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Siemens SIMATIC S7-400 SM 431 Analog Input Module 6ES7431-7KF00-0AB0
Manufacturer: Siemens
Condition: Brand New
Lead Time: In Stock
Origin: Germany
Warranty: 12 Months
Email: [email protected]
whatsApp: +86-18150117685
- Overview
- Product Overview
- Key Functions
- Official Specifications
- Frequently Asked Questions
- Compatibility & Ordering Notes
- Hot Selling Models
- Recommended Products
Overview
SIEMENS · SIMATIC S7-400
6ES7431-7KF00-0AB0 SIMATIC S7-400 SM 431 Analog Input Module
The SM 431 provides eight isolated analog inputs for voltage, current and thermocouple measurement with 16-bit resolution and a 20 ms conversion time.
At a Glance
| Brand | Siemens |
|---|---|
| Model | 6ES7431-7KF00-0AB0 |
| Product Type | eight-channel isolated analog input module |
| Core Function | Measures voltage, current and thermocouple signals with 16-bit resolution |
| Application or Compatible Series | S7-400 analog acquisition requiring diagnostics and process alarms |
Exact Identification
Match 6ES7431-7KF00-0AB0 character by character and confirm the complete SIMATIC S7-400 SM 431 Analog Input Module designation.
Interface Arrangement
Confirm the installed supply, ports, field connections and required accessories before wiring the replacement.
Configuration Check
Preserve the approved engineering project, network parameters and application data used by the installed system.
Product Overview
The SM 431 provides eight isolated analog inputs for voltage, current and thermocouple measurement with 16-bit resolution and a 20 ms conversion time.
One module handles voltage, current and thermocouple input ranges. Sixteen-bit conversion supports precise process measurement. Diagnostics and alarms help identify channel and process conditions.
Key Functions
Flexible Signal Measurement
One module handles voltage, current and thermocouple input ranges.
High-Resolution Acquisition
Sixteen-bit conversion supports precise process measurement.
Integrated Fault Reporting
Diagnostics and alarms help identify channel and process conditions.
Official Specifications
| Analog Inputs | 8 |
|---|---|
| Resolution | 16 bit |
| Supported Voltage Measurement | Yes |
| Supported Current Measurement | Yes |
| Thermocouple Measurement | Yes |
| Resistance Thermometer Input | Not supported |
| Channel Isolation | Inputs isolated with individual rooting |
| Conversion Time | 20 ms |
| Diagnostics | Supported |
| Process Alarm | Supported |
| Maximum Backplane Current at 5 V | 1,200 mA |
| Typical Power Loss | 4.6 W |
| Voltage Input Destruction Limit | 35 V continuous; 75 V for maximum 1 s |
| Current Input Destruction Limit | 32 mA |
Frequently Asked Questions
What should an engineer verify about analog inputs before replacing 6ES7431-7KF00-0AB0?
Confirm 8 and compare it with the installed hardware, wiring and saved configuration before removal.
How should resolution be matched when commissioning 6ES7431-7KF00-0AB0?
Use 16 bit, then retain the matching interface, project and parameter settings during commissioning.
Is 6ES7431-7KF00-0AB0 suitable when the project requires the stated supported voltage measurement?
It supports Yes; the complete system must also meet the electrical, mechanical and engineering requirements.
What installation check applies to supported current measurement on 6ES7431-7KF00-0AB0?
Verify Yes, complete the associated wiring or configuration checks and record the result before startup.
Can 6ES7431-7KF00-0AB0 be substituted without confirming thermocouple measurement?
No. Confirm Yes together with the connector arrangement and project settings before approving a replacement.
Why does resistance thermometer input matter when integrating 6ES7431-7KF00-0AB0?
The required condition is Not supported; a mismatch can prevent communication, correct control or safe operation.
What should be tested for channel isolation after installing 6ES7431-7KF00-0AB0?
Test operation with Inputs isolated with individual rooting, review diagnostics and complete the required functional and safety checks before service.
Compatibility & Ordering Notes
Compatibility Checklist
- Match analog inputs (8) to the installed system.
- Verify resolution (16 bit) before changing wiring or configuration.
- Back up all available project, parameter and network data, then complete the required functional and safety checks.
