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Allen Bradley ControlLogix 1756-L85EXT

Product image is representative; revision or series may vary. Contact us to request a specific version.

1756-L85EXT

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The 1756-L85EXT, manufactured by Allen Bradley, serves as an advanced environment controller within the ControlLogix series. It accommodates extensive memory and connection capabilities, making it suitable for managing a large number of inputs and outputs efficiently.

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Ships from Raleigh, NC
2 Year DO Supply Warranty
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-L85EXT

ManufacturerAllen Bradley
Product TypeEnvironment Controller
Product LineControlLogix
Part Number1756-L85EXT
Weight2.00 lbs (0.91 kg)
User Memory40 MB
I/O Memory5 MB
Controller Tasks32 Tasks
Programs per Task1,000 programs per task
Embedded Ethernet Port1x RJ-45 Gigabit EtherNet/IP port
EtherNet/IP Nodes300 Nodes
USB Port1x USB 2.0
CIP Connections512 CIP connections
I/O Digital Capacity128,000 digital I/O points
I/O Analog Capacity4,000 analog I/O points
Relative Humidity5 to 95% (Non-Condensing)
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The Allen Bradley 1756-L85EXT is designed as an environment controller equipped for robust performance in complex control situations. This unit integrates a user memory capacity of 40 MB, complemented by an I/O memory of 5 MB, providing the necessary resources for extensive operations. It can manage up to 32 distinct controller tasks at once, allowing for flexibility in program execution, with each task supporting as many as 1,000 programs.

Communication capabilities include a single embedded Ethernet port featuring an RJ-45 connection, enabling Gigabit EtherNet/IP connectivity. This setup facilitates links to as many as 300 EtherNet/IP nodes, which enhances the scalability of connected devices within the system. In addition to the Ethernet port, there is a USB 2.0 port for direct connections and data transfer capabilities. The controller is capable of supporting 512 CIP connections, ensuring robust communication across the network.

From an I/O perspective, this model excels with a capacity for 128,000 digital I/O points and 4,000 analog I/O points, making it suitable for high-demand applications. The environment controller is rated to operate efficiently in conditions where relative humidity ranges from 5% to 95%, ensuring reliable performance in various settings.