Hi,

I used program in simatic manager and S7300 PLC.

The program was created by someone else and long project. I want add to timers.(S_ODT)

But I don't know which timer is used. How do i find unused timers. Will it be a problem if I use the

same timer. 

Thanks for answers.

Dear aktasee09

From inside any FB OR FC from Options>>>reference data>>>display>>>cross reference ..... Now you can see all timers and IO's and memory tags.

Regards,

Thanks for answer. 

Hello,

In order to understand what is used in your program, you need to do the following (this applies not only to the search for timers and counters):

In the attachment, a picture showing how it works

1. Open your project in STEP7
2. Expand its structure and select the folder with your program (where all your blocks are located)
3. In the STEP7 menu, select - Options - reference date - display or press CTRL + ALT + R
4. Next, select in the pop-up window what information you need.
5. You may need to update her (the program will also offer this)
6. Next, as in the picture, you will see the result.

However, inside the program itself, you can search inside the blocks and find what you need as well ...

1. Open your program or block
2. Next, select / highlight the element (merker, input, output, timer, etc.) that you want to find in other program blocks
3. Press the key combination - CTRL + ALT +Q
4. And you will see how many times this element is used in your program, how many times it is read, in which blocks it is called ...

Good luck in programming!

Hope this helps.

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