0x456 - Negative homing switch
Index  | Name  | Data Type  | Access  | Cyclic access  | NVM  | Value range  | Default value  | Units  | 
|---|---|---|---|---|---|---|---|---|
0x456  | Negative homing switch  | UINT16  | RW  | No  | Yes  | 0 to 4  | 0  | - | 
This register contains the GPI attached to a negative homing switch.
If the value is 0, it means that there isn't an attached GPI to the functionality, otherwise the value indicates what GPI is attached.