Allen-Bradley 1756-LSP GuardLogix Safety Partner — Safety partner for original GuardLogix (1756-L6xS) controllers; replaced by 1756-L7SP. Allen-Bradley 1756-LSP GuardLogix safety partner. Provides the redundant safety co-processor that pairs with an original GuardLogix primary controller (1756-L6xS) to deliver the dual-processor architecture required for SIL 3 / PLe safety on the 1756 ControlLogix platform. Its safety memory matches the corresponding controller. Replacement battery 1756-BA2. Lifecycle status discontinued (June 1, 2017); functional replacement is 1756-L7SP..
MPN / SKU: 1756-LSP
1756-LSP Applications
This safety partner works alongside an original GuardLogix primary safety controller to form the two-processor architecture that certifies safety functions to SIL 3 and Performance Level e. It executes safety tasks independently and cross-checks results with the primary controller, and one partner is required per GuardLogix safety system. The module mounts in an adjacent chassis slot and communicates over the 1756 backplane, supporting CIP Safety I/O for machine and process safety. Its safety memory mirrors the paired controller. The part is discontinued and is functionally replaced by the 1756-L7SP; confirm the exact controller pairing against official documentation.
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