>>>>>型号:1746-NI16I 模拟量输入模块 具有16位分辨率
【功能描述】
Allen Bradley 1746-NI16I是一款模拟量输入模块， 具有16位分辨率和16个输入通道。该模块属于 -20 至 20 mA 的电压类别。其 5 V 时的背板电流为 125 mA，而 24 V 时的背板电流为 75 mA。其背板功耗最大为 2.425 瓦（5 伏直流电时为 0.625 瓦，24 伏直流电时为 1.8 瓦）。该模块的共模电压范围相对于模拟公共端子为 +/-10.25 伏。
该装置的相对湿度为 5% 至 95%，无冷凝。其工作温度范围为 -25 至 60 摄氏度（-13 至 140 华氏度），而非工作温度介于 -40 至 85 摄氏度（-40 至 185 华氏度）之间。其输入阻抗为249;其最大电压输入在模拟公共端和任意输入端之间为 ±8 V，最大电流输入为 ±30 mA。该模块的散热为 2.43 瓦，该模块的 AIFM 连接器为 25 针 D 外壳。在机箱中安装模块时，无需从模块上卸下接线端子。但是，如果卸下接线端子，请使用接线端子旁边的标签来标识模块的位置和类型。
模拟输入用于连接模拟过程变量以测量其幅度。它主要用于监控或用作闭环控制系统的反馈信号，以使用通常为比例-积分-微分 （PID） 算法的控制方法实现手动或自动控制。没有这种反馈信号，就无法完全实现自动控制。
还可以定义其他参数来微调模块的操作。它具有用户可选择的数据格式，例如工程单位、针对 PID 进行缩放、-32,768 至 +32,767 范围的比例计数和具有用户定义范围的比例计数，仅限 3 类。该模块还具有参考输入通道检测开路的功能。模块的启动时间小于 5 秒。将信号连接到模块时，推荐的电缆是 Belden #8761 或任何等效电缆。使用的最大电线尺寸为 14 AWG。每个端子最多可以端接两 （2） 根电线。建议这样做以避免杂乱和难以关闭模块门。
>>>>>型号:1746-NI16I 模拟量输入模块 具有16位分辨率
【英文介绍】
The Allen Bradley 1746-NI16I is an analog input module with 16-bit resolution and 16 input channels. The module falls into the voltage category of -20 to 20 mA. Its backplane current at 5 V is 125 mA, while the backplane current at 24 V is 75 mA. The backplane consumes up to 2.425 watts (0.625 watts at 5 volts DC and 1.8 watts at 24 volts DC). The common-mode voltage range for this module is +/-10.25 volts relative to the analog common terminal.
The relative humidity of the unit is 5% to 95%, and there is no condensation. Its operating temperature ranges from -25 to 60 degrees Celsius (-13 to 140 degrees Fahrenheit), while its non-operating temperature ranges from -40 to 85 degrees Celsius (-40 to 185 degrees Fahrenheit). Its input impedance is 249; The maximum voltage input is ±8 V between the analog common and any input, and the maximum current input is ±30 mA. The module has a heat dissipation of 2.43 watts and the module's AIFM connector is a 25-pin D housing. When installing a module in the chassis, you do not need to remove the wiring terminals from the module. However, if you remove the terminal, use the label next to the terminal to identify the location and type of the module.
Analog inputs are used to connect analog process variables to measure their amplitude. It is primarily used for monitoring or as a feedback signal for closed-loop control systems, with manual or automatic control using a control method that is usually a proportional-integral-differential (PID) algorithm. Without this feedback signal, automatic control cannot be fully realized.
You can also define additional parameters to fine-tune the module's operation. It has user selectable data formats, such as engineering units, scaling for Pids, proportional counts in the range -32,768 to +32,767, and proportional counts with user-defined ranges, limited to 3 categories. The module also has the function of detecting the open circuit of reference input channel. The startup time of the module is less than 5 seconds. When connecting signals to modules, the recommended cable is Belden #8761 or any equivalent cable. The maximum wire size used is 14 AWG. Each terminal can be terminated with up to two (2) wires. This is recommended to avoid clutter and difficulty closing the module door.
>>>>>型号:1746-NI16I 模拟量输入模块 具有16位分辨率
