CODESYS (IEC 61131-3) for Beginners - Part 2

Table of Contents

• Comments
• Execution Priority
• Conditions
• Program Flow

Comments

• Multi-line (* *)

    (*
    ----------
    My Comment
    Motor 1
    *)
  

• Single-line //

    //My Comment
  

Execution Priority

1. Parentheses ()
2. Operations on an operand, example, SIN(x) or ABS(Y)
3. Negative (−) and NOT
4. *, / , MOD
5. +, −
6. <, >, ≤, ≥
7. =, ≠
8. AND
9. XOR
10. OR