Beckhoff First Scan Bit Info

⚠️ Always use the first scan bit to put your machine into a Safe State . Never assume the hardware is in the same position it was when the power went out.

Another method, often considered more accurate for truly catching the first PLC tick after the system is fully booted and ready, involves using the TwinCAT system library functions if needed, but the method above is generally robust for most applications. beckhoff first scan bit