Rockwell Automation 2711-ND3 PanelBuilder v2.60 Software User Manual - Manual (Page 148)

9–8 Creating Control List Selectors
Publication 2711-6.0
Search Tag (Piloted Control Lists only)
Specifies the name of the tag address to which the controller writes
to select an item on a control list. A control list item is selected
when the value assigned to the item equals the value at the search tag
address.
Control Tag (Piloted Control Lists only)
Only applies to Piloted Control Lists with “User and Controller” or
“Controller Only” selected in the Access box. The controller uses
this tag to determine whether the control list is controlled by an
operator or a controller. When the value at this tag address is 0, the
operator has control of the control list. A value other than 0 enables
the controller to select items on the control list.
Note on “User and Controller” Access
When the operator has control of the list, the write tag is updated in
the logic controller, but the search tag retains the same value present
when the logic controller relinquished control. When the controller
regains control of the list, it uses the value in the search tag to update
the write tag value, which changes the selected state. This behavior
is appropriate when the controller is operating as a master device.
To bypass this behavior, add the following rung of ladder logic for
each search tag address.
MOV
MOVE
Source Write Tag Address
Destination: Search Tag Address
Control Tag Address
Block Write Start Tag (Piloted Control Lists only)
Specifies the starting point for the block write data. The block write
data contains all values for items currently displayed on the control
list. The maximum number of entries supported by the block write
tag varies for each terminal.
•
15 values for PanelView 550 terminals
•
25 values for PanelView 600 terminals
•
24 values for PanelView 900 monochrome and
1000 grayscale terminals
•
29 values for PanelView 900/1000/1400 color terminals
When using block write data, do not assign functions to the
addresses following the Block Write Start Tag. Reserve an address
for each visible row on a control list.