Product Overview

The SIEMENS 6ES5430-8MB11 is a high-density digital input module purpose-built for the SIMATIC S5 programmable logic controller (PLC) platform, offering 32 channels of galvanically isolated 24V DC input capability in a compact single-slot format. As part of the 8M series within the extensive S5 signal module portfolio, the SIEMENS 6ES5430-8MB11 provides an efficient solution for acquiring discrete signals from field devices such as limit switches, proximity sensors, pushbuttons, and selector switches across a broad range of industrial control applications . This module is fully compatible with multiple S5 platforms, including the S5-90U, S5-95U, S5-100U, S5-115U/F, S5-135U, and S5-150U, as well as ET 100U and ET 200U distributed I/O systems, making the SIEMENS 6ES5430-8MB11 an exceptionally versatile component for legacy system maintenance and expansion .

Engineered for environments where signal integrity and electrical isolation are paramount, the SIEMENS 6ES5430-8MB11 organizes its 32 inputs into four isolated groups of eight channels each, with galvanic isolation between groups and between the inputs and the backplane bus . This design ensures robust protection against interference and ground loops, a critical feature for industrial settings with complex grounding schemes or high electrical noise. The module accepts a wide input voltage range of 15 to 30V DC, with a typical current draw of approximately 7mA per channel at 24V DC, and features fixed input filtering with a delay of approximately 4.8ms for reliable signal debouncing . As the SIMATIC S5 product family has reached end-of-life status, the SIEMENS 6ES5430-8MB11 serves as an essential preservation component for facilities relying on these proven control systems for critical production and process operations.

Technical Specifications