6ES7135-4GB01-0AB0 PLC I/O Module for use with SIMATIC ET 200S Series 81 x 15 x 52 mm Analogue 24 V dc. The Siemens SIMATIC ET 200S PLC digital I/O module is a 2 analogue output device. This electronic module is meant to be used with SIMATIC ET 200S series PLCs. It has various advanced features like galvanic isolation between the channels and the backplane bus, which make it an ideal expansion module for various applications.