Siemens SES7 231-4HD32-0XB0 S7-1200 Analog input module SM 1231
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Siemens 6ES7 231‑4HD32‑0XB0 SIMATIC S7‑1200 SM 1231 Analog Input Module
Product Overview
The Siemens 6ES7 231‑4HD32‑0XB0 is an SM 1231 high‑precision analog input expansion module for the SIMATIC S7‑1200 PLC series. It is designed to acquire standard voltage and current analog signals from industrial field sensors and transmitters, converting continuous physical signals into digital data for S7‑1200 CPU processing. This module expands the analog signal acquisition capacity of the control system, featuring high‑resolution conversion, channel‑level diagnostics, and strong anti‑interference performance. It is widely used in temperature, pressure, flow, liquid‑level and weight measurement applications in machinery manufacturing, water treatment, HVAC and small‑to‑medium process automation systems.
Main Functions
- Multi‑range Analog Signal Collection
Supports standard voltage and current input signals to connect various industrial sensors and measuring transmitters.
- High‑precision A/D Conversion
Provides accurate analog‑to‑digital conversion to ensure reliable measurement results for industrial closed‑loop control.
- Channel‑level Fault Diagnosis
Monitors open‑circuit, short‑circuit, over‑range and under‑range conditions for each channel, and transmits diagnostic information to the CPU in real time.
- Independent Channel Configuration
Allows separate parameter setting of signal type, measurement range and filter time for each channel via TIA Portal software.
- Galvanic Isolation Protection
Isolates field‑side circuits from the PLC internal bus to prevent damage caused by ground potential differences and electromagnetic noise.
- Modular System Expansion
Plugs directly into the S7‑1200 backplane bus, enabling flexible expansion of analog input points without extra wiring.
Technical Characteristics
- Compact modular design suitable for standard DIN‑rail mounting inside electrical control cabinets.
- High‑resolution conversion for stable acquisition of weak industrial analog signals.
- Industrial‑grade electromagnetic compatibility for reliable operation in harsh factory environments.
- Low power consumption, supporting long‑term continuous 24‑hour operation.
- Full compatibility with all S7‑1200 CPU models and Totally Integrated Automation Portal software.
- Rugged mechanical structure with vibration and shock resistance for on‑site industrial use.
Technical Specifications
表格
| Item | Specification |
|---|---|
| Model Number | 6ES7 231‑4HD32‑0XB0 |
| Module Type | SM 1231, 4‑channel analog input module |
| Supported Input Signals | Voltage, Current |
| Resolution | 13‑bit + sign |
| Galvanic Isolation | Yes, between field side and backplane bus |
| Diagnostics | Open‑circuit, short‑circuit, over‑range, under‑range per channel |
| Protection Class | IP20 |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | −40 °C to +85 °C |
| Compatible System | SIMATIC S7‑1200 PLC series |
| Programming Software | TIA Portal |
| Mounting Type | Standard DIN‑rail mounting |
Product Dimensions and Weight
Overall Dimensions (Width × Height × Depth)
- Module Size: 45 mm × 100 mm × 75 mm
Weight
- Net Weight: Approximately 0.14 kg
- Gross Weight (with standard packaging): Approximately 0.19 kg
WHO WE ARE
About us
Located in Kunshan, China, Atifts Technology Co., Ltd. is a well-known enterprise specializing in electronic components distribution. We specialize in the sales of global brands of industrial automation components, with a wealth of experience in foreign product agents, and many of the world's leading manufacturers such as Keens, Schneider, SMC, ABB, Siemens, and other world-renowned manufacturers to establish a long-term and stable relations of cooperation.
Atifts Technology Co., Ltd. @ 2024
Over the years, we have always adhered to the "pioneering, pragmatic, standardized, innovative" management philosophy, and constantly promote the close integration of products and market demand. We firmly believe that only by constantly exploring new market areas, doing a good job in every detail, standardizing business processes, and continuously innovating products and services can we ensure that our products are more adaptable to market changes and meet the diversified needs of our customers.
Since the founding of the company, we have always adhered to the core concept of "survival by quality", and are committed to providing customers with high-quality electronic components. At the same time, we take specialized R & D manufacturing as the goal, market-oriented development strategy to ensure that our products are always in the forefront of the industry.
With excellent product quality, professional technical service and good market reputation, Kunshan Autofits Technology Co.,Ltd. has won the trust and support of our customers. We look forward to working with more partners hand in hand, to achieve long-term win-win relationship, and jointly promote the prosperity of the electronic components industry.
Where is your company located?
We are located next to Shanghai, the largest city in China, and Kunshan, the first economic county in China. With convenient transportation and developed logistics, it provides a good geographical advantage for our electronic components sales business.
What types of electronic components does your company mainly sell?
We are committed to providing many types and brands of electronic components, including but not limited to Sensors, Switches & Relays, Connectors, Circuit Protectio, Power Supplier & Cable, etc. We have established relationships with many well-known electronic component manufacturers. We have established long-term and stable relationships with many well-known electronic component manufacturers to ensure that the products we sell are of reliable quality and reasonable price.
What are the prices of your products?
Our product prices vary according to market conditions and product models. We are committed to providing high quality electronic components at fair and reasonable prices, and offer our customers a variety of incentives and flexible purchasing methods.
How to purchase your electronic components?
You can contact our customer service staff directly by phone, whatsapp, email, our official website. We support a variety of payment methods, and provide you with fast and safe logistics and distribution services.
How do you guarantee the quality of your products?
We attach great importance to product quality, all the electronic components we sell come from regular channels and undergo strict quality testing. We promise to provide customers with high-quality electronic components, and provide perfect after-sales service to ensure that customers have no worries in the process of use.
If I am not satisfied with the electronic components I purchased, can I return them?
We provide perfect after-sales service, if you are not satisfied with the purchased electronic components, you can return or exchange them within the specified time. Please refer to our official website or consult our customer service staff for the specific return policy and process.
Can your company provide technical support and solutions?
We have a professional technical team that can provide technical support and solutions for our customers. Whether you encounter any problems in choosing or using the products, we will be happy to answer your questions and provide professional technical support.
How to contact your customer service?
You can contact our customer service personnel through the online customer service system on our official website, telephone, e-mail or social media platforms. Our customer service staff will provide you with professional services and answer any questions you may have.
Does your company often organize promotional activities?
In order to give back to our customers, we will organize various promotions from time to time, including discounts, full reductions, giveaways and so on. Please keep an eye on our official website or social media platforms to stay up-to-date with the latest promotions.
