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SKU:1756-L73
1756-L73 Allen-Bradley | 8MB Logix5673 Processor Module
Manufacturer: Allen-Bradley
Product No.: 1756-L73
Product Type: ControlLogix Processor Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 250g
Shipping port: Xiamen
Warranty: 12 months
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Description
Allen-Bradley, a Rockwell Automation brand, makes the 1756-L73 for large automation tasks. This ControlLogix 5570 PAC gives 8 MB user memory, 128,000 total I/O, and 32 tasks with 100 programs each.
Key Features of 1756-L73
- Part of ControlLogix series; supports simplex or redundant high‑availability configs.
- Handles 128,000 digital I/O and 4,000 analog I/O locally or remotely.
- Links via Ethernet/IP, ControlNet, DeviceNet, DH+, RIO, SynchLink, and third‑party protocols.
- Integrated motion via SERCOS, analog sensors, and motion over Ethernet/IP.
Core Specs – Brand: Allen-Bradley | Model: 1756-L73
- User memory: 8.00 MB; I/O memory: 0.98 MB.
- Max digital I/O: 128,000; Max analog I/O: 4,000.
- Tasks: 32 controller tasks, 100 programs per task.
- Power: 2.50 W; draws 800 mA at 5.10 V DC, 5.00 mA at 1.20 V DC.
- USB 2.0: 12.00 Mbps; Isolation: 30.00 V continuous.
- Operating temp: 0.00–60.00 °C; Non‑operating: -40.00–85.00 °C.
- Humidity: 5–95% non‑condensing; Weight: 0.25 kg.
Installation Tips
- Fit 1756-L73 in any slot of 1756‑A4, 1756‑A7, 1756‑A10, 1756‑A13, 1756‑A17 chassis.
- Use standard or redundant power supplies matched to your system needs.
- Keep clear of strong EMI; use USB 2.0 for fast, safe programming.
Package Contents
- One 1756-L73 controller module; no extra items included.
- Ships via FedEx, UPS, or DHL for fast, trackable delivery.
FAQ
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Q: What is the I/O limit of 1756-L73?
A: Up to 128,000 digital I/O and 4,000 analog I/O. -
Q: Is a battery needed for memory retention?
A: No, energy storage keeps memory without a battery. -
Q: Which languages can program 1756-L73?
A: Ladder, structured text, function block, sequential function chart.
Additional Specifications
Scalar (V/f)
Vector
AC-powered
Buying Guide
- Confirm the exact model, part number, and specifications before ordering.
- Ensure compatibility with your current machinery or control systems.
- Reach out via sale@etowonauto.com or +8617859788089 for technical assistance.
- Review delivery options, lead times, and shipping requirements.
- Follow manufacturer instructions and best practices during installation.
Shipping And Return
In-stock items are typically dispatched the same business day. For products not currently in stock, dispatch times may vary based on availability. International shipping is available, and shipping costs are calculated according to destination, weight, and carrier selection.
Returns are accepted within 30 days of receipt, provided items are unused and in original condition. Return shipping costs are the responsibility of the customer. Please contact us before returning any item to receive return authorization.
For more details, please review our Shipping & Return Policy.

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