Ladder Logic (LAD) for S7-300 and S7-400 Programming. A5E00706949-01 iii. Preface. Purpose. This manual is your guide to creating user programs in the Ladder Logic (LAD) programming language. This manual also includes a reference section that describes the syntax and. functions of the language elements of Ladder Logic.
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Military tactics are the science and art of organizing a military force, and the techniques for combining and using weapons and military units to engage and defeat an enemy in battle. Changes in philosophy and technology have been reflected in changes to military tactics. In contemporary military science, tactics are the lowest of three planning levels: (i) strategic, (ii) operational, and (iii) tactical. The highest level of planning is strategy: how force is translated into political objectives by bridging the means and ends of war.