Siemens 6ES7131-4BF50-0AA0 Digital Input Electronic Module
Siemens 6ES7131-4BF50-0AA0 Digital Input Electronic Module
0.0
Points
Brand:Siemens Item No.:6ES7131-4BF50-0AA0 Product Origin:Germany Product Dimensions:15 × 81 × 52 mm Product Weight:0.041 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Siemens 6ES7131-4BF50-0AA0 Digital Input Electronic Module is part of the SIMATIC ET 200S distributed I/O system. It is designed to acquire discrete signals from industrial field devices and make them available to a higher-level PLC for machine control, equipment monitoring, and production automation.
The module provides eight 24 V DC source-type digital inputs in a compact 15 mm-wide format. Its IEC 61131 Type 1 input characteristics, individual green status LEDs, and support for suitable two-wire sensors make it useful for standard industrial signal acquisition. The module also supports isochronous operation when used in a compatible system configuration.
The 6ES7131-4BF50-0AA0 does not offer dedicated diagnostic functions or configurable input delays. Its fixed input response is intended for standard binary signal monitoring rather than applications that require advanced diagnostic reporting or adjustable filtering.
This model is listed as a spare-part product and has a product cancellation status. For legacy equipment maintenance, verify stock availability, exact part number, wiring requirements, and terminal module compatibility before ordering.
Technical Specifications
Parameter
Specification
Brand
Siemens
Model
6ES7131-4BF50-0AA0
Product Type
Digital Input Electronic Module
Product Family
SIMATIC ET 200S
Module Designation
8DI DC 24V SOURCE INPUT
Number of Digital Inputs
8
Input Type
Source input
Rated Input Voltage
24 V DC
Input Characteristic
IEC 61131 Type 1
Typical Input Current
6 mA at 24 V DC
Configurable Input Delay
No
Typical Input Delay
3 ms
Input Delay Range
2–4.5 ms
Two-Wire Sensor Support
Yes
Maximum Sensor Quiescent Current
1.5 mA
Diagnostic Function
No
Input Status Indicators
Green LED per channel
Channel-to-Channel Isolation
No
Isolation from Backplane Bus
Yes
Insulation Test Voltage
500 V DC
Reverse-Polarity Protection
Yes
Typical Power Dissipation
1.2 W
Maximum Shielded Cable Length
1,000 m
Maximum Unshielded Cable Length
600 m
Isochronous Operation
Supported
Module Width
15 mm
Dimensions (W × H × D)
15 × 81 × 52 mm
Dimensions (inches)
0.59 × 3.19 × 2.05 in
Weight (provided specification)
0.041 kg
Weight (provided specification, lb)
0.09 lb
Installation
Compatible SIMATIC ET 200S terminal module required
Product Lifecycle
Discontinued; listed as a spare part
Recommended Related Models
The following Siemens modules may be relevant to SIMATIC ET 200S installations. Their channel counts and electrical configurations vary, so verify the full technical specifications before selecting an alternative.
Model
Product Type
Typical Function
6ES7131-4BF50-0AA0
Digital Input Module
8-channel, 24 V DC source input
6ES7131-4BF00-0AA0
Digital Input Module
8-channel, 24 V DC digital input
6ES7131-4BD01-0AA0
Digital Input Module
4-channel standard digital input
6ES7131-4BD01-0AB0
Digital Input Module
4-channel high-feature digital input
6ES7132-4BB01-0AB0
Digital Output Module
Digital output control
6ES7193-4CA50-0AA0
Terminal Module
ET 200S connection and wiring
Popular Related Models
These additional Siemens automation components may be relevant to distributed I/O projects, industrial sensor integration, and control system maintenance.
