10/18/2012 4:32 PM | |
Posts: 1 Rating:
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hi Pegaia |
1/18/2013 10:37 AM | |
Joined: 9/23/2005 Last visit: 8/21/2024 Posts: 4347 Rating:
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Hi Once you have already create a datalog (anyway), you should not give the command to create it again (make no sense). It should be worked by user software: either save the information that you have alread created the log, or manage the errors codes of the blocks. The blocks "Data Log Open"; "Data Log Close"; "Data Log New File" are descripted in the S7-1200 System Manual (36932465 ) chapter 8.7. Here a quck description, copied from that: Data Log Open Opens a pre-existing data log file. A data log must be opened before you can write new records to the log. Data Log Close Closes an open data log file. DataLogWrite operations to a closed data log result in an error. No write operations are allowed to this data log until another DataLogOpen operation is performed. Data Log New File: Allows your program to create a new data log file based upon an existing data log file. |
Denilson Pegaia |
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