Siemens PPX:RTU-A235 Simatic 4-Ch Analog Expansion Module

Siemens PPX:RTU-A235 SIMATIC 4-Ch Analog Expansion Module is a four-channel analog input expansion accessory for SIMATIC RTU systems. Designed to extend the available analog I/O on a PPX RTU during remote monitoring and control tasks, the module plugs into the SIMATIC RTU architecture to provide additional input points for sensing process variables. The RTU-A235 is identified by the part number RTU-A235 and is intended for integration within the Siemens PPX RTU ecosystem, enabling configuration and data collection of four simultaneous analog signals from field devices. Typically installed to broaden measurement capability for sensors such as temperature, pressure, flow, or level, it supports integration with the standard Siemens automation software tools used to configure, map, and read analog signals from the extended I/O. The module's four-channel analog input design supports concurrent sampling and data transfer within a Siemens automation environment, helping to scale monitoring and control tasks across distributed points in process or manufacturing settings.