Beckhoff First Scan Bit

:Place this line at the very bottom of your MAIN program or the last task to execute :

TwinCAT provides internal system information via the Tc2_System library. You can check if the current cycle is the very first one by looking at the system task info. beckhoff first scan bit

Note: This method is more robust because it relies on the system's own cycle counter rather than a variable you might accidentally overwrite elsewhere. Best Practices :Place this line at the very bottom of