Monitoring industrial computer-controlled process contg. redundant regulators - checking functioning and error flags of controllers and computer to activate electronic, optical of acoustic fault indicator when computer or controller drops out

摘要

The monitoring process uses a computer and linked regulator backed up by two redundant computer-controlled regulators. Each regulator is repeatedly and sequentially checked for correct operation. If one regulator system fails, an electronic, optical and or acoustic warning is triggered. ADVANTAGE - Monitors correct operation of industrial process to switch out defective control system, enhancing system reliability.