状态继电器

<p><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">状态继电器 </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">S </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">用于步进程序的设计和执行处理，利用 </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">STL </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">步进指令控制步进状态 </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">S </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">的转移，简化编程设计。 </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">若没有采用 </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">STL </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">编程方式，</span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">S </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">可当作普通的位元件，就如 </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">M </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">变量一样来使用。状态 </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">S </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">变量以 </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">S0</span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">，</span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">S1</span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">……</span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">S999 </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">等 </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">符号标识，其序号是以 </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">10 </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">进制方式编号。部分 </span><span style=";font-size:13px;font-family:Arial;color:rgb(35,31,32)">S </span><span style=";font-size:13px;font-family:宋体;color:rgb(35,31,32)">变量具有掉电保存功能。 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">一般用 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">保持用 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">报警用 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">保持用 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">S0 ~ S9 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">10 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">点</span><span style=";font-size:7px;font-family:Arial;color:rgb(35,31,32)"> [1] </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">S10 ~ S499 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">490 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">点 </span><span style=";font-size:7px;font-family:Arial;color:rgb(35,31,32)">[1] </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">S500 ~ S899 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">400 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">点</span><span style=";font-size:7px;font-family:Arial;color:rgb(35,31,32)"> [2] </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">S900 ~ S999 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">100 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">点 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">S1000 ~ S4095 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">3096 </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">点</span><span style=";font-size:7px;font-family:Arial;color:rgb(35,31,32)"> [3] </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">• </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">[1] </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">非停电保持区域。使用参数设定，可变更成停电保持区域。 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">• </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">[2] </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">停电保持区域。使用参数设定，可变更成非停电保持区域。 </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">• </span><span style=";font-size:12px;font-family:Arial;color:rgb(35,31,32)">[3] </span><span style=";font-size:12px;font-family:宋体;color:rgb(35,31,32)">停电保持区域，无法用参数来改变</span></p>