Which statement regarding E-Stop priority is true?

• A. E-Stop prompts have no priority
• B. E-Stop prompts only take priority during startup
• C. E-Stop prompts take priority over all other information prompts
• D. E-Stop prompts are only logged in the event history

Answer: (C)

Emergency-stop prompts have the highest priority in the control system. When an E-Stop is activated, safety-critical behavior demands that all motion and potentially hazardous operations halt immediately and the operator is alerted without delay. To ensure this, the E-Stop prompt takes precedence over every other message or prompt the controller might display, interrupting ongoing prompts to demand immediate attention. That’s why the correct statement is that E-Stop prompts take priority over all other information prompts. They aren’t limited to startup, nor are they merely logged in event history; they require immediate action and visibility at the moment the E-Stop is activated.