Allen-Bradley 1756-L81ES GuardLogix 5580 Safety Controller

Product Description

Configured for safety control execution and EtherNet/IP data exchange, the Allen-Bradley 1756-L81ES (1756-L81ES GuardLogix 5580 Safety Controller) provides processor-level control for GuardLogix 5580 systems. It provides 3 MB standard user memory, 1.5 MB safety memory, a USB interface, and an embedded 1 GB Ethernet port.

Hardware Specifications

GuardLogix 5580 Communication and Control

The 1756-L81ES combines processor memory, safety memory, USB communication, and embedded Ethernet within the GuardLogix 5580 controller architecture. The supplied specifications identify a 1 GB embedded Ethernet port and support for up to 100 EtherNet/IP devices.

In addition, the 12 Mbps USB interface provides a local communication path for compatible configuration and service functions. The 4-character alphanumeric display provides local controller status information without requiring an external display.

For EtherNet/IP installations, engineers should verify the controller firmware, project revision, network topology, and connected-device compatibility before commissioning. Furthermore, safety application configuration must match the applicable GuardLogix system requirements.

Frequently Asked Questions

Q: How much standard and safety memory does the 1756-L81ES provide?
A: The controller provides 3 MB of standard user memory and 1.5 MB of safety memory.

Q: What communication interfaces are specified for the 1756-L81ES?
A: The supplied data specifies a USB interface with 12 Mbps communication speed and a 1 GB embedded Ethernet port.

Q: Does the controller include nonvolatile memory?
A: Yes. The supplied specification lists 2 GB of nonvolatile memory.

Field Installation Guidelines

• Install the controller in a compatible ControlLogix/GuardLogix chassis according to the applicable Rockwell Automation installation documentation.
• Confirm chassis power availability before inserting or removing the controller.
• Verify that the backplane, controller, and connected modules match the configured system architecture.
• Route Ethernet communication cables separately from high-voltage and high-current conductors where practical.
• Maintain proper cable shielding and grounding practices according to the installed network and site electrical standards.
• Verify USB connections before performing local configuration or service operations.
• Confirm firmware and project compatibility before downloading a safety application.
• After installation, inspect controller status indicators and the 4-character display before placing the system into operational service.
• Validate the complete safety function, including connected I/O and programmed safety logic, before enabling the controlled process.

Other Attributes

• Series: Allen-Bradley ControlLogix
• Country of Origin:  USA
• Lead Time: In Stock, 2 Working Days

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