TRICONEX+3721

Description

The TRICONEX 3721 module is part of the TRICONEX series, developed by Schneider Electric for use in industrial automation and safety systems. It is designed to integrate with the Tricon safety system, which is used in process control, industrial automation, and safety critical applications.

Product Name

TRICONEX 3721 – I/O Module

Product Description

The TRICONEX 3721 is an Input/Output (I/O) module for the Tricon system. It is used to interface the Tricon system with external field devices in a wide range of industrial and safety-critical applications. The module provides robust, reliable, and flexible input/output (I/O) capabilities for the Tricon system, including both discrete and analog signals.

It is designed for use in safety instrumented systems (SIS) and process automation applications that require high availability and safety standards. The 3721 module interfaces field devices with the Tricon system by accepting inputs (e.g., digital or analog signals) and providing outputs to control processes.

Product Parameters and Specifications

1. Module Type:
   • Digital I/O and Analog I/O capabilities.
2. Input Types:Discrete (Digital) Inputs:
   • Common types include 24V DC input signals.
   • Inputs can be configured to read from switches, relays, or other binary devices.

   Analog Inputs:

   • Standard input ranges typically from 4-20mA or 0-10V DC.
   • Used for measuring physical quantities such as temperature, pressure, or flow.
3. Output Types:Discrete (Digital) Outputs:
   • Used for controlling relays, solenoids, or other devices.
   • Provides 24V DC or other standard output voltages for binary control.

   Analog Outputs:

   • Common ranges include 4-20mA or 0-10V DC.
   • Used for controlling actuators, valves, or other analog devices.
4. Communication:
   • The 3721 module connects to the Tricon system via a dedicated backplane or communication bus.
   • It supports high-speed, fault-tolerant communication protocols.
5. Power Supply:
   • The module typically operates on a 24V DC power supply.
   • Power consumption depends on the specific configuration of I/O channels.
6. Environmental Specifications:
   • Operating Temperature Range: Typically from -40°C to +70°C.
   • Storage Temperature Range: Typically from -40°C to +85°C.
   • Humidity: 5% to 95% non-condensing.
7. Safety Features:
   • Redundancy: The Tricon system often uses fault-tolerant architectures, ensuring reliability even in the event of component failures.
   • Fail-safe Operations: In safety-critical applications, the system ensures the module’s failure does not compromise safety.
8. Certification:
   • Compliance with SIL (Safety Integrity Level) standards for safety instrumented systems.
   • Suitable for use in safety-critical applications like those requiring SIL-3 or higher.

Product Use

• Safety Instrumented Systems (SIS): The TRICONEX 3721 is widely used in SIS applications where ensuring safety and minimizing risk is critical. This includes chemical plants, oil and gas facilities, power plants, and other high-risk industries.
• Process Control Applications: The module also finds use in general process automation systems where discrete and analog I/O are needed for controlling industrial processes and monitoring field devices.
• Industrial Automation: The module can be used in both control and monitoring systems for factory automation, including controlling actuators, sensors, and monitoring parameters like temperature, pressure, flow, etc.
• Redundant Systems: In high-availability systems, the TRICONEX 3721 provides redundant input and output points, helping to improve the reliability of the overall control system.

TRICONEX+3721