产品介绍

产品细节:1794-IEB 模拟输入模块 Flex l/O产品的一个组件模块

Allen-Bradley 1794-IE8是FlexI/O产品系列的一个组件模块。该模块是一个模拟输入模块，与Flex I/O通信适配器和终端基座一起使用，用于实现分布式I/O架构。

使用该模块的八(8)个单端、非隔离、用户可配置通道，能够接收0至20 mA、4至20mA、+/-10VDC和0至10VDC输入信号，该模块能够连接仪表，如现场变送器、模拟指示仪表、记录器、过程回路控制器和产生兼容信号范围的其他模拟仪表。

这款FlexI/O模拟输入模块配置为单极性模式时具有12位分辨率，配置为双极性模式时具有11位加号。它使用逐次逼近转换，并将转换后的数据保存为eft调整的16位2补码数据格式。它的转换率是256?所有通道的绝对精度为0.20%满星程(25C时)，电压精度漂移为-0.0428%满星程/C，电流输入精度漂移为0.00407%满量程/C。该模块不需要校准。

1794-IE8要求外部电源电压范围为10.5-31.2VDC，标称电源电压为24VDC。它需要60 mA的电源电流。它需要使用端子台来安装和连接输入信号线。兼容的终端碱基是1794-TB2、1794-TB3和1794-TB3S、1794-TB3T和1794-TB3T。该模块只需要一个端子座。

该Flex I/O模块与Flex I/O通信适配器兼容，如以太网、ControlNet、远程I/O适配器。

该模块不需要超出出厂设置的校准。它的尺寸为3.7x2.1x31.8英寸，可以安装在DIN导轨上或直接安装在面板上。1794-IE8模块可以安装在1794TB2、1794-TB3S、1794-TB3ST、1794-TB3T或1794-TB3终端基本单元上。它还带有一个电源和状态指示器，并有一个开放式外壳。该模块的电压规格为24伏DC标称值，电源电压范围为10.5至31.2 VDC，包括5%的交流纹波。

该模块兼容模拟电流信号范围，如0-20mA和4-20 mA，以及+/-10VDC和0-10VDC输入的电压信号范围。它的电压分辨率为2.56 mV/cnt(单极性)和5.13 mV/cnt(双极性)，电流分辨率为5.13 Acnt。该模块的最大电压过载为连续30伏，最大电流过载为连续32毫安，但两者只有一个通道。1794-IE8模块的最大功耗为3W，散热为10.2BTU/小时，两者均为31.2伏DC。它在10至500赫兹时的工作振动为5 g。其工作冲击为30克，而非工作冲击为50克。该模块的工作温度范围为-20至55摄氏度，而其储存温度范围为-40至85摄氏度。25摄氏度时，1794-IE8模块的电流输入和电压输入精度均为0.20%满星程，尽管电压输入包括增益、失调、可重复性和非线性误差项。电压端对63%的阶跃响应为9.4毫秒，电流端为18.2毫秒。它在25摄氏度时具有0.2%满量程的绝对精度，电压端的精度漂移为0.00428%满量程/摄氏度，电流端的精度漂移为0.00407%满星程/摄氏度。

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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▼更多产品：1794-IEB 模拟输入模块 Flex l/O产品的一个组件模块

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