康吉森英维思TRICONEX AI3351模拟量输入模块是一款高性能的工业控制模块：

一、基本信息

品牌：康吉森英维思

型号：AI3351

产地：美国

二、技术规格

电源：24VDC

通道数量：8个

信号范围：4~20mA

额定输入电流：4~20mA

工作电流范围：2~22mA DC

输入带宽（3dB）：16Hz

输入频率范围：20Hz~20000Hz（可在低于20Hz或高于20000Hz的频率下运行，但精度和灵敏度需咨询Triconex现场服务工程师）

精度：1000~20000Hz时为±0.01%，100~999Hz时为±0.1%，20~99Hz时为±1.0%

输入诊断故障范围：全量程的0.5%

输入变化采样周期：一次扫描或210毫秒，以较长者为准

重量：1.5千克（产品本身），3千克（包括运输包装，也有说法称重3kg）

外形尺寸：可能因不同供应商或产品批次而有所差异，如267(W)×107(H)×302(D)mm或4.5×18.8×21.7cm

点数：32点（共用，针对模拟输入模块3351型）

状态指示器：每个点1个，模块状态包括PASS、FAULT、ACTIVE

三、系统特性与功能

高容错性：提供三模块冗余结构（TMR），具有三个完全相同的子电路，每个电路都执行一定程度的独立控制，能够承受恶劣的工业环境。

可现场安装：模块级可在现场进行在线安装和维修，不会影响现场布线。

模块可扩展性：支持多达118个I/O模块（模拟和数字）以及可选的通信模块。

远程通信能力：通信模块可连接至Modbus主机和从机，或连接至Foxboro和Honeywell分布式控制系统（DCS）、对等网络中的其他Tricons以及TCP/IP网络中的外部主机。

支持远程I/O：可支持距离主机最远达12公里的远程I/O模块。

基于Windows NT的编程：使用基于Windows NT系统的编程软件开发和调试控制程序。

智能功能：输入和输出模块中的智能功能减轻了主处理器的工作量。每个输入/输出模块有三个微处理器。

全面的在线诊断：在Tricon正常运行时可进行例行维护，而无需中断控制过程。

热备用支持：为I/O模块提供“热备用”支持，可用于无法及时提供服务的紧急情况。

四、应用范围

TRICONEX AI3351模拟输入模块广泛应用于要求高可靠性和安全性的工业领域，如电力、石油、矿井提升、港口、供热、燃气、供水、污水处理、冶金、造纸、纺织、化工、水利等现代化工业领域。作为Tricon控制系统的一部分，该模块能够满足这些行业对安全仪表系统的高要求，确保工厂和设施的安全运行。

The Kangjisen Ingersoll TRICONEX AI3351 analog input module is a high-performance industrial control module:

1、 Basic Information

Brand: Kangjisen Envision

Model: AI3351

Origin: United States

2、 Technical specifications

Power supply: 24VDC

Number of channels: 8

Signal range: 4~20mA

Rated input current: 4~20mA

Working current range: 2~22mA DC

Input bandwidth (3dB): 16Hz

Input frequency range: 20Hz~20000Hz (can operate at frequencies below 20Hz or above 20000Hz, but accuracy and sensitivity require consultation with Triconex on-site service engineers)

Accuracy: ± 0.01% at 1000-20000Hz, ± 0.1% at 100-999Hz, ± 1.0% at 20-99Hz

Input diagnostic fault range: 0.5% of the full range

Input change sampling period: one scan or 210 milliseconds, whichever is longer

Weight: 1.5 kilograms (product itself), 3 kilograms (including transportation packaging, also known as weighing 3kg)

Dimensions: may vary depending on different suppliers or product batches, such as 267 (W) × 107 (H) × 302 (D) mm or 4.5 × 18.8 × 21.7cm

Points: 32 points (shared, for analog input module 3351 type)

Status indicator: 1 per point, module status includes PASS, FAILT, ACTION

3、 System characteristics and functions

High fault tolerance: Three module redundant structure (TMR) is provided, with three identical sub circuits. Each circuit performs independent control to a certain extent, and can withstand harsh industrial environment.

On site installation: Module level can be installed and maintained online on site without affecting on-site wiring.

Module Scalability: Supports up to 118 I/O modules (analog and digital) and optional communication modules.

Remote communication capability: The communication module can be connected to Modbus hosts and slaves, or to Foxboro and Honeywell distributed control systems (DCS), other Tricons in peer-to-peer networks, and external hosts in TCP/IP networks.

Support remote I/O: It can support remote I/O modules up to 12 kilometers away from the host.

Programming based on Windows NT: Develop and debug control programs using programming software based on the Windows NT system.

Intelligent functions: The intelligent functions in the input and output modules reduce the workload of the main processor. Each input/output module has three microprocessors.

Comprehensive online diagnosis: Routine maintenance can be performed during normal operation of Tricon without interrupting the control process.

Hot standby support: Provides "hot standby" support for I/O modules, which can be used in emergency situations where services cannot be provided in a timely manner.

4、 Application scope

The TRICONEX AI3351 analog input module is widely used in industrial fields that require high reliability and safety, such as power, oil, mine lifting, ports, heating, gas, water supply, sewage treatment, metallurgy, papermaking, textiles, chemical industry, water conservancy and other modern industrial fields. As part of the Tricon control system, this module is able to meet the high requirements of these industries for safety instrumented systems, ensuring the safe operation of factories and facilities.

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