Channel test involves which of the following?

Channel test involves which of the following?

• A. Introduction of a signal into the analog and bistable channels to verify operability
• B. Use of diagnostic programs to test digital computer hardware with simulated data
• C. Both A and B
• D. None of the above

Answer: (C)

Channel testing verifies that the signal paths used by the safety and monitoring channels are functioning correctly. This includes introducing a known signal into the analog channel to confirm proper response and accuracy, and applying a signal to the bistable channel to ensure correct switching and indication. In many reactor systems, testing also uses diagnostic software to run simulated data through the digital computer hardware, exercising processing, timing, and data handling to confirm the control logic works as intended. Because both the physical signal pathways (analog and bistable) and the digital processing side need to be validated, the combined approach best reflects what channel testing entails.

Channel testing verifies that the signal paths used by the safety and monitoring channels are functioning correctly. This includes introducing a known signal into the analog channel to confirm proper response and accuracy, and applying a signal to the bistable channel to ensure correct switching and indication. In many reactor systems, testing also uses diagnostic software to run simulated data through the digital computer hardware, exercising processing, timing, and data handling to confirm the control logic works as intended. Because both the physical signal pathways (analog and bistable) and the digital processing side need to be validated, the combined approach best reflects what channel testing entails.