IC697ALG321 | 模擬量輸入模塊 | 提供模擬量轉(zhuǎn)485功能

　　型號：IC697ALG321

　　產(chǎn)品描述 :模擬量輸入模塊

　　輸入數(shù)量 :4 輸入

　　電壓輸入范圍 :-10 至 +10 伏

　　IC697ALG321模擬量輸入模塊是一款將遠程現(xiàn)場的模擬量信號采集至計算機的設(shè)備，其利用RS-485總線作為數(shù)據(jù)通信線路，提供模擬量轉(zhuǎn)485功能，能夠同時將模擬量輸入至模塊，并通過RS-485總線傳輸至計算機。

　　IC697ALG321模擬量是表示在一定范圍內(nèi)連續(xù)變化的任意取值，跟數(shù)字量是相對立的一個狀態(tài)表示。通常模擬量用于采集和表示事物的電壓電流或者頻率等參數(shù)。模擬量輸入模塊能夠采集模擬量(如電壓、電流、熱電偶、熱電阻、溫度等數(shù)值)并通過485總線傳輸?shù)诫娔X上。由于采用RS-485接口作為通信接口，它能夠多個模塊組合傳輸更多路數(shù)模擬量信號，并且能夠在485線路上分散配置，采用地址碼進行區(qū)分，可以直接接入MODBUS RTU協(xié)議的組態(tài)軟件。

　　此外，IC697ALG321模擬量輸入模塊也常見于PLC(可編程邏輯控制器)中。PLC模擬量輸入模塊接收的輸入信號為連續(xù)的模擬信號，信號值可以在一定范圍內(nèi)連續(xù)變化，通常表示物理量的大小，如溫度、壓力等。PLC模擬量輸入模塊對輸入信號進行模數(shù)轉(zhuǎn)換，將連續(xù)的模擬信號轉(zhuǎn)換為數(shù)字信號表示，具有較高的精度和分辨率，可以精確地測量模擬信號的大小。這種模塊通常具有較少的輸入通道，每個通道接收一個模擬信號，因為每個模擬信號需要更多的資源進行處理。

　　Model: IC697ALG321

　　Product description: analog input module

　　Input quantity :4 Input

　　Voltage input range :-10 to +10 volts

　　IC697ALG321 Analog input module is a device that collects analog signals from remote field to computer, which uses RS-485 bus as a data communication line to provide analog to 485 function, which can simultaneously input analog to the module and transmit it to the computer through RS-485 bus.

　　IC697ALG321 Analog quantity is an arbitrary value that represents continuous change within a certain range, and is a state representation opposite to the digital quantity. Analog quantities are usually used to capture and represent parameters such as voltage, current or frequency of things. Analog input module can collect analog values (such as voltage, current, thermocouple, thermal resistance, temperature, etc.) and transmit to the computer through the 485 bus. As the RS-485 interface is used as the communication interface, it can combine multiple modules to transmit more analog signals, and can be distributed on the 485 line, using the address code to distinguish, and can directly access the configuration software of MODBUS RTU protocol.

　　In addition, the IC697ALG321 analog input module is also commonly found in PLC (Programmable Logic Controller). The input signal received by the PLC analog input module is a continuous analog signal, and the signal value can be continuously changed within a certain range, usually indicating the size of the physical quantity, such as temperature, pressure, etc. The PLC analog input module converts the input signal to digital, converts the continuous analog signal to digital signal representation, has high accuracy and resolution, and can accurately measure the size of the analog signal. Such modules typically have fewer input channels, each receiving one analog signal, because each analog signal requires more resources to process.