In fact,PLC is only a part of control,and the core is control.Figure 1 shows the development process of control.Of course,PLC has been extended to various stages with bus,real-time Ethernet,and information integration,and PLC and PC are merging.
PLC其实只是控制的一部分,核心在控制,图1就展示了控制的发展过程,当然,PLC已经延伸到带有总线、实时以太网、信息集成的各个阶段了、PLC与PC在融合。
1965-68 VETTE BOX TEN N.O.S.SORENSEN # XR-68 ALTERNATO
Vintage Sorensen 650 Ignition Coil Many older cars 12
Bruun / Sorensen / Norgard / Lund Everyone Loves The Sp
Age of 23 by Robert Sorensen
Ol Bloo’s Boogie-Woogie B.., Huling, Jan and Sorensen 9