Flexible Motion Control System


Simotion D motion control systems for production machines cover all levels of performance, from simple positioning tasks to demanding applications, with extremely short cycle times on a large number of axes. Thanks to its scalability, Simotion D offers a high degree of flexibility for the ever-changing demands on machine automation. The Simotion D drive-based multi-axis control system not only offers PLC, motion control, and advanced technology functions, but also an integrated drive control based on the Sinamics S120 series of drives, also from Siemens. 


With the Simotion D445-2 DP/PN and D455-2 DP/PN versions, the performance range has been extended upwards. Compared to the previous generation, the maximum quantity has been doubled to 128 axes and the memory capacity significantly expanded. This has increased the PLC and motion control performance by a factor of three.  With Simotion D445-2 DP/PN and D455-2 DP/PN, the previously optional Profinet IO interface has now been integrated on the modules as standard. This frees up one slot that is available for other expansion options. The onboard interface is equipped with an integrated 3-port switch and facilitates the construction of different network topologies such as line, star or tree structures, without the need for additional external switches. The interface not only supports real-time (RT), but also isochronous real-time (IRT) data exchange and can be operated as a controller and/or device actuator. 


In addition to the Profinet interface, the Simotion D445-2 DP/PN and D455-2 DP/PN also have two Profibus and two Ethernet interfaces, as well as 28 digital I/Os, of which 16 can be used for technology tasks such as the output of output cams with microsecond resolution.


  • Drive control module with integrated SIMOTION functionality
  • Available in five different performance levels
  • Particularly well suited for compact or modular machines
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