SIMATIC is a series of programmable logic controller and automation systems, developed by Siemens. ( Learn how and when to remove this template message) For more guidance, see Wikipedia:Translation.
You should also add the template to the talk page. A model attribution edit summary is Content in this edit is translated from the existing German Wikipedia article at ] see its history for attribution. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. If possible, verify the text with references provided in the foreign-language article. Do not translate text that appears unreliable or low-quality. Consider adding a topic to this template: there are already 6,783 articles in the main category, and specifying |topic= will aid in categorization. Machine translation like DeepL or Google Translate is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. View a machine-translated version of the German article. Learn more about DMC's expertise in Siemens S7 PLC programming. Download - your values have been retained. This will set all values in the data block equal to the values you see in the Source file. Open the Source file you created and compile it. Make all changes that you need to the data block then Save and Close the data block. 
This will save a version of your data block and the values in a file in the Sources folder. Open the datablock and Generate Source for the data block.Even if you have first saved a copy of your online values prior to making the change, the values will be lost after you save the change. If you need to make a more complicated change to the data block such as adding items to a udt used with the data block, a few more steps are needed. Download - your values will be retained.Copy the online version of the data block whose values you would like to retain into your offline project.
Go online with all of the blocks in Simatic Manager.If you are simply adding items to the end of a flat data block (not adding items to a user-defined type (udt) within the data block, for example) then to retain the values of the data block follow these quick steps. A simple yet common problem when programming a Siemens Simatic S7-300 PLC is losing the data already stored in the PLC after downloading an updated data block.
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