Invensys Triconex|3481 S2| Analog Output Module
Description
The 3481 S2 Analog Output Module provides four commoned-return, DC-coupled output points for precise control of analog signals. It ensures high accuracy and reliability through advanced diagnostics and redundancy.
Features
- Channels: 4 points, commoned-return, DC-coupled
- Redundancy: Triple Modular Redundant (TMR) design
- Diagnostics: Forced-switch diagnostics (FSD)
- Over-range Protection: Up to 36 V DC continuous
- Hot Swappable: Supports online replacement
Technical Specifications
-
Output Current Range:
- Controlled: 4–20 mA
- Over-range: 0–22 mA
- Step function: <2 mA at 0 mA output
- Output Accuracy: <0.25% of Full Scale Range (FSR) (0–22 mA), from 0°C to 70°C
- Resolution: 12 bits
-
External Loop Power:
- Maximum: 32 V DC (reverse voltage-protected)
- Nominal: 24 V DC
-
Output Loop Power Requirements:
- 300 Ω @ >16 V DC
- 500 Ω @ >20 V DC
- 700 Ω @ >24 V DC
- 800 Ω @ >28 V DC
- Switch Time on Leg Failure: 1 ms (typical), 3 ms (maximum)
-
Isolation:
- Functional-to-protective-earth: 500 V DC, minimum
- Functional-to-functional-earth (logic): 800 V DC, minimum
- Maximum Logic Power: 3 Watts
Invensys Triconex|3481 S2| Analog Output Module



Invensys Triconex|3481 S2| Analog Output Module
Description
The 3481 S2 Analog Output Module provides four commoned-return, DC-coupled output points for precise control of analog signals. It ensures high accuracy and reliability through advanced diagnostics and redundancy.
Features
- Channels: 4 points, commoned-return, DC-coupled
- Redundancy: Triple Modular Redundant (TMR) design
- Diagnostics: Forced-switch diagnostics (FSD)
- Over-range Protection: Up to 36 V DC continuous
- Hot Swappable: Supports online replacement
Technical Specifications
-
Output Current Range:
- Controlled: 4–20 mA
- Over-range: 0–22 mA
- Step function: <2 mA at 0 mA output
- Output Accuracy: <0.25% of Full Scale Range (FSR) (0–22 mA), from 0°C to 70°C
- Resolution: 12 bits
-
External Loop Power:
- Maximum: 32 V DC (reverse voltage-protected)
- Nominal: 24 V DC
-
Output Loop Power Requirements:
- 300 Ω @ >16 V DC
- 500 Ω @ >20 V DC
- 700 Ω @ >24 V DC
- 800 Ω @ >28 V DC
- Switch Time on Leg Failure: 1 ms (typical), 3 ms (maximum)
-
Isolation:
- Functional-to-protective-earth: 500 V DC, minimum
- Functional-to-functional-earth (logic): 800 V DC, minimum
- Maximum Logic Power: 3 Watts