Siemens 6ES5315-8MA11 Programmable Logic Controller Module

Siemens 6ES5315-8MA11 is an IM connection module for the SIMATIC S5 family, specifically an IM 315 interface designed to attach to S5-100U/ET 100U/ET 200U controllers to provide a single ERW line connection. It is sold as a replacement part for legacy S5 installations and is compatible with S5-90/95 and S5-100 configurations. The part is catalogued under several cross-references, including SIE6ES53158MA11 and 6ES53158MA11. As a DC logic I/O module, it plugs into the backplane via the IM 315 interface, enabling connection of I/O devices to the CPU in older Siemens control systems without upgrading to a newer PLC platform. Typical use cases include retrofitting or maintaining aging S5 equipment in manufacturing lines where a single ERW line needs to be wired to the controller. The 6ES5315-8MA11 remains a common spare part in catalogs and distributor inventories for SIMATIC S5-era automation systems.