SIEMENS 6ES7288-3AR04-0AA0 Analog Input Module – S7-200 SMART Series
Imagine a critical process line — a chemical dosing pump, a temperature-controlled furnace, or a pressure-regulated hydraulic system — suddenly losing its ability to read real-world sensor signals. Without a reliable analog input module, the PLC becomes blind: it cannot measure, cannot regulate, and cannot protect. Production halts, alarms cascade, and the cost of downtime climbs by the minute. The SIEMENS 6ES7288-3AR04-0AA0 is the precision interface that prevents exactly this scenario, converting continuous physical signals from field instruments into accurate digital values that the S7-200 SMART CPU can act upon in real time.
Within the S7-200 SMART expansion module lineup, the 6ES7288-3AR04-0AA0 occupies the role of the high-channel-density analog input solution — delivering 4 analog input channels in a compact DIN-rail form factor. The S7-200 SMART platform is one of Siemens’ most widely deployed compact PLC families globally, trusted across Asia-Pacific, Eastern Europe, and emerging industrial markets for its balance of performance, connectivity, and cost-efficiency. This module extends that platform’s sensing capability to meet the demands of modern process and discrete manufacturing environments.
Technical Specifications
- Part Number: 6ES7288-3AR04-0AA0
- Series: SIMATIC S7-200 SMART
- Module Type: Analog Input Expansion Module
- Number of Analog Inputs: 4 AI
- Input Signal Types: Voltage / Current (configurable per channel)
- Resolution: 12-bit
- Isolation: Optically isolated between field and logic circuits
- Connection Interface: S7-200 SMART expansion bus connector
- Mounting: DIN rail (35 mm)
- Operating Temperature: 0 °C to +55 °C
- Storage Temperature: -40 °C to +70 °C
- Degree of Protection: IP20
- Weight: Approx. 340 g
- Certifications: CE, UL (refer to official Siemens datasheet for full compliance list)
Note: All specifications are sourced from publicly available Siemens documentation. Konmask.com does not fabricate or alter manufacturer specifications.
Key Features & Benefits
- 4-Channel Analog Input: Simultaneously monitor up to 4 field signals — ideal for multi-sensor process loops without requiring additional modules.
- Flexible Signal Compatibility: Supports both voltage and current input modes, accommodating a wide range of industrial transducers and transmitters (e.g., 4–20 mA, 0–10 V).
- High-Resolution Conversion: 12-bit ADC resolution ensures fine-grained measurement accuracy for demanding process control applications.
- Plug-and-Play Expansion: Direct bus connection to S7-200 SMART CPUs — no additional wiring harness or interface card required.
- Compact DIN-Rail Design: Space-efficient housing minimizes cabinet footprint while maintaining full industrial-grade robustness.
- Optical Isolation: Protects the CPU and control logic from field-side voltage spikes and ground loops common in industrial environments.
- Wide Operating Temperature Range: Performs reliably in ambient conditions from 0 °C to 55 °C, suitable for most factory floor and panel enclosure deployments.
Industry & Equipment Applications
- Chemical & Petrochemical: Flow rate, pressure, and temperature monitoring in dosing and reaction control systems.
- Food & Beverage: Level sensing in tanks, temperature profiling in pasteurization lines.
- HVAC & Building Automation: CO₂ concentration, humidity, and temperature feedback loops.
- Water & Wastewater Treatment: pH, turbidity, and dissolved oxygen measurement.
- Packaging Machinery: Tension control, web guiding, and fill-level verification.
- Textile & Printing: Speed synchronization and tension feedback via analog transducers.
- OEM Machine Builders: Embedded in custom automation panels requiring compact, reliable analog acquisition.
