SIEMENS 6ES7231-0HC22-0XA8 Analog Input Module – S7-200 SMART Series
When an analog input module fails on the production floor, the consequences are immediate and severe. Process variables go blind — temperature readings vanish, pressure signals drop to zero, flow rates become unknown. PLCs lose the real-world data they need to make control decisions, forcing operators into manual override or emergency shutdown. Downtime accumulates by the minute, and in continuous-process industries, even a brief interruption can mean scrapped batches, equipment damage, or safety incidents. The SIEMENS 6ES7231-0HC22-0XA8 is the precision analog front-end that keeps your control loop intact — delivering reliable, high-resolution signal acquisition when it matters most.
The 6ES7231-0HC22-0XA8 is a 4-channel analog input expansion module purpose-built for the SIEMENS SIMATIC S7-200 SMART PLC platform — one of the most widely deployed compact PLC families in global manufacturing. Within the S7-200 SMART ecosystem, this module occupies a critical role: it bridges the physical world of sensors and transducers to the digital intelligence of the CPU. Trusted by OEMs, system integrators, and end-users across Asia, Europe, and the Americas, the S7-200 SMART series commands a dominant position in the small-to-mid-range automation segment, and the 6ES7231-0HC22-0XA8 is a cornerstone expansion component for any analog-intensive application.
Technical Specifications
- Part Number: 6ES7231-0HC22-0XA8
- Series: SIMATIC S7-200 SMART
- Module Type: Analog Input Expansion Module
- Number of Analog Inputs: 4 channels
- Input Signal Types: Voltage and Current (configurable per channel)
- Resolution: 12-bit
- Manufacturer: SIEMENS AG
- Compatible CPU: S7-200 SMART CPU series
- Form Factor: Expansion module (right-side bus connection)
- Weight: Approx. 100 g
Note: All specifications are sourced from official SIEMENS documentation. Contact us to verify compatibility with your specific CPU firmware version.
Key Features & Benefits
- 4 Independent Analog Input Channels — Simultaneously acquire signals from multiple sensors without additional hardware, reducing panel footprint and wiring complexity.
- 12-Bit Resolution — Delivers fine-grained measurement accuracy essential for closed-loop PID control, flow metering, and precision temperature regulation.
- Voltage & Current Input Support — Configurable input types accommodate the widest range of industrial sensors and transmitters (0–10 V, 4–20 mA, etc.).
- Seamless S7-200 SMART Integration — Plug-and-play expansion via the right-side bus connector; recognized automatically by STEP 7-Micro/WIN SMART software.
- Compact DIN-Rail Design — Space-efficient form factor fits standard control cabinets without requiring additional mounting hardware.
- SIEMENS Quality & Reliability — Engineered to IEC/EN 61131-2 standards, rated for continuous industrial operation in demanding environments.
- Long Product Lifecycle — S7-200 SMART modules maintain backward compatibility, protecting your automation investment over multi-year production runs.
Industry & Equipment Applications
- Food & Beverage Processing — Temperature and pressure monitoring in pasteurization, mixing, and filling lines.
- Water & Wastewater Treatment — Flow rate, pH, and level measurement in pump stations and filtration systems.
- HVAC & Building Automation — Duct pressure, humidity, and temperature acquisition for energy-efficient climate control.
- Packaging Machinery — Tension control, web guiding, and fill-level verification on high-speed packaging lines.
- Chemical & Pharmaceutical — Reactor temperature and pressure monitoring in batch and continuous processes.
- OEM Machine Building — Embedded in custom machinery where compact, reliable analog acquisition is required.
- Energy & Utilities — Power quality monitoring, generator load sensing, and substation automation.
