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Allen Bradley ControlLogix 1756-L81EP

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1756-L81EP

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The ControlLogix 1756-L81EP is a high-performance process controller module from Allen Bradley. It supports up to 32 tasks and can handle a maximum of 128,000 input/output channels, making it suitable for extensive automation applications.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 1756-L81EP

ManufacturerAllen Bradley
Product TypeProcess Controller Module
Product LineControlLogix
Part Number1756-L81EP
UPC194033203658
Weight1.44 lbs (0.65 kg)
Number of Controller Tasks32 tasks
Built-in Communication Port TypesOne embedded Ethernet port and one USB port
Ethernet Transmission Speed10, 100, and 1,000 megabits per second
Maximum Number of Ethernet/IP Nodes SupportedUp to 100 nodes
Programming LanguagesFunction block diagram, sequential function chart, relay ladder logic, and structured text
Number of Programs per Task1,000 programs per task
User Memory Capacity3 megabytes
Current Draw5 milliamperes at 1.2 Volts DC and 1.2 Amperes at 5.1 Volts DC
Power Dissipation6.2 Watts
Enclosure TypeOpen-style enclosure
Maximum Number of Input/Output ChannelsUp to 128,000 channels
Coating TypeConformal coating
Display Type4-character alphanumeric display
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The Allen Bradley 1756-L81EP process controller module offers advanced capabilities in control applications. It operates with an open-style enclosure, providing efficient access for installation and maintenance. This unit boasts a current draw of 5 milliamperes at 1.2 volts DC, and 1.2 amperes at 5.1 volts DC, alongside a power dissipation of 6.2 watts, reflecting its energy-efficient design.

Networking capabilities are emphasized with an embedded Ethernet port, supporting transmission speeds of 10, 100, and 1,000 megabits per second, as well as a USB port for added connectivity options. Overall, it can support up to 100 nodes on an Ethernet/IP network, providing flexibility for complex system integrations. The module is programmed in various languages, including function block diagram, sequential function chart, relay ladder logic, and structured text.

The user memory capacity is 3 megabytes, providing ample space for programs and data management, with the ability to manage 1,000 programs per task, enhancing its versatility. The module also features a conformal coating for improved durability in demanding environments, while a 4-character alphanumeric display streamlines monitoring and control processes. The 1756-L81EP is ideal for applications requiring robust processing power and versatility in a compact form factor.