Siemens 6ES7155-5AA00-0AB0 SIMATIC ET 200MP. PROFINET IO device. IM 155-5 PN ST interface module for ET 200MP electronic modules; up to 12 I/O modules without power supply; up to 30 I/O modules with additional power supply; integrated 2-port switch; RJ45 shared device; MRP; IRT >=0.25 ms; isochronous mode. Firmware update; FSU I&M0…3 with 500 ms.