The Triconex 3721 is an analog input module applied in industrial control systems, especially suitable for safety - critical applications in the process industries. Here are the details:
- Basic Information
- Manufacturer: Triconex.
- Part Number: 3721.
- Product Type: Analog input module.
- Origin: USA.
- Technical Specifications
- Channels: It provides 32 channels of analog input.
- Input Type: Supports differential 0 - 5 VDC or - 5 to + 5 VDC input signals.
- Resolution: It has a 12 - bit or 14 - bit programmable resolution to meet various accuracy requirements.
- Accuracy: The accuracy is ± 0.15% of full - scale from 0°C to 60°C.
- Input Update Rate: The input update rate is 10 ms.
- Common - Mode Rejection: The common - mode rejection is - 85 dB (DC – 100 Hz).
- Input Over - Range Protection: It has input over - range protection of 150 VDC / 115 VAC continuous.
- Isolation: The input channels are fully isolated, enhancing system safety.
- Product Features
- Triple - Redundant Architecture: It adopts a triple - modular redundancy (TMR) design. Three independent channels process data simultaneously, and the voting mechanism ensures the correctness of the output result, which improves the reliability and availability of the system.
- High - Precision Measurement: It provides high - resolution technology for accurate analog signal acquisition, which can meet the needs of precise measurement of process variables such as temperature, pressure, and flow in industrial control.
- Flexible Configuration: The module allows for configuration of input ranges, resolution, sampling rates, and other parameters to suit specific applications.
- Self - diagnosis and Fault - Tolerance: Each module conducts ongoing diagnostics and supports hot - spare capability for online replacement, which can quickly detect and handle faults, reducing downtime.
- Compatibility: It supports 多种主流协议，including Modbus, Profibus DP and HART, enabling seamless integration into existing automation systems for data exchange and remote monitoring.
- Operating Environment
- Operating Temperature: It can work normally in the range of - 20°C to + 60°C, adapting to various industrial environmental conditions.
- Application Areas
- It is widely used in industries such as oil and gas, petrochemicals, power, manufacturing, water treatment, environmental protection, and municipal engineering. It is used to monitor and control various parameters in the process, such as monitoring key parameters in oil refining and chemical production processes, participating in the control and monitoring of power generation and power distribution systems, etc., to ensure production safety and the stability of the process.
