Allen-Bradley 1756-L74 ControlLogix PAC Controller
$123.00
$320.00
Description
Overview
The 1756-L74 is a high-performance programmable automation controller from the Allen-Bradley ControlLogix 5570 platform. Designed for large-scale industrial control applications, this PAC combines advanced processing capability, integrated motion support, and extensive communication flexibility within a modular ControlLogix architecture.
The controller provides substantial user memory capacity and supports large I/O system integration, making it suitable for complex manufacturing, process automation, and high-speed machine control environments. It also includes removable non-volatile storage for project backup and firmware management.
Key Features
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Part of the Allen-Bradley ControlLogix 5570 controller family
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16 MB user application memory
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0.98 MB dedicated I/O memory
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Ships with 1 GB Secure Digital non-volatile memory card
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Integrated USB communication interface
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Supports large distributed I/O systems
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Four-character alphanumeric status display
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High-speed deterministic control performance
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Compatible with Studio 5000 Logix Designer environment
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Modular rack-based ControlLogix installation
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Allen-Bradley |
| Product Series | ControlLogix 5570 |
| Product Type | Programmable Automation Controller (PAC) |
| Model Number | 1756-L74 |
| User Memory | 16 MB |
| I/O Memory | 0.98 MB |
| Non-Volatile Storage | 1 GB Secure Digital Card (1784-SD1) |
| Communication Port | 1 USB Port |
| Maximum Discrete I/O | Up to 128,000 Points |
| Maximum Analog I/O | Up to 4,000 Points |
| Controller Connections | 500 Connections |
| Display Type | 4-Character Alphanumeric Display |
| Backplane Current @ 1.2V DC | 5 mA |
| Backplane Current @ 5.1V DC | 800 mA |
| Mounting Platform | ControlLogix Chassis |
| Programming Software | Studio 5000 / RSLogix 5000 |
| Weight | 0.15 kg |
Performance and System Integration
The 1756-L74 controller is optimized for centralized and distributed automation systems requiring high-speed processing and extensive communication capability. It supports coordinated control across I/O, drives, HMIs, safety systems, and industrial networks through the ControlLogix platform.
The included SD memory card enables firmware storage, project backup, and recovery functions, helping reduce commissioning time and simplifying maintenance procedures.
Typical Applications
This controller is commonly deployed in:
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Automotive manufacturing lines
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Packaging and converting systems
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Material handling automation
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Process control applications
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Power generation systems
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Water and wastewater treatment
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Oil and gas facilities
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High-speed production machinery
Compatibility
The controller is compatible with ControlLogix chassis systems and supports integration with various Allen-Bradley communication modules including:
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EtherNet/IP
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ControlNet
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DeviceNet
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Remote I/O
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Serial communication modules
It also supports distributed FLEX I/O, POINT I/O, and other Logix-based architectures.
FAQ
What programming software is used with the 1756-L74?
The controller is programmed using Studio 5000 Logix Designer, previously known as RSLogix 5000.
Does the controller include non-volatile memory?
Yes. The 1756-L74 includes a 1 GB 1784-SD1 Secure Digital memory card for backup and storage functions.
How many I/O points can this controller support?
The controller supports up to 128,000 discrete I/O points and approximately 4,000 analog I/O points depending on system architecture.
Can the controller communicate through USB?
Yes. A built-in USB port is included for local programming, diagnostics, and maintenance access.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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