Rockwell Automation 2711 PANELBUILDER SOFTWARE USER MANUAL - Manual (Page 327)

The Objects
Chapter 10
10-62
Binary
If the binary data type is selected, the address assignment will be a
contiguous bit string containing from 1 to 16 bits. The bit string can be
positioned anywhere within the same PLC word by designating the
desired “start bit” (the default is zero, the typical choice). The number
of bits will depend on how many messages you wish to trigger from the
Local Message Display List.
BCD
If the BCD data type is selected, the address assignment will be a
contiguous string or either 4, 8, or 12 bits (1, 2, or 3 digits). The number
of bits will depend on how many messages you wish to trigger from the
Local Message Display List.
Triggering Local Messages for Bit Position Data Type
To trigger a message, the PLC program must set a PLC output bit that
corresponds to the desired message number in the Local Message Display
List. If the PanelView terminal sees any bit set, the corresponding message
will appear in the display area.
Bit Position
If Bit Position data type is selected, the address assignment will be a
contiguous bit string containing from 1 to 496 bits. Each bit in the string
has a corresponding message number in the Local Message Display
List. For example, the first bit corresponds to message number one, etc.
When more than one PLC word is required, the next higher word
number(s) are used. The number of messages you wish to trigger
determines the number of bits you configure this string for.
The PanelView terminal prioritizes the message bits: if the terminal sees
more than one bit set at the same time, the message associated with the
bit with the lowest address is displayed.
Triggering Messages on Multiple Local Message Displays
PanelView has one local message list but you can have several local
message displays for different purposes. It is possible to trigger different
messages for different displays by creating a subset of the local message
list for each display.
To trigger different messages on multiple Local Message Displays, the first
step is to create the display objects using non-overlapping PLC addresses.
Then enter the list of all messages in the Local Message list.