產(chǎn)品介紹
產(chǎn)品細(xì)節(jié):1794-IEB 模擬輸入模塊 Flex l/O產(chǎn)品的一個(gè)組件模塊
Allen-Bradley 1794-IE8是FlexI/O產(chǎn)品系列的一個(gè)組件模塊。該模塊是一個(gè)模擬輸入模塊，與Flex I/O通信適配器和終端基座一起使用，用于實(shí)現(xiàn)分布式I/O架構(gòu)。
使用該模塊的八(8)個(gè)單端、非隔離、用戶可配置通道，能夠接收0至20 mA、4至20mA、+/-10VDC和0至10VDC輸入信號(hào)，該模塊能夠連接儀表，如現(xiàn)場(chǎng)變送器、模擬指示儀表、記錄器、過程回路控制器和產(chǎn)生兼容信號(hào)范圍的其他模擬儀表。
這款FlexI/O模擬輸入模塊配置為單極性模式時(shí)具有12位分辨率，配置為雙極性模式時(shí)具有11位加號(hào)。它使用逐次逼近轉(zhuǎn)換，并將轉(zhuǎn)換后的數(shù)據(jù)保存為eft調(diào)整的16位2補(bǔ)碼數(shù)據(jù)格式。它的轉(zhuǎn)換率是256?所有通道的絕對(duì)精度為0.20%滿星程(25C時(shí))，電壓精度漂移為-0.0428%滿星程/C，電流輸入精度漂移為0.00407%滿量程/C。該模塊不需要校準(zhǔn)。
1794-IE8要求外部電源電壓范圍為10.5-31.2VDC，標(biāo)稱電源電壓為24VDC。它需要60 mA的電源電流。它需要使用端子臺(tái)來安裝和連接輸入信號(hào)線。兼容的終端堿基是1794-TB2、1794-TB3和1794-TB3S、1794-TB3T和1794-TB3T。該模塊只需要一個(gè)端子座。
該Flex I/O模塊與Flex I/O通信適配器兼容，如以太網(wǎng)、ControlNet、遠(yuǎn)程I/O適配器。
該模塊不需要超出出廠設(shè)置的校準(zhǔn)。它的尺寸為3.7x2.1x31.8英寸，可以安裝在DIN導(dǎo)軌上或直接安裝在面板上。1794-IE8模塊可以安裝在1794TB2、1794-TB3S、1794-TB3ST、1794-TB3T或1794-TB3終端基本單元上。它還帶有一個(gè)電源和狀態(tài)指示器，并有一個(gè)開放式外殼。該模塊的電壓規(guī)格為24伏DC標(biāo)稱值，電源電壓范圍為10.5至31.2 VDC，包括5%的交流紋波。
該模塊兼容模擬電流信號(hào)范圍，如0-20mA和4-20 mA，以及+/-10VDC和0-10VDC輸入的電壓信號(hào)范圍。它的電壓分辨率為2.56 mV/cnt(單極性)和5.13 mV/cnt(雙極性)，電流分辨率為5.13 Acnt。該模塊的最大電壓過載為連續(xù)30伏，最大電流過載為連續(xù)32毫安，但兩者只有一個(gè)通道。1794-IE8模塊的最大功耗為3W，散熱為10.2BTU/小時(shí)，兩者均為31.2伏DC。它在10至500赫茲時(shí)的工作振動(dòng)為5 g。其工作沖擊為30克，而非工作沖擊為50克。該模塊的工作溫度范圍為-20至55攝氏度，而其儲(chǔ)存溫度范圍為-40至85攝氏度。25攝氏度時(shí)，1794-IE8模塊的電流輸入和電壓輸入精度均為0.20%滿星程，盡管電壓輸入包括增益、失調(diào)、可重復(fù)性和非線性誤差項(xiàng)。電壓端對(duì)63%的階躍響應(yīng)為9.4毫秒，電流端為18.2毫秒。它在25攝氏度時(shí)具有0.2%滿量程的絕對(duì)精度，電壓端的精度漂移為0.00428%滿量程/攝氏度，電流端的精度漂移為0.00407%滿星程/攝氏度。
Product introduction
Product Details :1794-IEB Analog Input module A component module of the Flex l/O product
Allen-Bradley 1794-IE8 is a component module of the FlexI/O product family. The module is an analog input module that is used with the Flex I/O communication adapter and terminal dock to implement a distributed I/O architecture.
Using the module's eight (8) single-ended, non-isolated, user-configurable channels capable of receiving 0 to 20mA, 4 to 20mA, +/-10VDC, and 0 to 10VDC input signals, the module is capable of connecting instruments such as field transmitters, analog indicating instruments, loggers, process loop controllers, and other analog instruments that produce a compatible signal range.
This FlexI/O analog input module has 12-bit resolution when configured in unipolar mode and 11-bit plus when configured in bipolar mode. It uses successive approximation conversions and saves the converted data in EFT-adjusted 16-bit 2-complement data format. Its conversion rate is 256? The absolute accuracy of all channels is 0.20% full range (at 25C), the voltage accuracy drift is -0.0428% full range /C, and the current input accuracy drift is 0.00407% full scale /C. The module does not require calibration.
1794-IE8 requires an external supply voltage range of 10.5-31.2VDC and a nominal supply voltage of 24VDC. It requires 60 mA of supply current. It requires the use of terminal blocks to install and connect input signal lines. The compatible terminal bases are 1794-TB2, 1794-TB3 and 1794-TB3S, 1794-TB3T and 1794-TB3T. The module requires only one terminal block.
The Flex I/O module is compatible with Flex I/O communication adapters such as Ethernet, ControlNet, remote I/O adapters.
The module does not require calibration beyond factory Settings. It measures 3.7x2.1x31.8 inches and can be mounted on a DIN rail or directly onto the panel. The 1794-IE8 module can be installed on the 1794TB2, 1794-TB3S, 1794-TB3ST, 1794-TB3T, or 1794-TB3 terminal base unit. It also comes with a power and status indicator and has an open housing. The module has a voltage specification of 24 volt DC nominal value and a supply voltage range of 10.5 to 31.2 VDC, including 5% AC ripple.
The module is compatible with analog current signal ranges such as 0-20mA and 4-20 mA, as well as voltage signal ranges with +/-10VDC and 0-10VDC inputs. It has a voltage resolution of 2.56 mV/cnt(unipolar) and 5.13 mV/cnt(bipolar), and a current resolution of 5.13 Acnt. The module has a maximum voltage overload of 30 continuous volts and a maximum current overload of 32 continuous MA, but there is only one channel for both. The 1794-IE8 module has a maximum power consumption of 3W and a heat dissipation of 10.2BTU/ hour, both of which are 31.2 volts DC. It has an operating vibration of 5 g at 10 to 500 Hz. The work impact is 30 grams, while the non-work impact is 50 grams. The module operates in a temperature range of -20 to 55 degrees Celsius, while its storage temperature ranges from -40 to 85 degrees Celsius. At 25 degrees Celsius, the 1794-IE8 module's current input and voltage input accuracy are both 0.20% full range, although the voltage input includes gain, offset, repeatability and nonlinear error terms. The step response to 63% at the voltage end is 9.4 ms and 18.2 ms at the current end. It has an absolute accuracy of 0.2% full scale at 25 ° C, an accuracy drift of 0.00428% full scale / ° C on the voltage side and 0.00407% full scale / ° C on the current side.
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