Description
DI 431 (S5-100U) — Digital I/O
Siemens · DI 431 (S5-100U) · 6ES5431-8FA11
Inventory part number: 6ES55431-8FA11 — corrected to 6ES5431-8FA11. See notes.
Description
CORRECTED PART NUMBER: the inventoried "6ES55431-8FA11" has an extra digit; the valid Siemens order number is 6ES5431-8FA11. This is the DI 431 digital input module for the S5-100U I/O system, providing 8 floating (optocoupler-isolated) 24 V DC digital inputs.
Key specifications
Parameter | Value |
Function | Digital input module, S5-100U |
Channels | 8 digital inputs |
Rated voltage | 24 V DC |
Isolation | Floating, optocoupler-isolated |
Mounting | S5-100U I/O rail-mount module |
Reference
Field | Value |
Manufacturer (OEM) | Siemens |
Model | DI 431 (S5-100U) |
Part number | 6ES5431-8FA11 |
Part number (as inventoried) | 6ES55431-8FA11 |
Category | Digital I/O |
System family | S5-100U |
GT stores quantity | 60 |
Data confidence | high |
Manuals filed (007 - Manuals)
- Manual STEP5 S5-100U English.PDF — S5-100U reference manual directly documents the 431 digital input module family
Notes
Typo correction applied per research brief and confirmed against Siemens parts catalog listings (6ES5431-8FA11 = 431 DI module, 8 inputs, 24 V DC, floating).
Source: Sohar 1 DCS field-component stores inventory (Total GT_BOP). Filed in the AI HW Knowledge Base.