2/4/2021 3:16 PM | |
Joined: 3/5/2014 Last visit: 8/5/2022 Posts: 5521 Rating: (1054)
|
hi Julien, The PLCs have different memory areas. A tag-table is not an memory area. Here you can see an overview of the memory areas: Memory areas of the S7-1500 CPUsPLC tag tables contain the definitions of the PLC tags and symbolic constants that are valid throughout the CPU. A PLC tag table is created automatically for each CPU used in the project. You can create additional tag tables and use these to sort and group tags and constants. So with a tag-table you define names for variables and constants, like input %I2.2 = "Start_Button", or DB34 = "HMI_communication_DB". A DB is a Data-Block a defined memory area. You can define its content and structure, and you are able to read and write from/to it. Have a look again in the TIA-manual: Basic principles for programming of data blocks hope this helps, regards, |
FCK WAR! |
|
2/4/2021 3:18 PM | |
Joined: 3/30/2020 Last visit: 10/14/2024 Posts: 4872 Rating: (996) |
Helpful video materials.. [LINK] |
Last edited by: Jen_Moderator at: 02/05/2021 08:49:48Optimized link. Activities of this user is voluntary. There is no obligation or liability placed on this user. Though optional, your 'please' and 'thank you' is highly valued. |
|
Follow us on