Siemens 6ES7331-7PF11-0AB0 SM 331 Analog Input Module
Siemens 6ES7331-7PF11-0AB0 SM 331 Analog Input Module
Manufacturer: Siemens
Product No.: 6ES7331-7PF11-0AB0
Condition:1000 in stock
Product Type: SM 331 Analog Input Module
Product Origin: Germany
Payment: T/T, Western Union
Weight: 1000g
Shipping port: Xiamen
Warranty: 12 months
- 24/7 Support
- 30-Day Returns
- Fast Shipping
Quick Procurement Facts
- Part Number: 6ES7331-7PF11-0AB0
- Description: 8 AI, Thermocouple & Resistance Temperature (RTD), 16-bit, SIL 3 / Cat 4 / PL e, High-Accuracy Safety Temperature Module
- Condition: Factory New Sealed in Original Siemens Packaging
- Warranty: 24 months (with full safety & cold-junction calibration certificate)
- Dispatch: 24-hour global shipping from EU/US stock
- Channels: 8 failsafe inputs for TC (J, K, T, E, N, R, S, B) and RTD (Pt100/200/500/1000, Ni100/1000), 2/3/4-wire
Why 6ES7331-7PF11-0AB0 Dominates Safety Temperature Monitoring in 2025
- Direct SIL 3 temperature measurement for burner management, furnace protection, and turbine exhaust
- Integrated cold-junction compensation and linearization with <0.1 °C accuracy
- Full diagnostics: wire-break, short-circuit, under/over range, sensor drift
- Still the gold standard in power plants, glass furnaces, and chemical reactors worldwide
Typical Failure Symptoms Driving Immediate Orders
- OB35 alarm: “Sensor break channel 6” or “Cold-junction compensation fault”
- F-CPU STOP due to temperature discrepancy between redundant channels
- Passivation of entire group after thermocouple degradation
- TÜV audit: “Missing diagnostics on safety-critical temperature loop”
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Siemens SIMATIC S7-300 Safety |
| Order Number | 6ES7331-7PF11-0AB0 |
| Channels | 8 isolated temperature inputs |
| Supported Sensors | TC J/K/T/E/N/R/S/B, RTD Pt/Ni 100–1000 Ω |
| Resolution | 16 bit + sign |
| Safety Integrity | SIL 3 (IEC 61508), Cat 4, PL e |
| Accuracy | ±0.1 °C (Pt100) typical after calibration |
| Cold-Junction | Internal high-precision CJC |
| Diagnostics | Wire-break, short, drift, over/under range |
| Conversion Time | 100 ms all channels |
| Isolation | 500 V DC channel-to-channel |
| Power Loss | 5 W typical |
| Front Connector | 40-pin (6ES7392-1AM00-0AA0 required) |
| Dimensions (W×H×D) | 40 × 125 × 120 mm |
| Weight | 0.34 kg |
| Operating Temp | 0 to +60 °C |
Compatibility & Alternatives
- Direct successor to: 6ES7331-7PF10-0AB0 (adds more TC types)
- S7-1500 F alternative: 6ES7531-7PF00-0AB0
- Cross: Yokogawa AAT141-S + safety barrier, Emerson DeltaV SIS
Product Description
Quick Procurement Facts
- Part Number: 6ES7331-7PF11-0AB0
- Description: 8 AI, Thermocouple & Resistance Temperature (RTD), 16-bit, SIL 3 / Cat 4 / PL e, High-Accuracy Safety Temperature Module
- Condition: Factory New Sealed in Original Siemens Packaging
- Warranty: 24 months (with full safety & cold-junction calibration certificate)
- Dispatch: 24-hour global shipping from EU/US stock
- Channels: 8 failsafe inputs for TC (J, K, T, E, N, R, S, B) and RTD (Pt100/200/500/1000, Ni100/1000), 2/3/4-wire
Why 6ES7331-7PF11-0AB0 Dominates Safety Temperature Monitoring in 2025
- Direct SIL 3 temperature measurement for burner management, furnace protection, and turbine exhaust
- Integrated cold-junction compensation and linearization with <0.1 °C accuracy
- Full diagnostics: wire-break, short-circuit, under/over range, sensor drift
- Still the gold standard in power plants, glass furnaces, and chemical reactors worldwide
Typical Failure Symptoms Driving Immediate Orders
- OB35 alarm: “Sensor break channel 6” or “Cold-junction compensation fault”
- F-CPU STOP due to temperature discrepancy between redundant channels
- Passivation of entire group after thermocouple degradation
- TÜV audit: “Missing diagnostics on safety-critical temperature loop”
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Siemens SIMATIC S7-300 Safety |
| Order Number | 6ES7331-7PF11-0AB0 |
| Channels | 8 isolated temperature inputs |
| Supported Sensors | TC J/K/T/E/N/R/S/B, RTD Pt/Ni 100–1000 Ω |
| Resolution | 16 bit + sign |
| Safety Integrity | SIL 3 (IEC 61508), Cat 4, PL e |
| Accuracy | ±0.1 °C (Pt100) typical after calibration |
| Cold-Junction | Internal high-precision CJC |
| Diagnostics | Wire-break, short, drift, over/under range |
| Conversion Time | 100 ms all channels |
| Isolation | 500 V DC channel-to-channel |
| Power Loss | 5 W typical |
| Front Connector | 40-pin (6ES7392-1AM00-0AA0 required) |
| Dimensions (W×H×D) | 40 × 125 × 120 mm |
| Weight | 0.34 kg |
| Operating Temp | 0 to +60 °C |
Compatibility & Alternatives
- Direct successor to: 6ES7331-7PF10-0AB0 (adds more TC types)
- S7-1500 F alternative: 6ES7531-7PF00-0AB0
- Cross: Yokogawa AAT141-S + safety barrier, Emerson DeltaV SIS