Example - Ladder Diagram

STC

The STC instruction sets the carry flag, F11.2, to ON (1).

Ladder Diagram Example

When the contact, M0.0, is powered OFF, the STC instruction does NOT execute.

The carry flag, F11.2, is 0.

When the contact, M0.0, is powered ON, the STC instruction executes.

Memory Monitor

The carry flag, F11.2, is 1.