Siemens 6ES7134-4GB51-0AB0 Analog Input Module

Siemens 6ES7134-4GB51-0AB0 analog input module is a SIMATIC ET200S device with 2 AI channels for 4–20 mA signals from 2-wire transducers, delivering 14-bit resolution and a 1 ms cycle time, all in a 15 mm wide module. It’s designed for distributed PLC I/O and is commonly installed in ET200S stations across manufacturing lines, process automation systems, and industrial control panels to capture analog signals from sensors such as temperature, pressure, and flow transmitters. With DIN-rail mounting for ET200S station integration and an SF LED diagnostic for group fault indication, this module integrates into SIMATIC ET200S distributed I/O architectures. Note that the part is discontinued, though spare part support is available, and Siemens lists common replacements including 6ES7134-4GB52-0AB0, 6ES7134-4JB51-0AB0, and 6ES7134-4GB50-0AB0.