并给出相应的PLC程序及部分上位机界面设计。
And it also offers the design of the corresponding PLC procedure and part of the PC interface design.
该测量系统主要包括两个部分：上位机和下位机。
This system includes two parts: the upper system and the lower system.
第三部分是仪器运动的步骤管理，在上位机的利用仪器的状态来计算下一步仪器的运动命令。
The third is the step management of the instrument movement, which computes the next step according to the instrument state.
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