(1)| 1/27/2011 6:47 AM | |
|
Joined: 1/28/2009 Last visit: 12/24/2025 Posts: 6885 Rating:
|
Dear member The programmers utilize data blocks in two ways: 1-Global DB , which is not set asided to any FB and instant DB that are assigned to a FB.The data storage in a global data block can be used freely in any program codes in OB and FCs. In order to find which DB used as the link between HMI and PLC you can check the symbol table and for checking where they are utilized you can use go to location (Cross reference) method. also check this link: About shared Data block (shared DB )
BR |
Last edited by: hdhosseini at: 1/27/2011 6:49 AM |
|
Follow us on