Summary of Differences: Optimized Access: Memory and performance are managed by the PLC for better efficiency and speed, and variables are referenced by their symbolic names, making the program easier to work with. Standard Access: Variables have fixed addresses (absolute addressing), offering more control over memory locations but with less flexibility and slower access compared to optimized data blocks. Practical Example: If you’re working on a newer system with TIA Portal and need flexibility and performance, Optimized Access is preferred. For legacy systems or when integrating with older programs, you may need to use Standard Access to ensure compatibility.
In every video I have seen about global data, is described how to create the global and how to handle it, but no one define what it is, where it phisically reside, who initilize it, what is its resilence and when is convinient to use it
Are the lines in a Data Block the same as "object attributes" in OO languages? Or is it just a sort of "folder" to put parts of your global variables and find them more easily when programming?
Siemens use 5BD numbers for one DB. Our HMI Kinco can connect from Siemens only Data bases 1-10. We have 4DB DB 5, DB15, DB16 DB20 How we can set Nr from 1 to 10 for using 10DB in our HMI?😢😮😅😊❤❤❤
Thank you for a good video on Siemens Data block, a mile above the crowd in the TH-cam world.
Cheers
Summary of Differences:
Optimized Access: Memory and performance are managed by the PLC for better efficiency and speed, and variables are referenced by their symbolic names, making the program easier to work with.
Standard Access: Variables have fixed addresses (absolute addressing), offering more control over memory locations but with less flexibility and slower access compared to optimized data blocks.
Practical Example:
If you’re working on a newer system with TIA Portal and need flexibility and performance, Optimized Access is preferred.
For legacy systems or when integrating with older programs, you may need to use Standard Access to ensure compatibility.
In every video I have seen about global data, is described how to create the global and how to handle it, but no one define what it is, where it phisically reside, who initilize it, what is its resilence and when is convinient to use it
Thank you very much, you saved the day!
Are the lines in a Data Block the same as "object attributes" in OO languages? Or is it just a sort of "folder" to put parts of your global variables and find them more easily when programming?
I really don’t understand what you were trying to explain in the video
Thank
Siemens use 5BD numbers for one DB.
Our HMI Kinco can connect from Siemens only Data bases 1-10.
We have 4DB
DB 5, DB15, DB16 DB20
How we can set Nr from 1 to 10 for using 10DB in our HMI?😢😮😅😊❤❤❤
Thank you!