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b maXX-softdrivePLC – Intelligence in the drive

Technology functions directly in the drive

With the maXX-softdrivePLC, Baumüller makes separate control hardware unnecessary for suitable applications. By combining motion control and PLC functions in the controller, Baumüller creates a decentralized control architecture for programming according to IEC 61131, which makes it easy to set up distributed intelligence in the machine. From the simple linking of digital inputs to complex control algorithms, control tasks can therefore be realized locally in the controller without sophisticated control programming tools, and is very easy to do with the ProDrive parameterizing tool.


  • Cost savings through the elimination of control hardware
  • Fieldbus communication between two axes is not necessary
  • Easy realization of master-slave functions
  • Cross-axis access to parameters is possible (double axis)

b maXX – intelligent drives

The b maXX-softdrivePLC runs as part of the firmware in the Baumüller b maXX 6000, b maXX 5000 and b maXX 3300 drive concepts, and is suitable for single and double axis applications. With the help of the b maXX-softdrivePLC, programs in the controller can run highly synchronously with the controller clock at cycle times of up to 125 μs. This can be used, for example, to program special filters.

Programming via ProDrive for
basic version

By using the b maXX-softdrivePLC, simple control tasks can be very easily realized decentrally in the controller via the ProDrive parameterizing tool – from the simple calculation through to control algorithms. With the help of the b maXX-softdrivePLC, programs can run highly synchronized with the controller clock cycle (≥62.5 μs).


Basic version

  • Simple functions
  • Can also be used by customers,
    e.g. for logical links, rescaling

ProDrive L de

Integrated in ProMaster and programmable as an extended version with ProPROG 5

The extended version of the b maXX-softdrivePLC is completely integrated into the ProMaster engineering framework. All applications for creating the machine and plant topology, the fieldbus, and I/O configurators, as well as applications such as the PROPROG 5 programming environment, the ProCAM cam disk editor, and much more are available to you there. Numerous preconfigured software modules, which can be used for motion control or analysis functions directly in the drive, are available for the extended version.

Extended version

  • More complex functions
  • Applied by Baumüller, e.g. movement of an axis, analysis of drive data

ProMaster L de

b maXX-softdrivePLC as motion control and for analyses in the drive

The drive-integrated PLC runs as part of the firmware in the b maXX servo converters of the 5000 and 6000 series. With the b maXX softdrivePLC, control functions for single and double axis applications can be moved from the central PLC to the drive. In addition, the data available in the drive can be used for analyses – completely without any external sensors.

softdriveplc extended

High-performance and modular: motion control functions in the drive

If motion control functions are moved into the drive, individual axes can be controlled more precisely. The calculations are implemented directly in the drive. The dynamics in the process is increased, as a result of which the cycle times, and thus the performance of the machine can be increased. An additional advantage is the modularity: The flexible topology allows individual functions to be separately integrated in the machine concept. The technology modules are available as finished machine modules. Example applications are cross-cutter or servo pump.

Cut process costs with analytics in the drive

Machine manufacturers can use the analytics modules to offer their customers added value without using additional hardware.
The smart energy monitoring module enables the energy consumption to be recorded reliably for individual axes or the whole machine. This transparency helps in the next step by making adjustments to the process to reduce energy consumption.
The Smart Condition Monitoring module enables the vibration analysis to be run directly in the drive. A machine standstill due to motor wear can therefore be prevented.

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Automation concepts, control technology, field bus communication,
ProMaster, Motion Control, IoT Industry 4.0, b maXX HMI, I/O systems