System Integration & Compatible Parts
The 6ES7231-0HC22-0XA8 is designed to work within the complete SIMATIC S7-200 SMART ecosystem. Typical system configurations include:
- Compatible CPUs: S7-200 SMART CPU SR20, SR30, SR40, SR60, ST20, ST30, ST40, ST60 and related variants
- Programming Software: STEP 7-Micro/WIN SMART V2.x and above
- Digital I/O Expansion: 6ES7222-1BF22-0XA8 (8DO), 6ES7221-1BF22-0XA8 (8DI), and other EM series modules
- Analog Output Modules: 6ES7232-0HB22-0XA8 (2AO) for closed-loop control applications
- Communication Modules: EM DP01 PROFIBUS-DP, EM AE04 Ethernet expansion
- Power Supply: Standard 24 VDC supplied via CPU bus — no separate PSU required for the expansion module
Need help designing a complete S7-200 SMART system? Contact our engineering team for a free BOM review.
Our Quality Assurance Process
At Konmask.com, every SIEMENS module we supply undergoes a structured verification process before shipment:
- Source Verification — We source exclusively from authorized distributors and traceable supply chains. Counterfeit parts are a real risk in the industrial automation market; we take this seriously.
- Visual & Physical Inspection — Each unit is inspected for label authenticity, connector integrity, housing condition, and date code consistency.
- Documentation Package — Original packaging, CE/UL markings, and manufacturer documentation are verified and included where available.
- Functional Testing (on request) — For large orders or critical applications, functional bench testing can be arranged prior to shipment.
- Secure Packaging — Anti-static packaging and shock-absorbing materials protect modules during international transit.
How to Order
- Submit an Inquiry — Use the contact form or email support@konmask.com with your required quantity and delivery timeline.
- Receive a Quotation — Our team will respond within 1 business day with pricing, lead time, and shipping options.
- Confirm & Pay — We accept T/T bank transfer, PayPal, and other B2B payment methods. Proforma invoice provided upon request.
- Shipment & Tracking — Orders are dispatched via DHL, FedEx, or UPS Express. Full tracking information provided at shipment.
- After-Sales Support — Our technical team is available post-delivery for installation guidance and compatibility questions.
Why Choose Konmask.com?
- ✅ Specialized in Industrial Automation Components — PLC modules, DCS cards, HMI panels, drives, and more from leading global brands.
- ✅ Global Shipping — We ship to 50+ countries with reliable express logistics and full customs documentation support.
- ✅ Responsive B2B Service — Dedicated account managers for OEMs, system integrators, and MRO procurement teams.
- ✅ Competitive Pricing — Direct sourcing relationships enable us to offer market-competitive pricing on both standard and hard-to-find parts.
- ✅ Technical Expertise — Our team includes experienced automation engineers who can advise on compatibility, substitution, and system design.
- ✅ Transparent Supply Chain — We provide full traceability documentation on request, including distributor certificates and test reports.
Frequently Asked Questions
Q: Is the 6ES7231-0HC22-0XA8 compatible with the S7-200 (classic) PLC?
A: No. The 6ES7231-0HC22-0XA8 is designed specifically for the S7-200 SMART platform. It is not electrically or mechanically compatible with the original S7-200 series. Please verify your CPU model before ordering.
Q: How many analog input modules can I connect to one S7-200 SMART CPU?
A: The S7-200 SMART CPU supports up to 6 expansion modules in total (digital and analog combined), subject to the maximum I/O point limits of your specific CPU model. Consult the S7-200 SMART system manual for exact expansion rules.
Q: What input signal ranges does this module support?
A: The 6ES7231-0HC22-0XA8 supports standard industrial analog signal ranges including voltage (e.g., 0–10 V) and current (e.g., 4–20 mA) inputs. Refer to the official SIEMENS datasheet for the complete list of configurable ranges per channel.
Q: Do you supply new or refurbished units?
A: We supply both new (factory-sealed) and tested-used units depending on availability and customer requirements. The condition is clearly stated in the quotation. All units pass our quality inspection process regardless of condition.
Q: Can you provide a certificate of conformity or test report?
A: Yes. Documentation packages including certificates of conformity, inspection reports, and distributor traceability documents are available upon request for qualifying orders.
Q: What is the lead time for this part?
A: Lead time varies by stock availability. In-stock items typically ship within 1–3 business days. For out-of-stock items, our team will provide an accurate lead time estimate in the quotation.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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