提示 ： accesses to instance data blocks by means of a global data block access are not allowed
Help on Message 34:4487
Description of Error:
You are using symbolic data block access. In the symbol table, the data block being used is declared as an instance data block for an FB or an SFB. In the available Compile Option, such "cross access" is not permitted because the (S)FB considers the data to be its own local data.
To Correct or Avoid Error:
Change your access or turn off the option that forbids cross access in instance data blocks.
最佳答案
这种错误应该提示在哪个块中吧。在CPU模块信息中的诊断缓冲区看看下面的“打开块”是不是可用，指明错误的地方。
提问者对于答案的评价：
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