Allen-Bradley 1756-L83ESK GuardLogix 5580 Controller CPU Module

Allen-Bradley 1756-L83ESK GuardLogix 5580 Controller CPU Module is a conformally coated high-performance safety CPU designed for Rockwell Automation’s GuardLogix 5580 ecosystem. The SK variant provides 10 MB of standard program memory plus 5 MB safety memory, a USB port, and a 1 Gb embedded Ethernet port, with support for up to 250 EtherNet/IP devices and a 4‑character alphanumeric display for local status. This GuardLogix 5580 CPU is built for industrial environments requiring integrated safety controls and tight I/O integration, pairing with safety I/O modules to deliver robust control for machinery and processes. Weighing roughly 394 g (0.868 lb), the unit is part of the series B lineup and is conformally coated to tolerate challenging environmental conditions; note that Rockwell has announced the GuardLogix 5580 controllers, including 1756-L83ESK, are scheduled for discontinuation after December 31, 2026.