Rockwell Automation 2706-MB1 MESSAGEVIEW 421 SOFTWARE MANUAL - Manual (Page 169)

7–48 Creating Messages
Publication 2706-817
MessageView 421F terminals have 16 Function keys on their
keypad. Function keys may be used in any application designed for a
MessageView 421F terminal. See the section starting on Page 4–20
for a discussion of Function keys.
Note: Function keys are not “embedded”in the message. The
message enables one or more Function keys based on the Function
key enable dialog (Format menu) and typically tells the terminal
operator which keys to press. The text description is developed by
the application designer.
A message with Function keys enabled:
•
can not be displayed with another message that has Function keys
enabled
•
may be displayed with a message that contains entry variables or
with a message which requires acknowledgement.
Function key attributes
When the application is designed, make a list of the Function keys
that will be used. Set them all up before any messages are created,
and then enable them for specific messages as needed.
Important: Function key attributes are global. That is, once a
Function key’s attributes are set, they are the same
every time that Function key is used in any message
within the application. If attributes are changed in one
instance, they are changed for all instances.
Select Function Keys in the Application menu to open the Function
Keys dialog.
Function Keys