The Allen-Bradley 1756-L55M14, part of the ControlLogix 5555 Series A, is a highly capable controller featuring 3.5 MB of data and logic memory complemented by 208 kB of I/O memory, though it lacks nonvolatile memory storage. Designed for seamless integration within a ControlLogix 1756 chassis, it supports a wide array of communication modes including SynchLink, DH-485, and EtherNet/IP and is compatible with redundant systems when connected via a ControlNet network. Boasting robust electrical specifications, this controller operates efficiently with a power dissipation of 5.7 W, while ensuring durable performance across a temperature range of 0 to 60 °C, backed by excellent resistance to shock and vibration, making it suitable for demanding industrial environments.
