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A-B羅克韋爾 1756-IF8I 不是伺服驅(qū)動(dòng)器，而是一款模擬輸入的I/O模塊，屬于羅克韋爾自動(dòng)化（Rockwell Automation）的ControlLogix產(chǎn)品系列。以下是對(duì)該模塊的詳細(xì)介紹：

1. 基本功能：
• A-B羅克韋爾 1756-IF8I是一款模擬輸入的I/O模塊，用于工業(yè)自動(dòng)化控制系統(tǒng)中，將模擬信號(hào)（如溫度、壓力、流量等）轉(zhuǎn)換為數(shù)字信號(hào)，以供PLC（可編程邏輯控制器）進(jìn)行處理和控制。
2. 技術(shù)參數(shù)：
• 通道數(shù)：具有8個(gè)模擬輸入通道。
• 輸入信號(hào)類型：可配置為+/-10VDC、0-10VDC、0-5VDC和0-20mA的輸入信號(hào)。
• 分辨率：+/-10VDC的分辨率為15位，其他信號(hào)類型的分辨率為16位。
• 掃描時(shí)間：因接線配置而異，對(duì)于單線布線，掃描時(shí)間為16-488 ms；對(duì)于4點(diǎn)差動(dòng)輸入，掃描時(shí)間是8-244 ms；對(duì)于2點(diǎn)差動(dòng)輸入則為5-122 ms。
3. 設(shè)計(jì)特點(diǎn)：
• 采用模塊化設(shè)計(jì)，可以方便地安裝到ControlLogix控制系統(tǒng)中，滿足不同應(yīng)用的需求。
• 支持多種接線方式：?jiǎn)味私泳€、差分接線和高速模式差分接線。
• 使用Sigma-Delta轉(zhuǎn)換方法，并以整數(shù)模式（左對(duì)齊，2秒補(bǔ)碼）保存IEEE 32位浮點(diǎn)寄存器中的接收信號(hào)。
4. 應(yīng)用場(chǎng)景：
• 該模塊通常用于連接模擬信號(hào)生成儀器和設(shè)備，如變送器、傳感器、信號(hào)分離器、信號(hào)隔離器、面板儀表等。
• 在工業(yè)自動(dòng)化控制系統(tǒng)中，用于采集模擬信號(hào)，并將其轉(zhuǎn)換為數(shù)字信號(hào)，以供PLC進(jìn)行進(jìn)一步的處理和控制。
5. 其他信息：
• 1756-IF8I模塊的安裝實(shí)例數(shù)量實(shí)際上沒(méi)有限制，大多數(shù)ControlLogix控制器能夠提供多達(dá)4000個(gè)模擬I/O信號(hào)。
• 可沿控制器安裝在本地機(jī)箱中或安裝在分布式I/O機(jī)架中。

The A-B Rockwell 1756-IF8I is not A servo drive, but an analog input I/O module from Rockwell Automation's ControlLogix product family. The following is a detailed introduction to the module:

Basic functions:

The A-B Rockwell 1756-IF8I is an analog input I/O module used in industrial automation control systems to convert analog signals (such as temperature, pressure, flow, etc.) into digital signals for PLC (Programmable logic controller) processing and control.

Technical parameters:

Number of channels: Has 8 analog input channels.

Input signal type: Can be configured as +/-10VDC, 0-10VDC, 0-5VDC, and 0-20mA input signals.

Resolution: 15 bits for +/-10VDC and 16 bits for other signal types.

Scanning time: varies depending on wiring configuration, for single wire wiring, scanning time is 16-488 ms; For a 4-point differential input, the scan time is 8-244 ms; For 2-point differential inputs it is 5-122 ms.

Design features:

With modular design, it can be easily installed into the ControlLogix control system to meet the needs of different applications.

Supports multiple connection modes: single-ended connection, differential connection, and high-speed differential connection.

The received signal in an IEEE 32-bit floating-point register is saved using the Sigma-Delta conversion method and in integer mode (left-justified, 2-second complement).

Application scenario:

The module is commonly used to connect analog signal generation instruments and devices such as transmitters, sensors, signal separators, signal isolators, panel meters, etc.

In industrial automation control systems, it is used to collect analog signals and convert them into digital signals for further processing and control by PLC.

Additional information:

There is virtually no limit to the number of installed instances of the 1756-IF8I module, with most ControlLogix controllers capable of delivering up to 4000 analog I/O signals.

It can be installed along the controller in a local chassis or in a distributed I/O rack.