Rockwell Automation FactoryTalk View Site Edition Users Guide - Manual (Page 490)

F ACTORY T ALK V IEW S ITE E DITION U SER ’ S G UIDE
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You can set up 255 states for a piloted control list selector. This provides the operator with
up to 255 selections in the list.
Setting up connections for a piloted control list selector
To connect with a network device such as a programmable controller, piloted control list
selectors use tags or expressions. You set up these tags or expressions in the Connections
tab of the Properties dialog box.
Piloted control list selectors have seven tags for sending and receiving data:
 The Value tag receives the value of the currently selected state. You can use this value
to trigger an action, for example, to set a motor’s speed to low, medium, or high.
 The Indicator tag selects an item in the list if the piloted control list selector is being
controlled remotely, for example, by a network device.
 The Remote Access tag or expression determines whether the piloted control list
selector can be operated by the operator or remotely, for example, by a network
device.
If the remote access tag has a value of zero, or is not assigned, the operator can select
states in the list. If the remote access tag has a non-zero value, the selected state is
determined by the value of the Indicator tag or expression.
 The Top Position tag receives the value of the state that is the first item in the list
whenever the list scrolls.
 The Visible States tag receives the values of all the states visible in the list
whenever the list scrolls. The tag must support arrays, and the arrays must have as
many elements as the number of items visible in the piloted control list selector.
For example, if the piloted control list selector has 5 visible states, and the state values
are written to network device addresses N7:0 through N7:4 using RSLinx Enterprise,
the Visible States tag should be an array tag with the following address:
::[RSLinx Device Shortcut]N7:0,L5
where L5 indicates that the tag writes values to five addresses in the array.
 The Enter tag lets a network device confirm a selection after the Value tag is written.
The Enter tag is set for as long as is specified in the Timing tab.
 The Enter handshake tag or expression resets the Enter tag, using the Handshake
reset type option specified in the Timing tab.