AI03模擬輸入模塊多可處理8組隔離的RTD溫度輸入現(xiàn)場(chǎng)信號(hào)。每個(gè)通道支持2/3/4線RTD接線，并且可獨(dú)立配置用于任何支持的RTD類型。FC 221（I/O設(shè)備定義）設(shè)置AI模塊操作參數(shù)，每個(gè)輸入通道使用FC 222（模擬輸入通道）配置，以設(shè)置單個(gè)輸入通道參數(shù)，如工程單位、高/低報(bào)警限值等。
每個(gè)通道的A/D分辨率是具有極性的16位。AI03模塊有4個(gè)A/D轉(zhuǎn)換器，每個(gè)轉(zhuǎn)換器為2個(gè)輸入通道提供服務(wù)。該模塊將在450毫秒內(nèi)更新8個(gè)輸入通道。
AI03模塊是自動(dòng)校準(zhǔn)的，因此不需要手動(dòng)校準(zhǔn)。
特點(diǎn)和優(yōu)點(diǎn)
8個(gè)可獨(dú)立配置的通道，支持RTD類型：
100? 白金美國實(shí)驗(yàn)室和行業(yè)標(biāo)準(zhǔn)RTD
100? 白金歐洲標(biāo)準(zhǔn)RTD
120? 鎳電阻式溫度檢測(cè)器，中國53? 銅
A/D分辨率16位（帶極性）
450毫秒內(nèi)所有8個(gè)通道的A/D更新
精度為FSR=500時(shí)滿量程的±0.1%?

The AI03 Analog Input module processes up to 8 group isolated, RTD temperature input field signals. Each channel supports 2/3/4 Wire RTD wiring an is independently configurable for any of the supported RTD types. FC 221 (I/O Device Definition) sets AI module operating parameters and each input channel is configured using FC 222 (Analog Input Channel) to set indivdual input channel parameters such as engineering units, High/Low alarm limits, etc.

A/D resolution of each channel is 16 bits with polarity. The AI03 module has 4 A/D converters, each serving 2 input channels. The module will update 8 input channels in 450 msecs.

The AI03 module is automatically calibrated, hence there is no need for manual calibration.

Features and benefits

• 8 independently configurable channels supporting RTD types:
• 100 ? Platinum U.S. Lab & Industry Standard RTD
• 100 ? Platinum European Standard RTD
• 120 ? Nickel RTD, Chinese 53 ? Copper
• A/D resolution 16-Bit (with polarity)
• A/D update of all 8 Channels in 450 msecs
• Accuracy is ±0.1 % of Full Scale Range where FSR = 500 ?