A-B 25C-A4P8N114 Programmable Controller Module

. Product Description

The 1756‑L73 is a Logix5573 controller of Rockwell ControlLogix 5570 platform. It is a mid‑range programmable automation controller (PAC) module for ControlLogix chassis. This CPU executes user control logic, handles I/O data processing, motion control and network communication tasks. It only comes with local USB programming port; external communication functions require additional communication modules. It supports multiple programming languages under Studio 5000 Logix Designer environment for discrete, process and motion automation solutions.

2. Product Parameters

• Part Number: 1756‑L73

• Series: ControlLogix 5570, Logix5573 Controller

• User Memory: 8 MB

• Dedicated I/O Memory: 0.98 MB

• Local Port: 1 × USB 2.0 (for programming, firmware update & troubleshooting, no built‑in Ethernet port)

• Max Controller Connections: 500

• Supported Motion Axes: up to 100 axes for CIP motion

• Max Tasks: 32 tasks, maximum 100 programs per task

• Power Consumption: 2.5W; Current draw: 800mA @5.1VDC, 5mA @1.2VDC

• Operating Temperature: 0℃ ~ 60℃

• Non‑volatile Memory: support SD card (1784‑SD1 / SD2), power‑off data retention relies on 1756‑ESMCAP energy storage module

• Certifications: UL, CUL, CE, RCM, KC, Marine certification

• Programming Software: Studio 5000 Logix Designer

• Lifecycle Status: Mature product, no new green‑field recommendation, spare‑part available for existing site maintenanceallanbradl...

3. Product Advantages

1. Medium‑large 8MB user memory, suitable for complex program, data logging and multi‑task control requirements.

2. Rich control capability, supports discrete control, process control and EtherNet/IP CIP integrated motion control.

3. Open multi‑language programming: ladder logic, structured text, function block diagram and sequential function chart.

4. Full redundancy architecture supported with corresponding redundancy modules for high‑availability requirement.

5. Good compatibility with wide range of 1756 series I/O and drive products in Rockwell Integrated Architecture system.

6. On‑board 4‑character diagnostic display for quick fault code reading and module status check.

4. Notes & Cautions

1. There is no embedded Ethernet port. EtherNet/IP, ControlNet or other field‑bus communication must be realized via separate 1756 communication modules.

2. The controller itself does not contain backup battery. Energy storage module 1756‑ESMCAP is required for logic data retention after power loss.

3. Firmware version must match Studio 5000 software revision during project download and online modification.

4. Not safety‑rated controller; safety‑related application shall select GuardLogix variant 1756‑L73S.

5. It is a mature legacy platform. For new projects, consider newer ControlLogix 5580 (1756‑L8x series).

6. Observe cabinet temperature and dust‑proof requirement, avoid exceeding rated operating temperature range.

5. Product Applications

• Automotive assembly production lines

• Food & beverage processing automation

• Packaging machinery control

• Material handling and conveyor systems

• Oil & gas and general process industry

• Mining auxiliary control system

• Large‑scale factory retrofit & legacy system spare‑part replacement

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