Final answer:
To clear a DCS error, press the ACK (Acknowledge) button followed by the RESET or CLR (Clear) button. This procedure may vary, so operators should consult the system's manual for exact instructions.
Step-by-step explanation:
When a DCS error occurs, to clear the fault, you typically press the ACK (Acknowledge) button followed by the RESET or CLR (Clear) button. DCS stands for Distributed Control System, and it is widely used in industrial process control. It is essential for an operator to know how to respond to and clear faults to maintain the system's operational effectiveness. The exact keys or procedure may vary depending on the specific DCS system in use; therefore, it is crucial to refer to the user manual or system documentation for the precise steps for handling errors.