CP-9200SH/SVA模块备件使用授权

高可靠性是电气控制设备的关键性能。PLC由于采用现代大规模集成电路技术，采用严格的生产工艺制造，内部电路采取了 的抗干扰技术，具有很高的可靠性。使用PLC构成控制系统，和同等规模的继电接触器系统相比，电气接线及开关接点已减少到数百甚至数千分之一，故障也就大大降低。此外，PLC带有硬件故障自我检测功能，出现故障时可及时发出警报信息。在应用软件中，应用者还可以编入外围器件的故障自诊断程序，使系统中除PLC以外的电路及设备也获得故障自诊断保护。这样，整个系统将极高的可靠性。

High reliability is the key performance of electrical control equipment. PLC adopts modern large-scale integrated circuit technology and strict production process. Its internal circuit adopts anti-interference technology, which has high reliability. Using PLC to form the control system, compared with the relay contactor system of the same scale, the electrical wiring and switch contacts have been reduced to hundreds or even thousands of times, and the fault has been greatly reduced. In addition, PLC has the function of hardware fault self-detection, which can send out alarm information in time when there is a fault. In the application software, the user can also program the fault self diagnosis program of peripheral devices, so that the circuits and equipment other than PLC in the system can also obtain fault self diagnosis protection. In this way, the whole system will be highly reliable.