100MM IP20 SIMATIC S7-1200 PLC 6ES7231-4HD32-0XB0 SM 1231

SIMATIC S7-1200 PLC 6ES7231-4HD32-0XB0 SM 1231

I. Product Description:

The SIMATIC 6ES7231-4HD32-0XB0 is an analog input expansion module for the SIMATIC SIMATIC S7-1200 series, commonly referred to as the SM 1231, AI 4x13-bit. It is primarily used to add analog signal acquisition capabilities to the S7-1200 PLC.

It features 4 analog input channels for differential voltage or current inputs.

Voltage: ±10 V, ±5 V, ±2.5 V

Current: 0–20 mA, 4–20 mA

II. Product Specifications:

SIMATIC 6ES7231-4HD32-0XB0｜SIMATIC S7-1200 SM 1231 Analog Input Module

Rated Supply Voltage: 24 V DC;
Permitted Supply Voltage Range: 20.4 to 28.8 V DC;
Voltage Input Ranges: ±10 V, ±5 V, ±2.5 V;
Current Input Ranges: 0–20 mA, 4–20 mA;
Resolution: 12 bit + sign, 13-bit ADC;
Input Resistance for Voltage Signals: ≥9 MΩ;
Input Resistance for Current Signals: 280 Ω;
Maximum Permissible Input Voltage: 35 V;
Maximum Permissible Input Current: 40 mA;
Conversion Time: Maximum 625 μs per channel;
Wire-Break Detection: Supported for applicable 4–20 mA input configurations;
Overrange / Underrange Detection: Supported;
Thermocouple Measurement: Not supported;
Resistance Thermometer Measurement: Not supported;
Resistance Measurement: Not supported;
Current Consumption: Approximately 45 mA at 24 V DC;
Backplane Bus Current Consumption: Approximately 80 mA at 5 V DC;
Typical Power Loss: 1.5 W;
Electrical Isolation: Analog channels are not individually galvanically isolated;
Engineering Software: STEP 7 / TIA Portal;
Configuration: Parameterizable through the TIA Portal engineering environment;
System Compatibility: SIMATIC S7-1200 Basic Controllers;
Mounting: Direct mounting to the right side of a compatible S7-1200 CPU or signal module;
Protection Rating: IP20;
Operating Temperature: -20 to 60 °C;
Storage / Transport Temperature: -40 to 70 °C;
Dimensions (W × H × D): Approximately 45 × 100 × 75 mm;
Net Weight: Approximately 152 g;
Typical Applications: Analog sensor signal acquisition, pressure measurement, flow measurement, level monitoring, process control, machine automation, industrial instrumentation, and analog signal processing in SIMATIC S7-1200 systems.Quantity 

III. Technical Parameters:

SIMATIC S7-1200, Analog input, SM 1231, 4 AI, +/-10 V, +/-5 V, +/-2.5 V, or 0-20 mA/4-20 mA, 12 bit+sign (13 bit ADC)

IV. Industries Served:

The SIMATIC 6ES7231-4HD32-0XB0 module is often integrated into automation systems for real-time data acquisition and process variable monitoring.

In automotive production lines, it is used to monitor key parameters such as speed and pressure during processes like welding and painting.

In the food and beverage, packaging, and machine tool industries, it is used to maintain optimal production conditions—for example, by precisely regulating the temperature of cooking kettles via PID control.

Energy and Mining: It can be used to monitor power generation and distribution systems, as well as to build safety early-warning and parameter monitoring systems in scenarios such as main mine drainage systems and offshore drilling platforms.

V. Customer Case Studies:

Issue 1: It is difficult to coordinate the old and new systems, making unified management unfeasible.

Issue 2: Equipment reliability is insufficient under extreme operating conditions, and the failure rate remains high.

Issue 3: Tight delivery schedules make it impossible to align with maintenance windows.

VI. FAQ:

1,How to buy the product?

Contact our sales professionals online. A variety of contact options are available: 

WhatsAPP: +8619731602085

WeChat: Susan20241118

E-mail: contact@szlyzn.com

Or click on the Contact Us page, enter your name, email, phone number and specific request, submit it to our customer service and we will contact you within 24 hours.

2,Are the products all genuine? Is the quality guaranteed?

Our products are 100% guaranteed quality, 100% guaranteed authentic, regular channel, you can buy with confidence. Each product can be checked for authenticity, all from major genuine brands, if you have any questions, please feel free to contact our after-sales service. 

3. What should I do if I can't find what I want?

You can do an exact/fuzzy search based on the product model or brand. If you still can't find it, you can feedback the model number or brand of the desired product to our sales staff. 

4. How is the product delivered? Is it safe?

Various delivery methods and regular delivery channels, we will make different packages for different products and strictly guarantee the safety of the products.

Ground, air and sea transportation

DHL/FedEx/UPS/EMS/SF Express/TNT/Depon Express... 

5. What are the payment methods?

01: Alipay payment: choose Alipay payment, the system will automatically generate the payment QR code, the customer opens the Alipay on the cell phone and scans the code to pay.

02: Online online banking: support more than 200 banks and financial institutions such as Industrial and Commercial Bank of China, Agricultural Bank of China, Bank of China, Construction Bank, Bank of Communications, Postal Savings Bank, etc., support credit card, savings card, CBI card, to fully meet the customer's payment needs.

03: Offline Payment: After choosing offline payment, customers can pay the payment to our corporate account through transfer, remittance and other offline payment methods. The account number can be viewed on the order payment page. The offline transfer amount and the order settlement amount must be the same.