Manufacturer: SIEMENS Model: 6ES7131-4FB00-0 AB0 Product Type: Analog Input Module Number of Channels: 4 Channels Voltage Range: 0-10 V or 0-20 mA Accuracy: ± 0.1% Operating Temperature Range: -25 ° C to + 60 ° C Protection Class: IP20 Communication Interface: PROFIBUSDP This model is manufactured by SIEMENS. The 6ES7131-4FB00-0AB0 digital input module is specially designed for industrial automation control systems.It adopts advanced digital signal processing technology, which can efficiently convert the analog signal of field equipment into digital signal, so as to facilitate the further data processing of PLC system. The module has built-in perfect protection mechanism to ensure stable operation in harsh environment. In addition, the module design is compact and easy to install, which is suitable for a variety of industrial application scenarios. Whether it is a manufacturing line or an energy management facility, this digital input module provides reliable signal acquisition support to help achieve efficient automation control.This module has eight independent digital input channels, which can meet the needs of most industrial applications. It supports the working voltage of 24VDC, and the maximum input current of each channel is 5ma, and the response time is less than 1 millisecond, which ensures the rapidity and accuracy of data acquisition. The module also has IP20 protection capability, which can prevent the invasion of dust and moisture to a certain extent, thus prolonging the service life. The overall size of the module is 110mm X 90mm X 70mm and the weight is about 0.2k G, which is convenient for installation and maintenance.