Product Description
The Allen-Bradley 1756-L81ES is a GuardLogix 5580 safety controller supporting 31 standard and 1 safety task, with 1000 programs per task. It features a USB 2.0 port (12 Mbps) and a 10/100/1000 Mbps Ethernet port, and supports optional communication modules like ControlNet and DeviceNet. It handles up to 100 Ethernet/IP nodes and uses ladder diagram, structured text, function block diagram, and sequential function chart programming languages. It has 3 MB user and 1.5 MB safety memory, supports up to 128,000 digital and 4000 analog I/Os (total 128,000 I/O), and includes 2 GB nonvolatile memory. It draws 5 mA at 1.2V DC and 1.2 A at 1.5V DC, dissipates 6.2 W, weighs approximately 0.394 kg, and requires one chassis slot. Compatible chassis include 1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K, 1756-A17, and 1756-A17 K Series B and Series C, with an operating temperature range of 0-60C. It offers an integrated user memory of 3 MB and Safety memory of 1.5 MB, and a maximum I/O capacity of 128,000. Unlike ControlLogix controllers, this GuardLogix controller has an integral and removable memory of 1756-SD2, which is the only compatible memory for this controller module. This module supports a wider variety of Chassis and Power Supply modules. This module supports implementation of redundancy with the use of ControlLogix redundancy modules. It has an intuitive diagnostic display that provides a textual description of the modules status. With the use of this controller, Safety Instrumentation Level (SIL) 2 is achieved. This module supports mix of standard ControlLogix and Safety I/O and may also implement topologies that a standard ControlLogix can support.
Is Your Device Showing These Signs?
The Allen Bradley 1756-L81ES ControlLogix controller commonly experiences issues such as corrupted firmware requiring a forced firmware update via BOOTP/DHCP, power supply failures leading to system downtime, memory module errors causing program faults, communication network disruptions on EtherNet/IP resulting from incorrect IP addressing or faulty cabling, and backplane connectivity problems due to damaged pins or corrosion. Resolve these issues through firmware reflashing, power supply replacement, memory module diagnostics and replacement, network configuration verification, and backplane inspection and repair. Address these promptly to maintain optimal PLC performance and prevent process interruptions.
Technical specifications
The Allen-Bradley 1756-L81ES is a GuardLogix 5580 safety controller with extensive capabilities, including support for numerous tasks, programs, and Ethernet/IP nodes. It features multiple communication options, programming languages, and a large I/O capacity. It has dedicated user and safety memory, nonvolatile storage, and specific power requirements. It's compatible with a wide range of chassis and power supply modules, supports redundancy, offers diagnostic information, and achieves SIL 2 safety levels. It is compatible with standard ControlLogix and Safety I/O.
Our Repair Process for the
1756-L81ES
Our repair process for Allen Bradley 1756-L81ES ControlLogix controllers begins with a comprehensive diagnostic assessment to pinpoint the failure. For corrupted firmware, a forced firmware update is performed via BOOTP/DHCP. Power supply failures necessitate immediate replacement with a tested, compatible unit. Memory module errors are resolved through rigorous diagnostics followed by replacement of the faulty module. Communication network disruptions on EtherNet/IP are addressed by verifying and correcting IP addressing and inspecting/replacing faulty cabling. Backplane connectivity problems require a detailed inspection for damaged pins or corrosion, followed by necessary repairs or component replacement. This process ensures the restoration of optimal PLC performance and prevents process interruptions.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.