First of all, their programming philosophy is different. Mitsubishi PLC is a Japanese brand. The programming is intuitive and easy to understand. It is easier to learn. Siemens PLC is a German brand. The instructions are more abstract, and the learning is more difficult, but the instructions are less, and Mitsubishi has more instructions. So learning Mitsubishi is the same as learning Siemens.

Mitsubishi's strength lies in discrete control and motion control. Siemens's  strength lies in Process control and communication control . Siemens analog module sare cheap and simple, and Mitsubishi's analog module are expensive, complex, Siemens is easy to communicate, and the program is simple. Mitsubishi is weak in this function.

Therefore, for different control methods of different equipment, we must rationally choose PLC, use its strengths and avoid its shortcomings.

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