ALLEN BRADLEY 1756-L81ESK PLC

About ALLEN BRADLEY 1756-L81ESK PLC

The Allen-Bradley 1756-L81ESK controller is an Allen-Bradley GuardLogix 5580 safety controller. It can perform 31 standard tasks and 1 safety task. The number of programs supported per task is 1000 programs. The integrated communication ports on the 1756-L81ESK controller include one USB port and one Ethernet port. The USB port complies with the USB 2.0 standards and it supports a 12 Mbps data rate. The Ethernet port can support 10/100, and1000 Mbps data rates. The optional communication modules available for the 1756-L81ES controller include the ControlNet, DeviceNet, Remote I/O, DH+, and SynchLink modules. The maximum number of Ethernet/IP nodes supported is 100 nodes.

The following programming languages are supported on the 1756-L81ESK controller are the ladder diagram, structured text, function block diagram, and the sequential function chart languages. Controller redundancy is not supported. The user memory capacity on the module is 3 MB and safety memory capacity is 1.5 MB. The maximum number of digital and analog I/Os that are supported are 128,000 and 4000, respectively. The 1756-L81ES controller can support a total of 128,000 I/O. The module comes with 2 GB of integrated nonvolatile memory. The current drawn by the module at 1.2 Volts DC is 5 milliamps and at 1.5 Volts DC, the current draw is 1.2 Amps. The power dissipated as heat during operation is 6.2 Watts. The approximate module weight is 0.394 kilograms. The 1756-L81ES controller requires one empty slot in the chassis for installation. Chassis that are compatible with the 1756-L81ES include the 1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K,1756-A17, and the 1756-A17 K Series B and Series C chassis. The operating temperature range is from 0 to 60 degrees Celsius.

Robust Industrial Automation Capabilities

Engineered for demanding industrial environments, the 1756-L81ESK PLC boasts an embedded safety-certified design and redundancy support when paired with compatible modules. Its high-performance Allen-Bradley L8 Series processor and support for up to 50,000 instructions ensure reliable and efficient control in complex automation scenarios.


Comprehensive Connectivity and Control

Connectivity options include Ethernet/IP and a USB Type B port, enabling seamless integration with various automation systems. The controller's status LEDs provide immediate feedback on essential functions, while chassis-mounting ensures stable installation in control cabinets. Remote control and diagnostic features enhance maintenance and monitoring.


Flexible Expansion and Secure Operation

With capacity for up to 31 local I/O modules and removable 1 GB secure digital card, this PLC offers scalable solutions tailored to specific project requirements. Integrated energy-efficient features and embedded safety functions safeguard both processes and personnel, promoting secure and sustainable automation.