7/31/2014 1:00 PM | |
Joined: 9/23/2005 Last visit: 8/27/2024 Posts: 4347 Rating:
|
Hi,
you are right: if you have more than 150k of program blocks, you will need change your CPU. Both CPU's (1500 and 400) has a similar memory concept, it is just the form that the product is showed to the marketing: your S7-400 has 144k for program and 144k for data (so, 144k+144k=288k) your S7-1500 has 150k for program and 1M for data (so, 1M+150k = 1,15M) |
Denilson Pegaia |
|
This contribution was helpful to
1 thankful Users |
8/4/2014 8:39 AM | |
Joined: 11/9/2008 Last visit: 8/23/2024 Posts: 410 Rating:
|
Hi Pegaia, Thanks for your help. Regards, Yogendra G
|
This contribution was helpful to
1 thankful Users |
8/4/2014 11:52 AM | |
Joined: 9/23/2005 Last visit: 8/27/2024 Posts: 4347 Rating:
|
You are wellcome :) |
Denilson Pegaia |
|
6/10/2018 12:10 PM | |
Posts: 1 Rating:
|
|
6/10/2018 1:46 PM | |
Joined: 1/21/2013 Last visit: 9/4/2024 Posts: 4620 Rating:
|
Hello, go to page 16: Attachments71500_structure_and_use_of_the_PLC_memory_function_manual_en-US_en-US.pdf (725 Downloads) |
Last edited by: Jen_Moderator at: 6/20/2018 2:27:28 PMAdded file as an attachment. |
|
6/10/2020 4:34 PM | |
Joined: 9/6/2014 Last visit: 9/4/2024 Posts: 9 Rating:
|
Hi All, Is it okay if we use 100% work memory in s7 1500 PLC? Will it have any effect scan cycle time? Thanks & Regards, |
6/10/2020 5:18 PM | |
Joined: 7/7/2010 Last visit: 9/6/2024 Posts: 15157 Rating:
|
If you use 100% work memory, you cannot offer any updates that require additional memory, so it's a bad idea to use all available work memory. If all your logic is solved every PLC scan, it will affect total scan time. If the project is configured to only solve logic required at that time, it can run efficiently even with a large program. For example, if there is a large initialize logic requirement, during normal operation, that logic should be ignored, so it has no effect on scan time.
|
science guy |
|
Follow us on