Siemens 6ES7157-1AB00-0AB0 SIMATIC ET 200AL IM 157-1 PN PROFINET Remote I/O Interface Module

The Siemens 6ES7157-1AB00-0AB0 is the IM 157-1 PN interface module for the SIMATIC ET 200AL distributed I/O line, rated IP65/67 with two M12 D-coded PROFINET ports and an integrated switch. It supports isochronous real-time (IRT) cycles from 250 microseconds up to 128 ms, media redundancy (MRP/MRPD), and shared device operation across up to 4 IO controllers.

Technical Specifications

Selection Notes

The two M12 D-coded ports with an integrated switch let the 6ES7157-1AB00-0AB0 sit mid-line in a PROFINET ring without a separate switch, and MRP/MRPD keeps the station on the ring if one link fails. IRT down to 250 microseconds fits motion-oriented or tightly synchronized process cells; an application that only needs RT leaves that determinism unused but incurs no extra wiring cost. Shared device support for up to 4 IO controllers suits a station whose I/O must be split between a process PLC and a separate safety or diagnostics PLC.

Applications

PROFINET distributed I/O head module for SIMATIC ET 200AL stations in tight installation spaces - machine-level digital and analog I/O with IP65/67 protection for direct field mounting without a control cabinet.