Siemens SIMATIC S7-400 6ES7431-7QH00-0AB0 SM 431 · AI 16 × 16 Bit · Analog Input Module Analog input module for S7-400 automation systems, with configurable measurement methods and diagnostic functions. Request a Quote Send the part number and your application details. Technical Specifications Model-specific Siemens reference data 6ES7431-7QH00-0AB0 / SM 431 TECHNICAL DATA · SECTION 5.23 01 / Product Identification & Channel Architecture Manufacturer Siemens Product family