Siemens 6ES7155-6AU01-0BN0 PROFINET Interface Module

Siemens 6ES7155-6AU01-0BN0 is the IM 155-6 PN ST PROFINET interface module for the SIMATIC ET 200SP distributed I/O system, serving as the PROFINET IO link at the head of an ET 200SP station. It provides two Ethernet ports (RJ-45) for PROFINET connectivity, supporting 10/100 Mbps with auto-negotiation and auto-MDIX for easy daisy-chaining or uplink to the controller, and it can be used with the standard BA bus adapter (BA 2x RJ45) to connect the ET 200SP rack to the PROFINET network. As a PN ST interface, it enables PROFINET IO communication and includes features such as IRT, PROFIenergy, startup priority, and Shared Device, per Siemens documentation. This interface module is designed to connect ET 200SP distributed I/O to a PROFINET network, making it a common choice for automation tasks that require reliable, scalable field-network connectivity at the IO station head, including manufacturing lines and packaging equipment that rely on distributed I/O.