產(chǎn)品內(nèi)容介紹
5X00500G01電源接口模塊
要正確設(shè)置模擬輸入模塊，八位DIP開關(guān)必須與位于左側(cè)的五位DIP開關(guān)的SW5一起設(shè)置單元這些開關(guān)確定輸入范圍、輸出格式、要平均化的樣本和輸入類型。B875–200可配置A/D輸入，概述概述B875–200可配置A/D輸入模塊可轉(zhuǎn)換多種信號(hào)源：熱電偶、RTD、應(yīng)變計(jì)/稱重傳感器、電壓和電流輸入范圍二進(jìn)制數(shù)據(jù)。當(dāng)為八個(gè)通道選擇時(shí)，模塊顯示在I/O中地圖為B875–200；當(dāng)為四個(gè)通道選擇時(shí)，它顯示在I/O圖中作為B873-200。該模塊提供了輪詢各種現(xiàn)場(chǎng)設(shè)備的能力，需要不同的信號(hào)源取決于所選的應(yīng)用。選擇可能是由超過48個(gè)可用的輸入包組成，每個(gè)模塊的任何組合可以接受。
八位DIP開關(guān)用于根據(jù)單元此外，兩位跳線用于選擇0、2或4個(gè)樣本每個(gè)輸入的平均值。平均有助于減少虛假噪聲對(duì)輸入。
一些應(yīng)用示例包括食品加工、壓榨操作、化學(xué)加工、涂漆和鑄造。
該模塊有四/八個(gè)模擬輸入，能夠更新所有八個(gè)通道每4毫秒一次。
所有范圍的12位分辨率和絕對(duì)精度取決于輸入包類型。
這允許快速精確地控制應(yīng)用輸入包插入程序使用以下步驟插入所需的輸入包。
步驟操作
1取下與所需輸入包位置相對(duì)應(yīng)的通道拉出卡舌。
2將輸入包插入對(duì)應(yīng)于所需通道的模塊右側(cè)。排列輸入包，以便菲利普斯頭螺釘位于頂部，14根引線位于底部。3擰緊十字頭螺釘。
注：當(dāng)使用AS–5B3201A或AS–5B32002A電流輸入包時(shí)
易熔電阻器也必須插入電路板。合適的熔斷電阻器（Modicon部件號(hào)AS–0418–000）隨當(dāng)前輸入包提供。
注：插入輸入包之前，務(wù)必插入可熔斷電阻器。如果易熔電阻器是矩形的，確保有兩根引線的一側(cè)靠近輸入包。
注：切勿在相鄰?fù)ǖ乐g放置熔斷電阻器。這可以是當(dāng)易熔電阻器隱藏電路板上通道標(biāo)簽上的CH時(shí)檢測(cè)到。
4找到模塊隨附的寫在標(biāo)簽上的標(biāo)牌（Modicon零件號(hào)AS–157A–000）。確保輸入包目錄編號(hào)和每個(gè)輸入的輸入寄存器編號(hào)安裝的包在標(biāo)簽上有明確標(biāo)識(shí)。
B875–200 Configurable A/D Input
Overview General The B875–200 Configurable A/D Input Module converts a variety of signal sources: thermocouple, RTD, strain gauge/load cell, voltage and current input ranges into binary data. When selected for eight channels, the module is displayed in the I/O map as a B875–200; when selected for four channels, it is displayed in the I/O map as a B873-200. The module provides the capability to poll a wide array of field devices requiring different signal sources based upon the application selected. Selection may be made from more than 48 available input packs, with any mix per module being acceptable. An eight-position DIP switch is used to select from one to eight input channels per module. In addition, a two-position jumper is used to select either 0, 2, or 4 samples to be averaged per input. Averaging helps reduce the impact of spurious noise on the input. Some application examples include food processing, press operating, chemical processing, painting, and foundry casting. The module has four/eight analog inputs and is capable of updates to all eight channels every 4 ms. The 12-bit resolution for all ranges, and the absolute accuracy is dependent on the input pack type. This allows for fast and precise control of the application.
To set up the analog input module properly, an eight-position DIP-switch must be set together with SW5 of a five-position DIP switch located on the left side of the module. These switches determines the input range, output format, number of samples to be averaged, and the types of inputs.
Input Pack Insertion
Procedure Use the following procedure to insert the required input pack. Step Action 1 Remove channel pull-off tabs that correspond with desired input pack placement. 2 Insert input packs into right side of module corresponding to desired channels. Align input pack so that Phillips-head screw is on top and 14 leads are at bottom. 3 Tighten Phillips-head screw. Note: When using either a AS–5B32001A or AS–5B32002A current input pack, a fusible resistor must also be inserted into the board. The proper fusible resistor (Modicon part # AS–0418–000) comes with the current input pack. Note: Always insert the fusible resistor before inserting the input pack. If the fusible resistor is rectangular, ensure that the side with two leads is next to the input pack. Note: Never place the fusible resistor between adjacent channels. This can be detected when the fusible resistor hides the CH on the CHANNEL label on the board. 4 Locate write-on label plate (Modicon part # AS–157A–000) shipped with module. Ensure that input pack catalog numbers and input register numbers for each input pack installed are clearly identified on label.
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