S7 SCL Reference
SCL Best Practices: Naming Conventions, Structure, and Comments
SCL programming best practices based on the Siemens Programming Guideline. Covers naming conventions, code structure, REGION keyword, commenting, language selection, and common mistakes to avoid.
SCL Mathematics: Arithmetic, Comparison, Logic, and Conversion Operators
Complete SCL operator reference: arithmetic (+, -, *, /, MOD, **), comparison (<, >, =, <>), logic (AND, OR, XOR, NOT), type conversion (INT_TO_REAL, DINT_TO_REAL), and numeric functions (ABS, SQRT, SIN, COS). With precedence rules and data type behavior.
SCL Counter Functions: CTU, CTD, CTUD — Complete Reference
Complete reference for IEC counter function blocks in SCL: CTU (count up), CTD (count down), CTUD (count up/down). Syntax, parameters, examples, and S5 ZV/ZR migration notes.
SCL Syntax Reference: IF, CASE, FOR, WHILE, REPEAT
Complete SCL syntax cheat sheet for Siemens TIA Portal. IF/THEN/ELSE, CASE, FOR, WHILE, REPEAT with code examples. For S7-1200 and S7-1500.
SCL Data Types Reference: BOOL, INT, DINT, REAL, STRING, ARRAY, STRUCT
Complete SCL data type reference for Siemens TIA Portal. Elementary types (BOOL, INT, DINT, REAL, STRING), complex types (ARRAY, STRUCT, UDT), value ranges, and memory sizes.
SCL Timer Functions: TON, TOF, TP, TONR
SCL timer function reference for Siemens TIA Portal. IEC timers TON (on-delay), TOF (off-delay), TP (pulse), TONR (accumulating). Syntax, timing diagrams, and examples.