s7-200smart存储区
(一)输入/输出映像区/存储区包括:
数字量输入映像区(DI,process-image input);
数字量输出映像区(DO,process-image output);
模拟量输入存储区(AI);
模拟量输出存储区(AO);
(二)内部存储区的类别比较多,包括:
变量存储区(V,Variable memory);
标志存储区(M,Flag memory);
定时器(T,Timer);
计数器(C,Counter);
高速计数器(HC,high speed counter);
累加器(Accumulator);
特殊存储器(SM,special memory);
局部存储区(L,Local memory);
顺序控制继电器存储区(Sequence Control Relay)
s7-200 smart字节
西门子中则是地址0存储的是高字位,地址1存储的是低字位
B站PLC教程
https://www.bilibili.com/video/BV1dE411i77Z
https://www.bilibili.com/video/BV1yW411e7gG
https://www.bilibili.com/video/BV1K4411m7Vt
https://www.bilibili.com/video/BV1t64y1Q7G5
https://www.bilibili.com/video/BV1wh411r7Dh
https://www.bilibili.com/video/BV1tt4y1m7Yz
https://www.bilibili.com/video/BV1df4y1W71k
https://www.bilibili.com/video/BV1tD4y1d7Sz
https://www.bilibili.com/video/BV1J54y1X7t4
https://www.bilibili.com/video/BV1Cx411p7Hc
软PLC开源过程控制系统ProViewR
https://www.bilibili.com/video/BV1k341147JL