Manufacturer: SIEMENS Model: 6ES7138-4FB03-0 AB0 Module Type: Digital Input Module Number of Channels: 16 Channels Voltage Level: 24VDC Operating Temperature Range: -25 ° C to + 60 ° C Protection Level: IP20 Dimensions: 120mm X 90mm X 70mm Weight: About 0.5kg This SIEMENS 6ES7138-4FB03-0AB0 digital input module is designed for industrial automation with high reliability and stability. Its 16-channel design allows simultaneous acquisition of multiple field signals, which greatly improves the efficiency of data acquisition.The module uses 24VDC power supply, which is adaptable and can work stably in a wide range of voltages. In addition, the module is equipped with advanced electromagnetic compatibility (EMC) design to effectively prevent external interference and ensure the stability of system operation. The compact size design makes it easy to install in limited space, saving space without affecting the overall layout of the system.Through accurate signal conversion and processing, this module can significantly improve the response speed and accuracy of the automation control system, and is suitable for a variety of complex industrial environments.