Allen-Bradley 1756-L7SP ControlLogix Controller

The Allen-Bradley 1756-L7SP GuardLogix Safety Partner Controller is a dedicated safety partner for GuardLogix systems, designed to execute safety tasks in coordination with a primary GuardLogix controller. As the safety partner, it must be installed in the chassis to the immediate right of the primary controller and communicates across standard ControlLogix networks including EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus, Remote I/O, SynchLink, and third‑party networks. It draws about 2.5 watts of power and provides 30 V continuous isolation voltage, with an open‑style, chassis‑based enclosure and a 2‑wide module footprint. Weight is approximately 0.25 kg (0.55 lb). A safety partner is required for each 1756 GuardLogix controller, and the unit is powered by standard 1756 power supplies (for example the 1756-PA50/PA72/PA75 family and related 1756-PB supplies). The L7SP is used specifically as the safety partner in a GuardLogix installation and does not function as the primary safety controller by itself; it works together with the primary controller to monitor and ensure safety‑rated operations.