Model
Product Category
Application
6ES7131-4BF50-0AA0
Digital Input Module
Eight-channel source-input signal acquisition
6ES7132-4BB01-0AB0
Digital Output Module
Digital actuator control
6ES7134-4JB01-0AB0
Analog Input Module
Analog sensor signal acquisition
6ES7135-4GB01-0AB0
Analog Output Module
Analog control signal output
6ES7138-4CA01-0AA0
Power Module
ET 200S station power management
6ES7193-4CB20-0AA0
Terminal Module
Distributed I/O connection and wiring
Ordering recommendation:Before purchasing the Siemens 6ES7131-4BF50-0AA0, confirm the exact catalog number, product condition, source-input wiring arrangement, and compatibility with the existing SIMATIC ET 200S station. As this model is discontinued, availability should also be confirmed for maintenance and replacement projects.
Applications
The Siemens 6ES7131-4BF50-0AA0 is a digital input electronic module designed for the SIMATIC ET 200S distributed I/O system. It provides eight 24 V DC source-type digital inputs for acquiring binary signals from industrial sensors and switching devices. The module transfers input states through the ET 200S backplane bus to a compatible automation controller.
Production line control: Detecting workpiece positions, equipment states, and machine operating conditions.
Industrial process monitoring: Collecting discrete signals for PLC-based logic and sequence control.
Material handling systems: Monitoring conveyor sensors and equipment status signals.
Distributed I/O expansion: Adding eight digital input channels to an existing SIMATIC ET 200S station.
Maintenance and spare-part replacement: Restoring digital signal acquisition in legacy control systems.
The module uses a source-input configuration, so the field-device wiring and signal polarity must follow the applicable Siemens connection diagram. Confirm the sensor type and electrical interface before installation.
Advantages
Eight digital input channels: Acquires multiple binary signals through one compact electronic module.
24 V DC operation: Supports standard industrial digital signal applications.
Source-input design: Provides a defined input arrangement for compatible field-device wiring.
Compact 15 mm width: Helps reduce space requirements in distributed I/O assemblies.
Individual channel indicators: Green LEDs display the status of each digital input.
IEC 61131 Type 1 characteristics: Supports compatible industrial digital input signals.
Electrical isolation: Isolates the input circuitry from the backplane bus.
Reverse-polarity protection: Helps protect the module against incorrect polarity within its specified electrical design.
Two-wire sensor support: Supports suitable two-wire sensors within the permitted electrical limits.
Synchronized operation: Supports isochronous mode in an appropriately configured automation system.
Technical FAQs
Q1: What is the Siemens 6ES7131-4BF50-0AA0?
It is a SIMATIC ET 200S digital input electronic module with eight 24 V DC source-type inputs.
Q2: How many digital inputs does the module provide?
It provides eight digital input channels for monitoring compatible binary field signals.
Q3: What does source input mean?
Source input describes the electrical arrangement of the input circuit. The field device and supply must be wired according to the module's specified source-input configuration. Incorrect polarity or wiring can prevent correct signal detection.
Q4: What is the rated input voltage?
The rated input voltage is 24 V DC. This module uses a source-input arrangement, so its signal polarity and voltage references differ from those of conventional sinking-input modules.
Q5: What is the typical input current?
The typical input current is approximately 6 mA per channel at 24 V DC, according to the module's technical documentation.
Q6: Does the module support configurable input delays?
No. The input delay is not parameterizable. The typical delay is approximately 3 ms, with a specified range of 2 to 4.5 ms.
Q7: Does the module provide diagnostic functions?
The module does not provide a dedicated diagnostic function. Individual green LEDs indicate the states of the digital input channels.
Q8: Can two-wire sensors be connected?
Yes. Suitable two-wire sensors can be connected if their electrical characteristics and wiring arrangement meet the module requirements. The maximum permissible sensor quiescent current is 1.5 mA.
Q9: Are the input channels electrically isolated from one another?
No. The input channels are not electrically isolated from each other. The digital input circuits are isolated from the backplane bus.
Q10: Is the 6ES7131-4BF50-0AA0 suitable for replacing another ET 200S input module?
It may be suitable when the existing configuration requires this specific eight-channel source-input module. Do not assume that it is interchangeable with every ET 200S digital input module. Verify input polarity, wiring, terminal module, and controller configuration before replacement.
