Control method and device of control equipment and security level control system

The invention discloses a control method and device of control equipment and a safety level control system.The method is applied to the safety level control system.The method comprises the steps that target control equipment is determined, and the target control equipment is first type control equipment with safety interlocking or second type control equipment with safety interlocking; under the condition that the number of the first type of instruments in the safety interlocking of the target control equipment is smaller than p, the number of the first type of instruments in the safety interlocking of the target control equipment is increased to p; and controlling the target control equipment through the detection parameters of the p first-class instruments interlocked with the target control equipment. And the safety and the reliability of the safety level control system are improved. 本发明公开了一种控制设备的控制方法、装置和安全级控制系统，该方法应用于安全级控制系统，包括：确定目标控制设备，所述目标控制设备为具有安全联锁的第一类控制设备或者具有安全联锁的第二类控制设备；在所述目标控制设备的安全联锁中第一类仪表的数量小于p的情况