Number of input channels: 16 Voltage range: 24VDC Response time: less than 1ms Protection class: IP20 Operating temperature range: -25 ° C to + 60 ° C Storage temperature range: -40 ° C to + 85 ° C Weight: approx. 130g Dimensions: W X H X D: 52.8mm X 90mm X 85mm The SIEMENS 6ES7321-7BH01-0AB0 digital input module is a high-performance industrial automation device designed for a variety of industrial application scenarios.It has 16 independent input channels, which can process the sensor signal under 24 V DC voltage. The maximum current of each channel can reach 0. 5A, and the response time is less than 1ms, which ensures efficient signal transmission and processing speed. The module adopts advanced circuit design, has excellent anti-interference ability, and can operate stably in harsh industrial environment. The protection grade reaches IP20, and it is suitable to be installed in the control cabinet.With an operating temperature range of -25 ° C to + 60 ° C and a storage temperature range of -40 ° C to + 85 ° C, it is highly adaptable and works well in both the cold north and the hot south. Through seamless integration with PLC system, the module can accurately collect and process various sensor signals, and provide a solid guarantee for the efficient operation of industrial automation system.