ABB PPE091A101全新现货DCS控制系统电源模块

ABB PPE091A101全新现货DCS控制系统电源模块

ABB PPE091A101全新现货DCS控制系统电源模块

PPE091A101 3BHE044481R0101钢铝控制器I/O扩展器总线接口电路FEC模块为I/O使用半定制门阵列扩展器总线接口。

集成电路（IC）保持所有控制逻辑和通信协议。该IC电路提供以下功能：地址比较和检测。功能代码锁存和解码。读取选通生成。

总线信号的数据线滤波。车载总线驱动器。IMFEC11模块可以使用FSK数字通信现场总线模式或点对点模式。当微处理器启用FSK接收门时FSK型智能发射器进入FSK通信电路。表2-1列出了FSK通信。图2-5显示了解码逻辑它向微处理器提供一个9位数字字。

微处理器在速率为9600波特。要发送，微处理器启用FSK发送大门微处理器发送一个数字信号通过编码逻辑到振荡器电路。数字值在振荡器的输入上使其发送键控频率。当振荡器的数字输入改变其状态时，振荡器改变其输出频率以表示新的状态例如，振荡器输出19当其输入为逻辑1时。它输出的频率为当其输入为逻辑零时，为30.5千赫兹。

ABB PPE091A101全新现货DCS控制系统电源模块

PPE091A101 3BHE044481R0101 Steel-Aluminum controller I/O expander Bus interface Circuit The FEC module uses a semi-custom gate array expander bus interface for I/O.

The integrated circuit (IC) holds all control logic and communication protocols. The IC circuit provides the following functions: address comparison and detection. Function code latching and decoding. Read strobe generation.

Data line filtering of bus signal. Car bus driver. The IMFEC11 module can use FSK digital communication fieldbus mode or point-to-point mode. When the FSK receiving gate is enabled on the microprocessor, the FSK intelligent transmitter enters the FSK communication circuit. Table 2-1 lists FSK communications. Figure 2-5 shows the decoding logic which provides a 9-digit word to the microprocessor.

Microprocessor at a rate of 9600 baud. To send, the microprocessor enables the FSK send gate. The microprocessor sends a digital signal through the encoded logic to the oscillator circuit. The digital value on the input to the oscillator causes it to transmit the keying frequency. When the digital input to the oscillator changes its state, the oscillator changes its output frequency to represent the new state. For example, the oscillator outputs 19 when its input is logic 1. It outputs a frequency of 30.5 kilohertz when its input is logical zero.