Siemens 6ES5385-8MA11 Simatic S5 Analog Input Module

Siemens 6ES5385-8MA11 is a SIMATIC S5 counter module (385A) designed for S5-90U, S5-95U, and S5-100U CPUs and compatibility with ET 100U and ET 200U configurations. It provides counting functionality with a maximum input frequency of 500 Hz, enabling precise pulse counting for positioning or event monitoring in legacy S5 installations. As a spare part for the S5 family, the 6ES5385-8MA11 is used to replace worn or failed 385A counter modules and integrates on the S5 backplane to report count results to the CPU for use in control logic. Typical applications include monitoring indexing, rotation, or process events where a stable count is required for subsequent control decisions. The model is documented as a 385A counter module, part number 6ES5385-8MA11, for S5-90U/-95U/-100U with ET 100U/ET 200U configurations, and features a counting frequency up to 500 Hz.