Top 10 facts about the world. Throughout history, storytellers, playwrights and writers of all kinds have woven tales of terrible deeds, tragedies, courage, and conquering. In each case, the story has a main character, sometimes called a protagonist.
HP Smart Array controllers store a redundant copy of the controller firmware image to protect against data. corruption. If the active firmware image becomes corrupt, Smart Array controllers use the redundant. firmware image and continue operating.
A programmable logic controller (PLC) is an industrial solid-state computer that monitors inputs and outputs, and makes logic-based decisions for automated processes or machines. 1. The image above is an Allen-Bradley PLC rack, a common example of a PLC setup that includes a CPU, analog inputs, analog outputs, and dc outputs. PLCs were introduced in the late 1960s by inventor Richard Morley to provide the same functions as relay logic systems.