Triconex 3351 Analog Input Module - Specifications & Features

The Triconex 3351 Analog Input Module is a high-performance component designed for critical control applications in industrial automation. It offers reliable analog input processing with exceptional precision and robust diagnostics. Built to meet the demands of complex systems, this module ensures accurate measurements, fast response times, and high isolation for optimal safety and performance.

Key Features

32 Commoned Input Points: Supports up to 32 input points, simplifying integration and reducing system complexity.
Nominal Input Current: Designed to handle a nominal input current of 4-20 mA DC, ideal for industrial sensor systems.
Wide Operational Range: The operational current range spans from 2-22 mA DC, ensuring flexibility in various applications.
High Input Voltage Tolerance: The absolute maximum field voltage is 33 V DC, protecting the module against voltage surges.
Reverse Voltage Protection: It offers reverse voltage protection with an absolute maximum reverse field voltage of -0.6 V DC, safeguarding the module from improper wiring.
High Input Current Limit: The module can tolerate up to 50 mA DC of input current, ensuring durability under harsh operating conditions.

Performance Specifications

Bandwidth: The input bandwidth is 16 Hz (3dB), providing excellent frequency response for industrial analog signals.
Source Impedance: At 180 Ω, the module ensures stable signal integrity.
Input Impedance: With the baseplate, the input impedance is 250 Ω, ensuring minimal signal loss.
I to V Resistor: The module features a 100 Ω resistor with a tolerance of +0.01% for precise signal conversion.
Resolution: The module offers 12-bit resolution, enabling high-precision analog-to-digital conversion for accurate data processing.
Error Margin: The absolute error is 0.15% of full scale at 20 mA, ensuring minimal deviation from the expected output.

Diagnostic and Safety Features

Force-to-Value Diagnostic (FVD): The module includes the Force-to-Value diagnostic, enhancing system reliability and fault detection.
Scan Time: The scan time is <1 ms for all 32 points, ensuring real-time data acquisition and processing for fast response in control systems.
Isolation Specifications:
- Functional-to-Protective-Earth Isolation: Minimum 500 V DC, ensuring safe operation in industrial environments.
- Functional-to-Functional-Earth (Logic) Isolation: Minimum 800 V DC, providing extra protection against electrical noise and interference.

Physical Dimensions and Weight

The Triconex 3351 module is designed to be compact and lightweight for easy installation and integration into existing systems. Its form factor ensures efficient use of space within control panels.

Conclusion

The Triconex 3351 Analog Input Module is engineered to deliver high accuracy, reliability, and safety in industrial automation systems. With its broad input range, high isolation, and precise diagnostics, it is a valuable component for any critical control application.

Technical Specifications

Feature	Specification
Input Points	32 commoned
Nominal Input Current	4-20 mA DC
Operational Current Range	2-22 mA DC
Maximum Field Voltage	33 V DC
Reverse Field Voltage	-0.6 V DC
Maximum Input Current	50 mA DC
Bandwidth (3dB)	16 Hz
Source Impedance	180 Ω
Input Impedance	250 Ω (with baseplate)
I to V Resistor	100 Ω, +0.01%
Resolution	12 bits
Absolute Error	0.15% of full scale (20 mA)
Diagnostic	Force-to-value diagnostic
Scan Time	<1 ms (all 32 points)
Functional to Protective-Earth Isolation	500 V DC minimum
Functional to Functional-Earth Isolation	800 V DC minimum