Description
High-density SU compact CPU, commonly listed as 32 DI + 28 transistor outputs or 36 DI + 24 DO depending on region and SKU, high program memory and SU performance.
The Polar Energy Assessment:
The DN60SU is the upper end of the SU lineup offering the most local points in the SU family while keeping SU performance characteristics. Catalogs list the DN60SU as large local I/O capacity with SU features: ~15k steps, ~94 ns/step, PID, HSC and positioning. Because vendors sometimes show slightly different I/O splits by region (32/28 or 36/24), always confirm the exact SKU breakdown on the quote against the datasheet.
Pros
- Highest local I/O density available in SU class, keeps many I/O local without expansion.
- SU performance for PID/HSC while avoiding H-class cost.
Limitations
- Variations in local I/O split by market require SKU confirmation.
- If outputs are used for very high cycle switching, consider transistor vs relay requirements and coil current budgets.
Typical use cases
- Large AHU or plant panels where consolidation matters, machines with many sensors and actuators, and panels that want SU features while minimizing expansion racks.


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