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Siemens - How to check if the 1200M area address is reused
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Phenomenon Description: 1. Using the bit m20.0 in SR trigger; 2. When making an alarm, alarm all bool quantities and transmit them to int, which happens to use mw20 again. When compiling, the address is not duplicated, which leads to the discovery that SR trigger can not trigger in use. After looking up various situations, the address of m20.0 is duplicated. What can I do to see if there is any duplication of addresses in the whole program, especially in Area M? Cross-reference under the menu bar tool can see variables, but the feeling is not intuitive, it is difficult to find the repetition of M area in different FC blocks. How can I effectively and directly check whether the variable of ** address repeats? Thank you.
** To display overlapping access in the cross-reference list, follow the following steps:
1. Open the cross-reference list and click the Show overlapping access button in the toolbar.
Results: In the Object column, all objects with overlapping access are marked with corresponding overlapping access symbols.
2. At the top of the cross-reference list, select a tagged object and call the Show Overapping Accesses command in the shortcut menu.
Result: The overlapping access of the selected object will be displayed in another window entitled Overlapping Accesses of .
Description: Display overlapping access
The display of overlapping access cannot be saved and will not be displayed when the cross-reference list is opened again.
To re-display overlapping access, follow the steps above.
Second, please refer to the manual - - Programming for PLC - - 21 Displaying Cross Reference - - 21.9 Displaying Overlapping Access in Cross Reference List, P7503 Page Relevant Contents,
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