# SoftPLC settings

## Size

The inbound and outbound size allotted in the fieldbus for the PLC can be set in the To controller and From controller fields.

If the fieldbus for the PLC is not configured, the framesize will display 0 for both inbound and outbound size.

## Offset

The order between fieldbus maps can be changed manually and the spacing between fieldbus maps can be controlled. Both of these two functions are controlled by the Offset parameter. This value defines the starting position of a fieldbus map in the Process Data Frame array.

In this Section

- Changing the Offset