Siemens 6ES5241-1AA11 Programmable Logic Controller Module

Siemens 6ES5241-1AA11 is a two‑channel IP241 digital position decoder module for the SIMATIC S5 family. It serves as the IP241 interface that decodes position information from a compatible position transducer and transfers the two independent position values into the PLC, making it suitable for motion and process control tasks that rely on precise feedback. Marketed as the basic module 1P 241, its ordering designation is 6ES5 241‑1AA11, and firmware version A07 or later is supported. In operation it uses the actual value transfer mode to the PLC via switches S5.1 and S5.2, which governs how position data is presented to the controller. Designed for integration with older Siemens automation architectures, this module enables digital interpretation of position signals within the S5 system and can be used in applications such as automated machines or packaging lines where two separate encoder channels provide feedback to one S5 controller.