What is the term used for a PLC program that puts all outputs in a start-up state and checks inputs before the process can safely restart?

The term "Initializing" refers to the process where a PLC (Programmable Logic Controller) program sets all outputs to a defined start-up state and verifies the status of inputs before allowing the system to resume operations safely. This step is crucial as it ensures that all components are in the correct state to prevent any unexpected behavior when the system starts up again.

During the initialization phase, the PLC may perform checks that include confirming that all necessary sensors are functioning properly and that outputs are set to a predefined safe state. This is a critical safety measure that acts as a safeguard against potential hazards that could arise from improper states in the system.

The other terms mentioned have different contexts: "Initial State" might refer to the condition of a system before any operations begin but doesn't encompass the actions of verification. "Boot Sequence" generally describes the process a device goes through to initialize hardware and load software, but it doesn't specifically focus on checking inputs or outputs in a safety context. "Power Check" typically pertains to confirming that power levels are adequate for operation rather than handling the logic and status of outputs and inputs comprehensively like initializing does. Thus, "Initializing" is the most appropriate term that encapsulates the required functionality of preparing a PLC system for operation.