CALL "READ_CLK"
RET_VAL:=#temp_int
CDT :=P#DB8.DBX0.0 BYTE 8 //红色字体显示

CDT :=P#DB8.DBX0.0 BYTE 8 红色字体显示

F1帮助显示
Des cription of Error:

The data type of your formal parameter does not match the constant used as actual parameter. Check the format of your constants. You can seen the expected data type of the formal parameter by opening the called block. Unfortunately, the data types STRING and DATE_AND_TIME cannot be supplied with a constant during block calls.

To Correct or Avoid Error:

Harmonize the data types. The following rules apply for constant formats: