描述
NI CFP-AI-100技术工控解析:高精度模拟输入模块
一、产品概述
NI CFP-AI-100是National Instruments(NI)推出的8通道模拟输入模块,专为Compact FieldPoint和FieldPoint系统设计,支持电压(0-30 V)和电流(0-20 mA/4-20 mA/±20 mA)信号的高精度采集。其核心优势包括12位分辨率、250 Vrms CAT II隔离、热插拔功能以及超量程报警,适用于工业自动化、数据采集、科研实验等场景,尤其在存在危险电压的环境中表现突出。
二、核心功能与技术特性
1.信号测量与隔离
多范围输入:支持11种输入范围(如0-1 V、±30 V、4-20 mA等),可软件配置,适应不同传感器需求。
高精度隔离:
通道对地隔离:250 Vrms CAT II(通过2300 Vrms 1分钟耐压测试),符合IEC 61010-1双重绝缘标准。
公共接地参考:所有通道共享同一接地,与其他模块隔离,避免信号干扰。
2.高性能硬件
ADC转换:采用逐次逼近式12位ADC,提供360 Hz更新率(每通道2.8 ms采样周期)。
热插拔设计:支持在线更换模块,减少系统停机时间。
3.诊断与报警
超量程检测:可测量超出标称范围20%的信号(如±5 V量程支持±6 V测量),避免因噪声或设备误差导致数据异常。
LED指示:
绿色LED显示电源与就绪状态;
红色LED提示信号超限或故障。
三、技术参数
参数规格
通道数8通道(电压/电流可混用)
分辨率12位
输入范围11种(如0-30 V、±20 mA等)
隔离等级250 Vrms CAT II(2300 Vrms耐压测试)
更新率360 Hz(所有通道)
工作电压24 V DC(Compact FieldPoint)
环境温度-40°C至70°C(工作),-55°C至85°C(存储)
湿度范围-40°C至85%RH(非冷凝)
防护等级IP20(控制室安装)
尺寸4.3×4.3×3.6英寸
重量0.14 kg(模块式)

FPX86-9364–A

1TGE120021R0010
NI CFP-AI-100 technical industrial control analysis:high-precision analog input module
1.Product Overview
The NI CFP-AI-100 is an 8-channel analog input module from National Instruments(NI)designed for Compact FieldPoint and FieldPoint systems,supporting high-precision acquisition of voltage(0-30 V)and current(0-20 mA/4-20 mA/±20 mA)signals.Its core advantages include 12-bit resolution,250 Vrms CAT II isolation,hot-swap function,and over-range alarm.It is suitable for industrial automation,data acquisition,scientific research and experiments and is particularly outstanding in environments with dangerous voltages.
2.Core functions and technical characteristics
1.Signal measurement and isolation
Multi-range input:supports 11 input ranges(such as 0-1 V,±30 V,4-20 mA,etc.),which can be configured software to meet different sensor needs.
High precision isolation:
Channel-to-ground isolation:250 Vrms CAT II(passed 2300 Vrms 1 minute pressure resistance test),complying with IEC 61010-1 double insulation standard.
Common grounding reference:All channels share the same grounding,isolate from other modules,and avoid signal interference.
2.High-performance hardware
ADC conversion:adopts a successive approximation 12-bit ADC,providing a 360 Hz update rate(2.8 ms sampling period per channel).
Hot-swap design:supports online replacement of modules to reduce system downtime.
3.Diagnosis and alarm
Over-range detection:It can measure signals exceeding the nominal range by 20%(such as±5 V range supports±6 V measurements),avoiding data abnormalities due to noise or equipment errors.
LED indicator:
Green LED displays power and ready status;
The red LED indicates that the signal exceeds the limit or is faulty.
3.Technical parameters
Parameters Specifications
Number of channels:8 channels(voltage/current can be mixed)
Resolution 12 bits
Input range 11 types(such as 0-30 V,±20 mA,etc.)
Isolation Level 250 Vrms CAT II(2300 Vrms Voltage Resistance Test)
Update rate 360Hz(all channels)
Operating voltage 24 V DC(Compact FieldPoint)
Ambient temperature-40°C to 70°C(operation),-55°C to 85°C(storage)
Humidity range-40°C to 85%RH(non-condensing)
Protection level IP20(Control room installation)
Dimensions 4.3×4.3×3.6 inches
Weight 0.14 kg(modular)