Power Up Bit (SB2)

[Bluelotus]

Hi,

I would like to know and understand the necessity of using the Power Up Bit SB 2 in the Ladder Program. I would appreciate it if someone could provide small examples where to use a power up bit and where it is not required. Thank you very much and have a great day.

Regards,

JM

[Jas]

System Bit 2 is unique in that it is only high for a single scan at power-up.

Generally it is utilized for configuration parameters of our communications function blocks (Serial, Ethernet, CAN), PID, Loadcell, PTO, etc.