Siemens 6ES7331-7HF01-0AB0 SM 331 Analog Input Module
Siemens 6ES7331-7HF01-0AB0 SM 331 Analog Input Module
Manufacturer: Siemens
Product No.: 6ES7331-7HF01-0AB0
Condition:1000 en stock
Product Type: SM 331 Analog Input Module
Product Origin: Germany
Payment: T/T, Western Union
Weight: 1000g
Shipping port: Xiamen
Warranty: 12 months
- Assistance 24h/24 et 7j/7
- Retours sous 30 jours
- Expédition rapide
Quick Procurement Facts
- Part Number: 6ES7331-7HF01-0AB0
- Description: 8 AI, ±20 mA / 4-20 mA / ±10 V, 16-bit, SIL 3 / Cat 4 / PL e, Safety Analog Inputs with Diagnostics
- Condition: Factory New Sealed in Original Siemens Packaging
- Warranty: 24 months (with full safety certificate & TÜV report)
- Dispatch: 24-hour global shipping from EU/US stock
- Channels: 8 failsafe analog inputs (single-channel up to SIL 2, two-channel up to SIL 3), HART-capable
Why 6ES7331-7HF01-0AB0 Is Essential for Safety Loops in 2025
- Direct SIL 3 analog measurement of pressure, level, flow and temperature without external safety barriers
- Full HART pass-through + wire-break/short-circuit/overrange diagnostics
- 16-bit resolution with <0.05 % accuracy – perfect for burner management, ESD and turbine control
- Still the most installed safety AI module in oil & gas, chemical and power plants worldwide
Typical Failure Symptoms Driving Immediate Orders
- OB35 safety alarm: “Channel fault 3” or “HART communication lost”
- F-CPU STOP due to discrepancy time exceeded on 4-20 mA loop
- Passivation of entire group after sensor cable damage
- TÜV audit: “Missing diagnostics on safety-critical transmitter”
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Siemens SIMATIC S7-300 Safety |
| Order Number | 6ES7331-7HF01-0AB0 |
| Analog Inputs | 8 × 4-20 mA / ±20 mA / ±10 V (floating) |
| Resolution | 16 bit incl. sign |
| Safety Integrity | SIL 3 (IEC 61508), Cat 4, PL e |
| Diagnostics | Wire-break, short-circuit, over/under range, HART status |
| Common Mode Rejection | > 120 dB |
| Conversion Time | 20 ms per channel (all channels) |
| HART Protocol | Full pass-through (v7) |
| Isolation | 500 V DC between channels |
| Power Loss | 4.5 W typical |
| Front Connector | 40-pin (6ES7392-1AM00-0AA0 required) |
| Dimensions (W×H×D) | 40 × 125 × 120 mm |
| Weight | 0.32 kg |
| Operating Temp | 0 to +60 °C |
Compatibility & Alternatives
- Direct replacement for: 6ES7331-7HF00-0AB0 (adds HART)
- S7-1500 F successor: 6ES7531-7QF00-0AB0
- Cross: Allen-Bradley 1756-IF8H, HIMA HIMatrix F3 AIO
Product Description
Quick Procurement Facts
- Part Number: 6ES7331-7HF01-0AB0
- Description: 8 AI, ±20 mA / 4-20 mA / ±10 V, 16-bit, SIL 3 / Cat 4 / PL e, Safety Analog Inputs with Diagnostics
- Condition: Factory New Sealed in Original Siemens Packaging
- Warranty: 24 months (with full safety certificate & TÜV report)
- Dispatch: 24-hour global shipping from EU/US stock
- Channels: 8 failsafe analog inputs (single-channel up to SIL 2, two-channel up to SIL 3), HART-capable
Why 6ES7331-7HF01-0AB0 Is Essential for Safety Loops in 2025
- Direct SIL 3 analog measurement of pressure, level, flow and temperature without external safety barriers
- Full HART pass-through + wire-break/short-circuit/overrange diagnostics
- 16-bit resolution with <0.05 % accuracy – perfect for burner management, ESD and turbine control
- Still the most installed safety AI module in oil & gas, chemical and power plants worldwide
Typical Failure Symptoms Driving Immediate Orders
- OB35 safety alarm: “Channel fault 3” or “HART communication lost”
- F-CPU STOP due to discrepancy time exceeded on 4-20 mA loop
- Passivation of entire group after sensor cable damage
- TÜV audit: “Missing diagnostics on safety-critical transmitter”
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Siemens SIMATIC S7-300 Safety |
| Order Number | 6ES7331-7HF01-0AB0 |
| Analog Inputs | 8 × 4-20 mA / ±20 mA / ±10 V (floating) |
| Resolution | 16 bit incl. sign |
| Safety Integrity | SIL 3 (IEC 61508), Cat 4, PL e |
| Diagnostics | Wire-break, short-circuit, over/under range, HART status |
| Common Mode Rejection | > 120 dB |
| Conversion Time | 20 ms per channel (all channels) |
| HART Protocol | Full pass-through (v7) |
| Isolation | 500 V DC between channels |
| Power Loss | 4.5 W typical |
| Front Connector | 40-pin (6ES7392-1AM00-0AA0 required) |
| Dimensions (W×H×D) | 40 × 125 × 120 mm |
| Weight | 0.32 kg |
| Operating Temp | 0 to +60 °C |
Compatibility & Alternatives
- Direct replacement for: 6ES7331-7HF00-0AB0 (adds HART)
- S7-1500 F successor: 6ES7531-7QF00-0AB0
- Cross: Allen-Bradley 1756-IF8H, HIMA HIMatrix F3 AIO