Allen-Bradley 1756-L74 ControlLogix 5570 Controller
- Brand
- Allen-Bradley
- Model
- 1756L74
- GEARWELL SKU
- GWP-000004392
- Category
- PLCs & I/O
Key specifications
- Memory
- 16 MB standard memory; 0.98 MB I/O memory
- I/O memory
- 0.98 MB
- Backplane current
- 5 mA at 1.2 V DC; 800 mA at 5.1 V DC
- Standard memory
- 16 MB
- Analog I/O maximum
- 4,000
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← Back to productsProduct overview
The Allen-Bradley 1756-L74 is a ControlLogix 5570 controller from Rockwell's ControlLogix 1756 range. It has 16 MB of user memory. It has a USB 2.0 port for programming, 0.98 MB of I/O memory, up to 128,000 digital or 4000 analog I/O and a 1 GB SD card (1784-SD1) installed at the factory. It ships with a 1756-ESMCAP energy storage module instead of a battery, communicates through EtherNet/IP, ControlNet or DeviceNet modules in the chassis, and supports controller redundancy. It installs in a 1756 ControlLogix chassis and takes one slot.
Technical reference
| Product name | Allen-Bradley 1756-L74 ControlLogix 5570 Controller |
|---|---|
| Brand | Allen-Bradley |
| Model | 1756L74 |
| Category | PLCs & I/O |
| Memory | 16 MB standard memory; 0.98 MB I/O memory |
| I/O memory | 0.98 MB |
| Backplane current | 5 mA at 1.2 V DC; 800 mA at 5.1 V DC |
| Standard memory | 16 MB |
| Analog I/O maximum | 4,000 |
| Digital I/O maximum | 128,000 |
| Energy storage module | 1756-ESMCAP |
| Embedded network interface | None |
| 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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