8/13/2009 9:01 PM | |
Posts: 261 Rating: (42) |
If you think in totality, program is like a building. As brick by brick a building has been made a good structure program is nothing by the interconnection of some standard blocks. Normally the Standard blocks section we use STL or SCL. Because it’s tested no need to think about it. And for interconnection blocks we use LAD or FBD.
1. Normally for a same logic in SCL and STL consume less memory area compare to LAD and FBD. 2. LAD and FBD are user (end user) friendly for diagnosis.
The Siemens document “STEP 7 - Statement List for S7-300 and S7-400” (available after S7 installation) will guide you.
The tip Why can't you display an STL program in FBD or in LAD? Regards ddg |
3/20/2014 6:51 PM | |
Joined: 4/22/2010 Last visit: 5/3/2024 Posts: 5697 Rating: (715)
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Hello, to start with: SIMATIC STEP 7 V5.5 Statement List (STL) for S7-300 and S7-400 Programming In the attachment a list with all the commands. Regards, Marcjan AttachmentSTL-cheat-sheet-by-alphabet.pdf (615 Downloads) |
Problem solved? |
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