SDCS-PIN-51 ABB SDCS-PIN-51涂层3adt2220090r0006印刷电路板 测量卡模块

SDCS-PIN-51 所有模拟输入都是点对点的。每个通道都有一个ana-log输入滤波器，用于将通信信号与在数据进入ana-log-to-digital转换器（ADC）之前的过程数据（模拟输入）。在SDCS-PIN-51 通信模式下（IMFEC11），FSK数字通信信号依靠模拟输入信号的一小部分。该输入也通过通过FSK通信电路进行解码。这个微处理器协调点对点输入的操作并通过多路复用器输出。
显示了一个典型的模拟输入滤波器电路。电路通过连接到FEC终端（点对点）P3连接器。SDCS-PIN-51 每个模拟输入都有过电压保护以保护电路。模拟信号通过两个将通信与数据分离的低通滤波器。这个微处理器多路复用滤波后的输入信号（处理数据）提供给ADC电路以进行转换。FEC模块对每个进行模数转换以每秒五次的速度连续输入通道。在将模拟信号转换为数字等效信号之后，SDCS-PIN-51 模块将该值存储在存储器中。当处于点对点模式，FEC模块可以输入4到20 mil liamps或-10到+10 VDC。功能代码132允许选择每个通道的信号类型。


SDCS-PIN-51 All analog inputs are point-to-point. Each channel has an ana-log input filter, which is used to connect the communication signal with the process data (analog input) before the data enters the ana-log-to-digital converter (ADC). In SDCS-PIN-51 communication mode (IMFEC11), FSK digital communication signal depends on a small part of analog input signal. This input is also decoded through the FSK communication circuit. This microprocessor coordinates the operation of point-to-point inputs and outputs them through multiplexers.
A typical analog input filter circuit is shown. The circuit is connected to the FEC terminal (point to point) P3 connector. SDCS-PIN-51 Each analog input has overvoltage protection to protect the circuit. The analog signal passes through two low-pass filters that separate communication and data. This microprocessor multiplexes the filtered input signal (processing data) and provides it to the ADC circuit for conversion. The FEC module performs analog-to-digital conversion for each channel at a rate of five times per second. After converting the analog signal into a digital equivalent signal, the SDCS-PIN-51 module stores the value in the memory. When in point-to-point mode, the FEC module can input 4 to 20 mil liamps or - 10 to+10 VDC. Function code 132 allows selection of signal type for each channel