Specifications | Product brief STEP 7 Professional - Programming and configuring to IEC 61131-3 SIMATIC, Software, STEP 7 Professional, S7-GRAPH, S7-SCL, S7-PLCSIM, 6ZB5310-0JB02-0BA5 A&D AS SM ID, A&D PT 5 |
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Specifications | Product brief STEP 7 Professional - Programming and configuring to IEC 61131-3 SIMATIC, Software, STEP 7 Professional, S7-GRAPH, S7-SCL, S7-PLCSIM, 6ZB5310-0JB02-0BA5 A&D AS SM ID, A&D PT 5 |
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Specifications | Product brief STEP 7 Professional - Programming and configuring to IEC 61131-3 SIMATIC, Software, STEP 7 Professional, S7-GRAPH, S7-SCL, S7-PLCSIM, 6ZB5310-0JB02-0BA5 A&D AS SM ID, A&D PT 5 |
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Content | 10 S7 SCL Application, Function Application S7-SCL (Structured Control Language) is a high-level language similar to PASCAL for programming SIMATIC controllers. S7-SCL corresponds to the textual high-level language ST (Structured Text) defined in the standard IEC 61131-3. S7-SCL is particularly suit- able for programming complex algorithms and arithmetic functions or for data processing tasks. S7-SCL enables: ·Simple and fast program develop- ment with low susceptibility to errors thanks to using powerful language constructs such as IF.THEN.ELSE. ·Better understandability thanks to easier readability and improved structuring. ·Development of symbolic programs. They can be modified and re-used without a problem. ·Easier program test on high language level with a debugger. The user can thus formulate solu- tions for all automation tasks in a time-saving and cost-effective manner. Function S7 SCL programs are programmed as ASCII sources. Thus an exchange with other ASCII sources or targets is possible. The S7-SCL editor offers diverse templates that only need to be filled in and inserted: ·Templates for blocks (e.g. func- tion blocks, data blocks) and their calls. ·Templates for block comments, block parameters and constants. ·Templates for control structures (IF, CASE, FOR, WHILE, REPEAT) that contain the exact syntax. These templates enable very effi- cient programming. S7-SCL is Base Level-certified by PLCopen1) and has the following functions: ·Language elements from programming in high-level languages, e.g. serial loops, alter- native branches and branch distributors. ·S7-SCL blocks can be used in other STEP7 languages. ·PLC-typical language extensions, e.g. addressing of inputs and outputs, or start and scanning of timers and counters ·Elementary and self-defined data types for clear structuring of the user programs. Symbols and comments increase understand- ability as well. 1)Certification according to Reusability Level PLCopen will be available soon. Declaration and instruction part of a function block |
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