CAI04 通信接[模块DCS系统/分布式控制系统

CAI04 通信接[模块DCS系统/分布式控制系统

概述：

控制器主板ABB CAI04有6个槽位及1个电源槽位，其中有2个槽位采用快速DMA技术与CPU直接进行高速数据通信，这2个槽位通过插入以太网模件实现控制层基于标准 TCP／IP协议以太网的信息传递，剩余4个槽位F1…F4采用中断方式与CPU及主存储器进行数据交换，每个模件都可以产生自己的中断源，强大的中断控制器及先进的多任务操作系统可以快速响应来自这4个通信模件的中断信息及迅速与之进行数据交换，同时通过优先级的控制可以实时接收通信模件的错误报告信息CPU板数据总线的带宽为100MB／s，保障来自各种通信模件的大信息量数据快速传递到CPU单元进行处理。为了保证数据zui大程度的准确率，AC800F CPU单元的主存储器芯片具有错误检测及修改能力，可以检查32位数据字的2位错误及修改1位错误PM803主板提高主存储器的存储容量为16MB，实现在AC800F控制器上执行大容量的控制程序，但相应的程序保持设备要更新。

CAI04 通信接[模块DCS系统/分布式控制系统

Overview:

The controller board ABB CAI04 has 6 slots and 1 power slot, of which 2 slots use fast DMA technology to directly communicate with the CPU high-speed data, these 2 slots through the Ethernet module to achieve the control layer based on the standard TCP/IP protocol Ethernet information transmission, the remaining 4 slots F1... F4 uses interrupt mode to exchange data with CPU and main memory, each module can generate its own interrupt source, powerful interrupt controller and advanced multi-task operating system can quickly respond to the interrupt information from these four communication modules and quickly exchange data with them. At the same time, through the priority control, the error report information of the communication module can be received in real time. The bandwidth of the data bus of the CPU board is 100MB/s, which ensures that the large amount of information data from various communication modules can be quickly transferred to the CPU unit for processing. In order to ensure the maximum accuracy of the data, the main memory chip of the AC800F CPU unit has the ability of error detection and modification, which can check the 2-bit error of the 32-bit data word and modify the 1-bit error. The PM803 motherboard increases the storage capacity of the main memory to 16MB, and implements the large-capacity control program on the AC800F controller. But the corresponding program keeps the device updated.

CAI04 通信接[模块DCS系统/分布式控制系统