What does the IF condition tag allow a programmer to do?

• A. Always execute a CONTROL instruction.
• B. Execute a TIMER instruction.
• C. Execute a CONTROL instruction only if a single condition has been met.
• D. Jump to another job.

Answer: (C)

The IF condition tag acts as a gate for conditional execution: a following CONTROL instruction runs only when the specified condition is met. This means the program checks one condition, and if that condition is true, the CONTROL instruction executes; if it isn’t true, that instruction is skipped and the program continues. This is how you implement safety and responsive behavior, such as only moving a robot arm or closing a gripper when a sensor or input indicates the expected state. It does not force the CONTROL instruction to run every time, it does not involve a TIMER instruction, and it does not jump to another job.