Manufacturer: SIEMENS Product Model: 6 ES7-221-1BH30-0XB0 Product Type: Digital Input Module Number of Channels: 8 Input Voltage Range: 24VDC Response Time: Less than 1 millisecond Protection Class: IP20 Operating Temperature Range: -25 ° C to + 60 ° C Storage Temperature Range: -40 ° C to + 85 ° C Net Weight: 0.12 kg Dimensions (W X H X D): 52mm X 80mm X 90mm The SIEMENS digital input module is a high-performance device designed for industrial environments with eight independent digital input channels that can effectively handle input signals up to 24 VDC.Designed for rugged operation in extreme temperatures from -25 ° C to + 60 ° C, it is suitable for a variety of harsh operating environments. With a compact design and dimensions of only 52.5mm X 80mm X 90mm, the module is easy to install on standard rails, saving space while ensuring efficient operation of the system. In addition, the module also has IP20 level protection capability, which can effectively prevent the invasion of dust and small particles, and ensure the safe operation of internal electronic components.Through the use of this module, users can easily achieve real-time monitoring of the status of field equipment, improve production efficiency and system reliability.