Description
Siemens Simatic S7 300 Digital Output Module
The SIEMENS SIMATIC S7-300 SM 322 (6ES7322-1BP50-0AA0) is an ultra-high-density digital output module. With 64 outputs packed into a standard 40mm wide housing, it is designed for systems requiring a massive number of control signals in a very small footprint.
This module is distinct because it uses Sinking (M-switching) logic, which is less common in standard European S7-300 configurations compared to Sourcing (L-switching) modules.
Technical Specifications
- Connecting Cables: Specialized ribbon-style cables are required to bridge the module to the terminal blocks.
- Recommended Successor: For new projects or migrations to the S7-1500 platform, the equivalent high-density module is the 6ES7522-1BP50-0AA0 (64 DO, Sinking).
Common Wiring Accessories
If you are ordering a replacement, ensure you also have these necessary components, as they are rarely sold with the module itself. Front Connector Module of 6ES7392-1AN00-0AA0 (2 units required)

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