logic control and protection system 逻辑控制保护系统
For the accelerator magnet power supply, usually the Programmable logic controller (PLC) is used to server as the controller for logic protection and control.
加速器磁铁电源的逻辑保护和控制一般通过可编程逻辑控制器PLC实现。
To guarantee the hoist safety running, several logic judgment and control methods are used in PLC software, besides hardware protection.
在硬件上除采用各种措施使系统能可靠工作外，在软件上也采用多种逻辑判断和控制的方法，以保证起升的安全。
As for the above-mentioned problems, the research puts forward to turn all circuit protection into negative logic control and has carried out theory analysis and practice.
针对数控设备的限位保护功能有些欠缺，容易发生超程故障等问题，提出采用把所有限位保护电路改为负逻辑控制，并对这一方案进行了理论分析和实践。
应用推荐