Product Type: Analog Input Module Model: 6ES7231-5 QD30-0XB0 Brand: SIEMENS SIEMENS Power Requirements: 24VDC Number of Channels: 4 Analog Input Channels Accuracy Class: High Accuracy Operating Temperature Range: -25 ° C to + 70 ° C Protection Class: IP20 Weight: 0.207 kg Dimensions: Not available Communication Interface: Supports standard industrial communication protocols. This SIEMENS analog input module (Model 6ES7231-5QD30-0XB0) is part of the SIEMENS S7-1200 series and is designed for high-precision analog signal acquisition.Its design adopts advanced circuit technology and can operate stably in harsh industrial environment. The module supports multiple connection modes and can flexibly adapt to different application scenarios. In addition, it has excellent anti-interference ability to ensure the accuracy of data transmission. To use, simply install it correctly on the S7-1200 controller and configure it with the programming software.