Siemens 6ES7526-1BH00-0AB0 Digital Input Module

Siemens 6ES7526-1BH00-0AB0 is a fail-safe digital input module for the SIMATIC S7-1500 family that provides 16 channels of 24 V DC inputs with PROFIsafe, designed for safety-critical automation tasks. This F-DI module integrates into Siemens’ ET 200MP safety I/O ecosystem to monitor devices such as emergency stop buttons, safety interlocks, and protective doors, delivering signals to a safety CPU through the PROFIsafe protocol. The module occupies a compact 35 mm width, making it suitable for dense safety architectures on a standard 35 mm DIN rail. It supports high-integrity safety performance, rated up to PL E (ISO 13849-1) and SIL 3 (IEC 61508), offering robust fault-detection and reliable operation in demanding environments. Each input is wired for 24 V DC signaling and benefits from protective features inherent to Siemens’ fail-safe design, including electronic short-circuit protection as part of its safety pathway. As part of Siemens’ S7-1500 safety portfolio, the 6ES7526-1BH00-0AB0 works with compatible safety CPUs and configuration tools to enable certified monitoring of digital safety signals and seamless integration into PROFINET-based networks where applicable.