Siemens 6SN1118-0DM31-0AA2 Digital Control Module Card

Siemens 6SN1118-0DM31-0AA2 Ver B is a SIMODRIVE 611 digital control module card designed for two-axis, closed-loop servo control within the SIMODRIVE 611 family. This high-standard digital control module provides two axes of digital regulation with Sin/Cos feedback at 1 Vpp, aligning with Siemens' approach to precise motion control in the 611 drive system. As a plug-in component of the SIMODRIVE 611 architecture, the 6SN1118-0DM31-0AA2 variant is documented in distributor catalogs and service literature as the digital control module card for dual-axis applications, commonly sold as a replacement part for existing 611 installations. The dual-axis configuration supports coordinated control of servo motors with independent feedback channels, enabling accurate positioning and velocity control within the 611 digital control loop hardware. Version B designation distinguishes this specific iteration within the family, and retailers often market it under the SIMODRIVE 611 digital control module lineup as a high-standard two-axis solution for Siemens automation ecosystems.