Siemens 6ES7155-6AU00-0BN0 Programmable Logic Controller Module

The Siemens 6ES7155-6AU00-0BN0 is a SIMATIC ET 200SP PROFINET interface module (IM 155-6PN ST standard) for the ET 200SP distributed IO system, delivering a built-in server module and support for up to 32 I/O modules in a single stack. It is powered from 24 V DC (nominal) with a permitted range of 19.2–28.8 V, and provides a PROFINET interface with two ports for network connectivity. Its compact footprint measures 50 x 117 x 74 mm and it weighs 147 g, making it suitable for space-constrained installations; the unit supports single hot swapping during operation and can be configured with STEP 7 and TIA Portal from V13 SP1. The PROFINET configuration uses GSD version 2.3, ensuring compatibility with standard Siemens automation architectures. Note that 6ES7155-6AU00-0BN0 has been discontinued, with Siemens listing a successor model 6ES7155-6AU02-0BN0 in its catalog.