The battery board accommodates a standard button cell (CR1025) for the power supply, which can easily be replaced. The button cell is not included in the scope of supply and must be purchased separately.

The battery board is plugged like a signal board directly into the holder on the front of each S7-1200 CPU (FW 3.0 or higher). The installation dimensions of the CPU remain unchanged.

The maintenance LED on the board indicates when it is necessary to change the button cell. The battery status can be assessed at any time via the CPU user program.