports ladder diagram/STL programming
Communication interface:
Drive bus: High speed servo bus (connected to SINAMICS drive)
Network: PROFINET, MPI/PROFIBUS DP, Ethernet
Serial port: 2xRS232; 1×USB
Power supply: 24 VDC ± 20%, power consumption of approximately 50 W
Size/Weight: Approximately 140 × 200 × 120 mm; Approximately 4.5 kg
Temperature range/protection: 0 ℃~+50 ℃; IP20 (installed inside the cabinet)
Adaptation systems: 840D sl, 840Di sl, PCU 50.3/321, etc

Main Features
Three in one core: NC operation+PLC control+integrated communication management, the “brain” of the CNC system.
High speed and high-precision: multi-core operation+0.5ms interpolation, supporting five axis linkage and complex surface machining.
Multi axis synchronization: Hard real-time bus ensures high-precision synchronization of 31 axes, suitable for gantry, turning and milling composites.
Integrated PLC: Built in S7-300 PLC, no additional PLC module required, saving cost and space.
Industrial grade reliability: wide temperature range, anti-interference, earthquake resistance, suitable for harsh workshop environments, supporting 24-hour continuous operation.
Rich interfaces: PROFINET/Ethernet/DP/USB/serial port, easy to interface with HMI, drivers, and upper computer.
ending
In summary, 6FC5210-0DA21-2AA1 (NCU 571.2) is the original core CPU module of Siemens 840D series, with strong performance, high integration, stability and reliability. It is an essential core control component for high-end machining centers, five axis machine tools, and large gantry equipment.

Product detailed pictures：

6FC5210-0DA21-2AA1

product video

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