How to use the airtight leak detector, the airtight leak detector has the advantages of fast inflation, stability and high detection efficiency. In order to ensure product quality and avoid the risk of product being reca...　

After nearly half a year's efforts, the airtight automation test project has been successfully launched in Dahua Technology Co., LTD., and the original equipment has also been upgraded with software, realizing the one-key delivery of airtight parameters, centralized management, MES system for...　

Although many names such as relays, timers and counters are often used in the ladder diagram program used by PLC, the PLC does not physically have these hardwares, but uses memory and programming to do logic control edit...　

When the PLC is put into operation, its working process is generally divided into three stages, namely input sampling, user program execution and output refresh. Completing the above three stages is called a scan cycle. ...　

Programmable Logic Controller (PLC for short), a digital electronic device with a microprocessor, is a digital logic controller used for automatic control, which can load control instructions into memory for storage and ...