Allen-Bradley 1756-L71S GuardLogix 5570 Safety Controller
- Brand
- Allen-Bradley
- Model
- 1756L71S
- GEARWELL SKU
- GWP-000003603
- Category
- PLCs & I/O
Key specifications
- Memory
- 2 MB standard memory; 1 MB safety memory; 0.98 MB I/O memory
- I/O memory
- 0.98 MB
- Chassis width
- 1 slot for the primary controller
- Safety memory
- 1 MB
- Standard memory
- 2 MB
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← Back to productsProduct overview
The Allen-Bradley 1756-L71S is a GuardLogix 5570 safety controller from Rockwell's ControlLogix 1756 range. It has 2 MB of user memory and 1 MB of safety memory. Paired with a 1756-L7SP safety partner in the next slot, it is used for safety applications up to SIL CL 3/PLe (Category 4); the pair takes two slots. It has 0.98 MB of I/O memory and a 1 GB SD card (1784-SD1), and the safety task is programmed in ladder logic.
Technical reference
| Product name | Allen-Bradley 1756-L71S GuardLogix 5570 Safety Controller |
|---|---|
| Brand | Allen-Bradley |
| Model | 1756L71S |
| Category | PLCs & I/O |
| Memory | 2 MB standard memory; 1 MB safety memory; 0.98 MB I/O memory |
| I/O memory | 0.98 MB |
| Chassis width | 1 slot for the primary controller |
| Safety memory | 1 MB |
| Standard memory | 2 MB |
| Energy storage module | 1756-ESMCAP |
| Integrated motion axes | Up to 100 axes; actual capacity depends on controller/module configuration, loop type, network connections and compatible firmware |
| Local programming port | 1 USB; temporary local programming only, not permanent or hazardous-location use |
| Nonvolatile storage | Supports 1784-SD1 (1 GB) and 1784-SD2 (2 GB) |
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