Mitsubishi Electronics FX1S manual FX Series Programmable ControllersSTL Programming

FX Series Programmable ControllersSTL Programming 3

Chapter Contents
3. STL Programming			3-1
3.1	What is STL, SFC And IEC1131 Part 3?		3-1
3.2	How STL Operates		3-2
3.2.1		Each step is a program	3-2
3.3	How To Start And End An STL Program		3-3
3.3.1		Embedded STL programs	3-3
3.3.2		Activating new states	3-3
3.3.3		Terminating an STL Program	3-4
3.4	Moving Between STL Steps		3-5
3.4.1		Using SET to drive an STL coil	3-5
3.4.2		Using OUT to drive an STL coil	3-6
3.5	Rules and Techniques For STL programs		3-7
3.5.1		Basic Notes On The Behavior Of STL programs	3-7
3.5.2		Single Signal Step Control	3-9
3.6	Restrictions Of Some Instructions When Used With STL		3-10
3.7	Using STL To Select The Most Appropriate Program		3-11
3.8	Using STL To Activate Multiple Flows Simultaneously		3-12
3.9	General Rules For Successful STL Branching		3-14
3.10	General Precautions When Using The FX-PCS/AT-EE Software		3-15
3.11	Programming Examples		3-16
3.11.1 A Simple STL Flow			3-16
3.11.2 A Selective Branch/ First State Merge Example Program			3-18
3.12	Advanced STL Use		3-20