# 6.1 Buttons/Switchs

![](https://3950998874-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2Fpi-series-user-manual%2F-Luq2qrGWRoBQM-khisX%2F-Luq6Dv10n-MjUwP1g8-%2F0.png?generation=1575013381135555\&alt=media)

Different button has different function. Such as: Bit Switch; Bit lamp; Word Switch; Word lamp; Function Switch; Keypad Switch; Combination Switch.