Siemens 6ES7148-4FS00-0AB0 Analog Input Module

Siemens 6ES7148-4FS00-0AB0 is a fail-safe electronic I/O module for the ET 200 PRO family, enabling safe, PROFIsafe-controlled input and output in safety-critical automation tasks. It provides two safe digital inputs and three fail-safe PP-switching outputs for safe switching of the backplane busbars (2L+, F0, F1), all in a compact 45 mm-wide form factor designed to mount on the ET 200 PRO backplane and operate from 24 V DC. The module supports safety integrity up to Category 4 (EN 954-1), SIL3 (IEC 61508), and PLE (ISO 13849), making it suitable for high-assurance applications where monitored states must be preserved. Integrated into the SIMATIC ET 200 PRO ecosystem, it communicates via PROFIsafe to synchronize safety-related signals across the network, enabling reliable monitoring and safe actuation of protected circuits without sacrificing system density. With two digital inputs and three protective outputs, this module supports compact, safe I/O configurations for machines and plants requiring independent fault detection and fail-safe switching in industrial environments.