# Enter Handshake

A read connection. You can assign a tag or an expression to this connection. This connection resets the Enter connection, using the Handshake reset type option specified in the Timing tab. Use this connection for Enter key handshaking if you want the Enter connection to be reset when a value at the data source changes.

If you assign an expression, the application calculates the value of the expression and resets the Enter connection when the expression value meets the conditions of the Handshake reset type option.

## See also

Enter key handshaking