4/23/2020 5:53 AM | |
Joined: 9/21/2012 Last visit: 9/20/2024 Posts: 4148 Rating: (464) |
What software and what PLC? |
4/23/2020 7:50 AM | |
Joined: 11/12/2019 Last visit: 10/30/2023 Posts: 11 Rating: (0) |
hello, i use s7-400, step7 |
4/30/2020 2:01 PM | |
Joined: 9/27/2006 Last visit: 9/19/2024 Posts: 12282 Rating: (2684)
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Hello HOGY: When you create a DB, you are in declaration view, and any value you write to the DB variables is written as "initial" value. These initial values are the ones that will be read in the DB when the CPU is restarted. When you go online and run the program, your functions might write in new values to the DB, known then as "actual" values. If these are the values you want to retain when you start up you CPU, follow the suggestion in the following FAQ: How can you back up the actual values of DBs and markers? https://support.industry.siemens.com/cs/ww/en/view/18778977 Hope this helps, |
Last edited by: dchartier at: 04/30/2020 14:11:25Last edited by: dchartier at: 05/03/2020 16:16:34Last edited by: dchartier at: 05/06/2020 01:15:09 |
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