Field bus network controller
A network controller and field bus technology, applied in the field of automation systems, can solve problems such as difficulty in realizing interchangeability and interoperability, and equipment cannot be interconnected together, and achieve the effect of a wide range of applications
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[0047] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0048] Such as figure 1 As shown, the hardware features of the present invention include:
[0049] A controller central processing unit (CPU), the present embodiment adopts i80386EX central processing unit;
[0050] A dual-port memory (DPRAM), accessed between the field bus, the data bus and the central processing unit (CPU) of the controller and the central processing unit of the host machine connected through the interface circuit of the industry standard structure;
[0051] A random access memory (RAM), which communicates with the field bus as the controller central processing unit (CPU), is connected to the central processing unit (CPU) by the field bus and the data bus;
[0052] A programmable read-only memory (EPROM), which stores the control program; connects with the central processing unit (CPU) of the controller and the fi...
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