System Integration & Compatible Parts
The 6ES7288-3AR04-0AA0 is designed exclusively for the SIMATIC S7-200 SMART platform. Compatible and commonly paired components include:
- S7-200 SMART CPUs: CPU SR20, CPU SR30, CPU SR40, CPU ST20, CPU ST30, CPU ST40, CPU ST60
- Digital Expansion Modules: 6ES7288-2DE08-0AA0 (8DI/8DO), 6ES7288-2DR08-0AA0
- Analog Output Modules: 6ES7288-3AQ02-0AA0 (2AO)
- Communication Modules: 6ES7288-7SC01-0AA0 (RS485/RS232 CM01)
- Programming Software: STEP 7-Micro/WIN SMART V2.x
- HMI Panels: SIMATIC SMART LINE series (e.g., SMART 700 IE V3)
When building a complete S7-200 SMART system, contact Konmask.com for a full BOM review and compatibility confirmation.
Our Quality Assurance Process
Every unit of the SIEMENS 6ES7288-3AR04-0AA0 sourced and supplied by Konmask.com undergoes a structured verification process before dispatch:
- Origin Traceability: We document the supply chain path for each unit, prioritizing authorized distributor and factory-fresh stock.
- Visual & Physical Inspection: Housing integrity, label authenticity, connector condition, and seal verification are checked against Siemens OEM standards.
- Functional Pre-check: Where applicable, modules are powered and bus-communication verified prior to packaging.
- Anti-Counterfeit Screening: Hologram labels, firmware version checks, and part marking are cross-referenced against Siemens genuine product criteria.
- Secure Packaging: ESD-safe bags, foam inserts, and reinforced cartons protect modules during international transit.
How to Order
- Submit an Inquiry: Use the contact form on this page 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 available stock confirmation.
- Order Confirmation: Review and approve the proforma invoice. Payment terms are discussed at this stage (T/T, L/C, etc.).
- Shipment & Tracking: We arrange export documentation, commercial invoice, and packing list. Tracking information is provided upon dispatch.
- After-Sales Support: Our technical team remains available post-delivery for integration questions and warranty claims.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on PLC, DCS, HMI, and automation components — not a generalist marketplace.
- Global Sourcing Network: Access to factory-fresh, refurbished, and hard-to-find obsolete parts across major automation brands.
- B2B Inquiry-First Model: We serve OEMs, system integrators, MRO teams, and engineering firms with tailored quotations — not one-size-fits-all pricing.
- Technical Expertise: Our team includes engineers with hands-on experience in Siemens SIMATIC platforms, ensuring accurate part matching and application advice.
- Reliable Export Compliance: Full export documentation, customs support, and experience shipping to 50+ countries.
- Responsive Communication: Dedicated account managers, fast response times, and transparent order tracking from inquiry to delivery.
Frequently Asked Questions
Q1: Is the 6ES7288-3AR04-0AA0 compatible with S7-200 (classic) CPUs?
No. This module is designed exclusively for the S7-200 SMART platform. It is not compatible with the legacy S7-200 series. Please verify your CPU model before ordering.
Q2: What input signal ranges does this module support?
The module supports standard industrial analog signal ranges including voltage (e.g., 0–10 V, ±10 V) and current (e.g., 0–20 mA, 4–20 mA) inputs. Refer to the official Siemens 6ES7288-3AR04-0AA0 datasheet for the complete list of configurable ranges.
Q3: How many expansion modules can be connected to one S7-200 SMART CPU?
The maximum number of expansion modules depends on the specific CPU model. Most S7-200 SMART CPUs support up to 6 expansion modules. Consult the CPU’s system manual for exact limits.
Q4: Do you supply new or refurbished units?
Konmask.com supplies both new (factory-sealed) and professionally refurbished units depending on availability and customer requirements. The condition is clearly stated in the quotation.
Q5: Can you provide a certificate of conformity or test report?
Yes. Upon request, we can provide available quality documentation including inspection reports and, where applicable, certificates of conformity. Please specify your requirements at the inquiry stage.
Q6: What is the typical lead time for this part?
Lead time varies by stock availability. In-stock units typically ship within 3–5 business days. For out-of-stock items, lead time is confirmed at the quotation stage.
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