DIVISION_BY_ZERO

Severity: error

The divisor is a literal 0 or a VAR_GLOBAL CONSTANT resolving to zero.

Why it matters. Division by zero traps at runtime on most PLC runtimes, halting the program. The cheap literal cases are the easiest to catch and the most embarrassing to ship.

Settings. No check-specific config.

Trigger.

rResult := rInput / 0;             (* fires *)
rResult := rInput / cZero;         (* fires if cZero resolves to 0 *)

The bot posts.

🟥 error  DIVISION_BY_ZERO
Division by zero (divisor: 0)
Constant divisor resolves to 0. Dynamic divisors (variables
computed at runtime) are not checked.

Fix. Use a non-zero divisor, or guard with IF cZero <> 0 THEN ... END_IF;.