What is First Scan Bit and How to create a tag?
When we look at what we can use this bit for;
Where can you use the First Scan Bit?
In power controls, for example, it is understood that the plc is re-started and accordingly. The contactors in certain parts of the machine can be energized by managing these contractors with the help of the timer for a certain time from the first start of the plc by means of a timer triggered by the S: FC bit.
Or generally, in safety circuits, the safety reset can be allowed after a certain period of time after the machine is ready, and reset conditions can be connected to it by using a timer named power on.
Default parameters are assigned by move and copy commands triggered by the S: FC command in order to reset commonly used sequencers or to make machine parameters default.