Piloted Control List Selector Properties - Connections tab

Assign a tag to this control. When a display that includes a piloted control list selector object is opened, if the operator has control of the list, the application reads the Value connection to determine what state to select. The application does not read the Value connection at any other time. When the operator selects a valid state, if the piloted control list selector's Value tag is assigned, the state's value is written out to the Value tag.

If the list is remotely controlled the Value tag does not necessarily have to be assigned. The remote controller uses the Indicator tag to select a state. If the selected state is a valid state, and if the piloted control list selector's Value tag is assigned, the state's value is written to the Value tag.

Assign a tag or expression to this connection. When the list is remotely controlled, this tag is used to select a state in the list.

This tag determines whether the operator or a remote controller selects states in the piloted control list selector. If you assign a tag or an expression to this connection, the object will be remotely controlled if the value of the tag or expression is non-zero. If Remote Access is unassigned or if its value is zero, the operator controls the object.

Assign a tag to this connection. Whenever the list scrolls, the value of the top visible state in the list is written to this tag.

Assign a non-HMI data-server tag that supports arrays to this connection. When the list scrolls, the values of the visible states are read to the array tag. The first visible state is written to the first element of the array tag, the second visible state is written to the second element of the array tag, and so on. The length of the array tag must be the same as the number of visible states the object has.

Assign a tag to this connection. This accepts values of 0 and 1 only. It determines how long the Enter key press is registered when Enter key handshaking is being used.

Assign a tag or an expression to this connection. This resets the Enter connection, using the Handshake reset type property specified in the Timing tab. Use this for Enter key handshaking if the Enter connection is 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.

This column shows the name of the connection.

This column shows an arrow to indicate which way data can flow between the connection and the data source.

tag or expression updates the data source (write connection)

data source updates the tag or expression (read connection)

tag or expression updates the data source and data source updates the tag or expression (read-write connection)

Type the tag name or expression associated with the connection. If a tag or expression has already been selected, it is displayed here.

Click this button to open the Tag Browser and choose a tag instead of typing the tag name in the Tag/Expression column.

Click this button to open the Expression editor and create an expression instead of typing the expression in the Tag/Expression column.