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he_fu_man_bian_ma
- 假设一个文件中出现了8种符号S0,SQ,S2,S3,S4,S5,S6,S7,那么每种符号要编码,至少需要3bit。假设编码成000,001, 010,011,100,101,110,111。那么符号序列S0S1S7S0S1S6S2S2S3S4S5S0S0S1编码后变成 000001111000001110010010011100101000000001,共用了42bit。我们发现S0,S1,S2这3个符号出现的频率比较大,其它符号出现的频率比较小,我们采用这样的编码方案:S0到S7的码辽分别01
s7-200appl_exam
- 西门子s7-200应用实例,内有详细图解、程序框图和注解。-Siemens s7-200 Applications, with detailed diagrams, block diagram and annotations.
tqlj
- 工控软件,s7-300PLC编程,水泥厂堆取料机系统的控制系统!-Industrial Control Software, s7-300PLC programming, cement Stacker system control system!
S7-300-PPT
- plc ppt 希望对你的学习有作用!谢谢分享!-plc ppt hope to learn a role for you! Thank you to share!
PLC
- plc电镀流水线程序包 西门子s7-300系列 课程设计是自己做的,可能有疏忽的地方 程序包直接解压到电脑子目录文件下可直接使用-PLC plating line package Siemens s7-300 series Curriculum design is made by myself, there may be negligence place Package direct decompression to electric br
S7-300-MPI-communication-code
- 西门子plc 通讯程序:S7-300 MPI 通讯程序 ,压缩包内部有程序代码-S7-300 MPI communication code
S7
- 4-bit gray-to-binary code converter
S7-200KU_FILE
- 个人收集的S7-200库文件,提高PLC编程效率-S7-200 personal library collection, improving the efficiency of PLC programming
pic
- simatic tdc s7 module molding 建模仿真
PIC
- simatic tdc s7 pic module moding
S7-300-FB59-FB43-
- 西门子s7-300做的挤塑机程序,用来FB59,FB43,FB41等PID 调节模块。-Siemens s7-300 do extruder program for FB59, FB43, FB41, etc. PID regulation module.
MAIN-PUMP-2
- S7-200 实现的多电机切换恒压供水系统, 对有相关设计的工程有参考价值-S7-200 PLC WATER SUPPPLY SYSTEM
vb
- vb 与S7-1200通讯的例子 -Examples vb vb communication with S7-1200 communication with S7-1200 examples
scl
- 西门子s7-step中scl环境下的几个程序实例,分享给大家相互学习。-Several examples of Siemens s7-step program in scl environment to share for everyone to learn each other.
S7-200双精度浮点数转单精度浮点数
- S7-200双精度浮点数转单精度浮点数转换
RPVDP
- 用VB实现的Client,实现S7—PLC和计算机通信,遵照OPC协议实现-Using VB to achieve the Client, the realization of S7- PLC and computer communication, according to the OPC protocol implementation