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Some of your confusion may come from the fact that Siemens has two different versions of the Step 7 programming package right now. The older version is the 'classic' Step 7, using SIMATIC Manager. The most recent version of that is v5.5.
Topmost 12 PLC Manufacturers ComparisonHere is the list of prominent PLC software brands.There are so many brands available in the market. Programming Units and using PC as Programming Unit. Hardware Configuration and setting object Properties of Modules in STEP. Step 7 Instructions and programming: Set / Reset, Elementary data type, Load /. Transfer, Comparison, basic math instructions.
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