2/11/2021 7:48 AM | |
Posts: 198 Rating: (60) |
Hello Wantutri, There were some significant improvements to the Online Delta download capabilities in WinCC 7.4 SP1 Update 10 (according to the readme). Since you are upgrading from V9.0 SP1 you might be seeing the improvements in place only now. With respect to Online Delta loading, Siemens' FAQ's mention the following with relation to configuration limits: "Using the Load Online Changes function, you should not configure and transfer more than 500 tags, archive tags, and messages. The Load Online Changes function is not intended or suitable for transferring mass data. Configure major modifications in several steps. After configuration, transfer each partial package to the operator station." What I understand from this is, irrespective of whether it is a tag or alarm message, the delta download function sees it a binary way - below or above defined limits. There are multiple FAQs (for older versions) related to the Online Delta Download however, for WinCC 7.5 there is a very detailed elaboration about the Online Delta download functionality in the link below: https://support.industry.siemens.com/cs/mdm/109762744?c=113661168011&lc=en-US The subheading 'Quantity structure' might be of interest for your case. Hope this helps! :) |
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