IC693ALG221 模拟输入模块分辨率为12位

IC693ALG221是一个模拟输入模块，是系列90-30可编程逻辑控制(PLC)系统的一部分。该模块是一个具有模拟输入功能的组件模块。该模块具有四(4)个输入通道，接收来自现场设备和仪器的0-20 mA和4-20 mA输入信号。该模块配备了一个内部模数转换器(ADC)，使PLC能够处理和进一步调节用户程序中使用的信号。

IC693ALG221的输入分辨率为12位，每个输入范围的分辨率为4µa (1 LSB = 4µa)，用于4-20 mA输入信号，5µa (1 LSB = 5µa)用于0-20 mA输入信号。它的绝对精度为0.1%满量程+ 0.1%读数，共模电压为200V。此外，该模块的线性度< 1最低有效位，输入滤波器响应为325 Hz。

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IC693ALG221 模拟输入模块分辨率为12位

【功能描述】

IC693ALG221默认通道设置为4 ~ 20ma。当接收到4- 20ma信号时，模块内部将信号范围转换为0-32000，这是一个代表输入寄存器值的无单位测量值。0对应4ma, 32000对应20ma。中间的值也在寄存器中表示，测量点由模块的分辨率决定。这种内部转换也适用于0-20 mA输入范围。所选择的输入信号类型是通过短接模块的可移动端子块中的特定端子硬件配置的。提供两个距离跳线，一个用于信道一和信道二，另一个用于信道三和信道四。

IC693ALG221 4通道模拟电流输入模块适用于安装在PLC系统中的几乎任何I/O机架中。为了给模块提供工作电压，来自电源的电压通过调节器/逆变器发送。确保所有现场连接都使用分级、扭曲的电缆，以尽量减少噪音和容性负载。由PLC提供的隔离+24伏直流电源是该模块的主要电源。IC693ALG221 4通道模拟电流输入模块在现场布线和背板之间提供电气隔离和光隔离，以消除外部产生的噪声。在配置模块时，建议综合考虑模块的总负载要求和电源的负载能力。

IC693ALG221 模拟输入模块分辨率为12位

The IC693ALG221 is an analog input module that is part of a series of 90-30 Programmable Logic control (PLC) systems. The module is a component module with analog input function. The module has four (4) input channels that receive 0-20 mA and 4-20 mA input signals from field equipment and instruments. The module is equipped with an internal analog-to-digital converter (ADC) that enables the PLC to process and further regulate the signals used in the user program.

The IC693ALG221 has a 12-bit input resolution of 4µa (1 LSB = 4µa) per input range for 4-20 mA input signals and 5µa (1 LSB = 5µa) for 0-20 mA input signals. It has an absolute accuracy of 0.1% full scale + 0.1% reading and a common-mode voltage of 200V. In addition, the module has a linearity of < 1 least significant bit and an input filter response of 325 Hz.

The default channel of IC693ALG221 is 4 to 20ma. When a 4-20ma signal is received, the module internally converts the signal range to 0-32000, which is a unitless measurement representing the value of the input register. 0 corresponds to 4ma and 32000 corresponds to 20ma. The intermediate value is also represented in the register, and the measurement point is determined by the resolution of the module. This internal conversion also works in the 0-20 mA input range. The selected input signal type is configured by specific terminal hardware in the removable terminal block of the shorting module. Two range jumpers are provided, one for channels one and two, and the other for channels three and four.

The IC693ALG221 4-channel analog current input module is suitable for use in almost any I/O rack installed in a PLC system. In order to provide the operating voltage to the module, the voltage from the power supply is sent through the regulator/inverter. Ensure that all field connections use graded, twisted cables to minimize noise and capacitive loads. The isolated +24 volt DC power supply provided by the PLC is the main power supply for the module. The IC693ALG221 4-channel analog current input module provides electrical and optical isolation between the field wiring and the backplane to eliminate externally generated noise. When configuring a module, you are advised to consider the total load requirements of the module and the load capacity of the power supply.