WINCC7.0内部变量如何掉电保持?

试过"项目范围内更新","计算机本地更新","运行系统保持"这些选项,都不行.
是不是只能使用脚本把变量值写到硬盘文件,在启动时读取,希望提供代码,谢谢!!!

问题补充：
手动取消激活时可以保存吗?
我打算给工控机增加UPS电源,不会突然掉电了.
因为系统运行一段时间,会暴露出BUG,需要停机维护(例如:结构变量在运行状态似乎不能更改),系统某些设置保存在内部变量里比较方便,但停机后再启动,这些设置都无效了,重新设置比较麻烦.

最佳答案

C脚本比较普遍：
  退出是保存
#include "apdefap.h"
void Click(char* lpszPictureName, char* lpszObjectName )
{
// WINCC:TAGNAME_SECTION_START
// syntax: #define TagNameInAction "DMTagName"
// next TagID : 1
// WINCC:TAGNAME_SECTION_END
int abc;
char* Message = (char*) malloc(512);
struct tiaojie
  {
      int zishoukg;
      float shousheding;
      float zisheding;
    };
 struct shoudong
  {  
      int zishoukg;
      float shousheding;
   };
struct baojing
   {
         float gaobaoj;
         float dibaoj;
         float zisheding;
         int zishoukg;
     };
struct tiaojie pic[4];
struct baojing yewei[2];
struct shoudong pinglv[6];
FILE *fp1,*fp2, *fp3;
strcpy(Message,"\r\n确定退出吗?\r\n");

abc=MessageBox(NULL,Message,"MessageBox",1|MB_SYSTEMMODAL);
if (abc==1)
{
   pic[0].zisheding=GetTagFloat("sd_pic201a"); //tiaojie start
   pic[0].shousheding=GetTagFloat("sd_pic201ak"); 
  if((GetTagWord("WCword5IN"))&&1)
       {  pic[0].zishoukg=1;}
   else
      { pic[0].zishoukg=0;}

   pic[1].zisheding=GetTagFloat("sd_pic201b"); 
   pic[1].shousheding=GetTagFloat("sd_pic201bk"); 
  if((GetTagWord("WCword5IN"))&&4) 
       {  pic[1].zishoukg=1;}
   else
      { pic[1].zishoukg=0;}

   pic[2].zisheding=GetTagFloat("sd_pic205a"); 
   pic[2].shousheding=GetTagFloat("sd_pic205ak"); 
  if((GetTagWord("WCword5IN"))&&2)
       {  pic[2].zishoukg=1;}
   else
      { pic[2].zishoukg=0;}

   pic[3].zisheding=GetTagFloat("sd_pic205b"); 
   pic[3].shousheding=GetTagFloat("sd_pic205bk"); 
  if((GetTagWord("WCword5IN"))&&8) 
       {  pic[3].zishoukg=1;}
   else
      { pic[3].zishoukg=0;}
   fp1=fopen("D:\\DATA\\tiaoj.txt","wb+");
   if(fp1!=NULL)
    {  
    fwrite(pic,sizeof(struct tiaojie),4,fp1);                           //tiaojie  end
     }
    yewei[0].zisheding=GetTagFloat("sd_v0103a");
    yewei[0].gaobaoj=GetTagFloat("gb_v0103a");
    yewei[0].dibaoj=GetTagFloat("db_v0103a");
  if((GetTagWord("WCword5IN"))&&40)
     { yewei[0].zishoukg=1;}
   else
     {yewei[0].zishoukg=0;}

    yewei[1].zisheding=GetTagFloat("sd_v0104a");
    yewei[1].gaobaoj=GetTagFloat("gb_v0104a");
    yewei[1].dibaoj=GetTagFloat("db_v0104a");
  if((GetTagWord("WCword5IN"))&&100)
     { yewei[1].zishoukg=1;}
   else
     {yewei[1].zishoukg=0;}
   fp2=fopen("D:\\DATA\\baoj.txt","wb+");
   if(fp2!=NULL)
    {  
    fwrite(yewei,sizeof(struct baojing),2,fp2);         //yewei end
     }
  pinglv[0].shousheding=GetTagFloat("sdpl_p0100");     //shoudong start
  pinglv[0].zishoukg=0;
  pinglv[1].shousheding=GetTagFloat("sdpl_p0102a");
  pinglv[1].zishoukg=0;
  pinglv[2].shousheding=GetTagFloat("sdpl_p0103a");
  pinglv[2].zishoukg=0;
  pinglv[3].shousheding=GetTagFloat("sdpl_p0103b");
  pinglv[3].zishoukg=0;
  pinglv[4].shousheding=GetTagFloat("sdpl_m201a");
  pinglv[4].zishoukg=0;
  pinglv[5].shousheding=GetTagFloat("sdpl_m201b");
  pinglv[5].zishoukg=0;
  fp3=fopen("D:\\DATA\\shoud.txt","wb+");
   if(fp3!=NULL)
    {  
    fwrite(pinglv,sizeof(struct shoudong),6,fp3);           //shoudong end
     }   
   fclose(fp3);
   fclose(fp2);
   fclose(fp1);
SetTagBit("Exit_Flag",0); 
ExitWinCC();
}

// WINCC:PICNAME_SECTION_START
// syntax: #define PicNameInAction "PictureName"
// next PicID : 1
// WINCC:PICNAME_SECTION_END
}
读取时结构基本一样，只是命令不一样FREAD（），取数据处理

提问者对于答案的评价：
谢谢

专家置评

对于 WinCC V7.0 可以参考 文静东东 的方法。