Compare with 6ES7288-3AR04-0AA0 and 6ES7288-3AR02-0AA0
I. Key Differences Between 6ES7288-3AR04-0AA0 and 6ES7288-3AR06-0AA0
Comparison Table: 6ES7288-3AR04-0AA0 vs. 6ES7288-3AR02-0AA0
| Feature | 6ES7288-3AR04-0AA0 | 6ES7288-3AR02-0AA0 |
|---|---|---|
| Input Channels | 4 analog inputs (supports RTD/thermocouples) | 2 analog inputs (RTD-only) |
| Accuracy | Temperature measurement: ±0.1°C | Not explicitly specified (typically lower than AR04) |
| Input Types | Multiple thermocouples (S/T/R/E/N/K/J) + RTD | RTD-specific (e.g., PT100) |
| Applications | High-precision temperature monitoring (e.g., plastic machinery, textile equipment) | General analog signal processing (e.g., machinery manufacturing, food processing) |
| Scalability | Compatible with hybrid modules (e.g., 3AM06) | Single-function, focused on RTD signals |
Common ground
- Series and Application: Both belong to the Siemens S7-200 SMART series of analog input modules, designed specifically for industrial automation scenarios. They are used to connect sensors (such as thermocouples and thermistors) to PLC systems, enabling the acquisition and processing of analog signals such as temperature and pressure.
- Compatibility and Scalability: All support Profibus/Profinet communication protocols and can be seamlessly integrated into Siemens automation systems, compatible with multiple sensor types (such as PT100, thermocouples), and adaptable to complex industrial environments.
- Installation and maintenance: Adopting modular design, supporting hot swapping, facilitating quick installation and maintenance, and reducing downtime.
Selection Recommendations
-
For high-precision temperature measurement:
Opt for the 6ES7288-3AR04-0AA0, ideal for applications requiring stringent temperature control, such as plastic machinery and precision manufacturing. -
For general-purpose analog signal processing:
Choose the 6ES7288-3AR02-0AA0, suitable for cost-effective solutions in machinery manufacturing, packaging production lines, and similar common industrial scenarios. -
For mixed input/output requirements:
Consider the 6ES7288-3AM06-0AA0 (4 inputs/2 outputs), which balances channel capacity with functional flexibility.
Let me know if you need further refinements! Engineering Selection Criteria, Automation System Optimization.
6ES7288-3AR04-0AA0 Thermistor input 4 Channels Manualbook PDF (Download)
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