3BHL000389P0104控制模塊ABB面價_廈門海通華業科技有限公司

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3BHL000389P0104控制模塊ABB面價

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3BHL000389P0104控制器分組合邏輯控制器和微程序控制器，兩種控制器各有長處和短處。組合邏輯控制器設計麻煩，結構復雜，一旦設計完成，就不能再修改或擴充，但它的速度快。

3BHL000389P0104微程序控制器設計方便，結構簡單，修改或擴充都方便，修改一條機器指令的功能，只需重編所對應的微程序；要增加一條機器指令，只需在控制存儲器中增加一段微程序，但是，它是通過執行一段微程。

3BHL000389P0104具體對比如下：組合邏輯控制器又稱硬布線控制器，由邏輯電路構成，完全靠硬件來實現指令的功能。

3BHL000389P0104 Controllers are divided into combinational logic controllers and microprogrammed controllers. Both controllers have their own strengths and weaknesses. The combinational logic controller is troublesome to design and has a complex structure.

3BHL000389P0104 Once the design is completed, it cannot be modified or expanded, but it is fast. Microprogrammed controllers are easy to design, simple in structure, and easy to modify or expand. To modify the function of a machine instruction, you only need to reprogram the corresponding microprogram; to add a machine instruction, you only need to add a microprogram in the control memory.

3BHL000389P0104 However, it does so by executing a mini-routine. The specific comparison is as follows: Combinational logic controllers, also known as hard-wired controllers, are composed of logic circuits and rely entirely on hardware to implement instruction functions.