Rockwell Automation 2706-MB1 MESSAGEVIEW 421 SOFTWARE MANUAL - Manual (Page 53)

4–5 Planning an Application
Publication 2706-817
A message may be up to 100 characters long, and can include any
combination of text, graphics, and variables. It can have:
•
up to one date variable
•
up to one time variable
•
up to 10 entry or display data variables in any combination,
provided the total message length is 100 characters or fewer
•
up to 50 graphics symbols, provided the total message length is
100 characters or fewer.
Variable and Graphic display characteristics in the Message
Editor
Message Component Table View Terminal View
Time Sample Time Sample Time
Date Sample Date Sample Date
Numeric Data Entry Placeholder (^^^) Placeholder (^^^)
Numeric Data Display Placeholder (###) Placeholder (###)
ASCII Data Entry Placeholder (EEE) Placeholder (EEE)
ASCII Data Display Placeholder (AAA) Placeholder (AAA)
ASCII Character Placeholder (~) Placeholder (~)
Graphics Placeholder (GR) Actual graphics symbol
Message text Alphanumeric Alphanumeric
Special Messages
The MessageView terminal supports a predefined set of Special
Messages. Message numbers 9901 to 9999 are reserved for Special
Messages.
Special Messages are triggered just like any other message while an
application is running. When triggered, they are typically not
displayed by the terminal, but acted upon.
Special Messages:
•
cannot be edited, although bit triggers may be assigned to them
•
are not displayed in the Message Editor Table View
•
are not displayed in the Message Editor Terminal View
•
cannot be chained to another message
•
are not logged into the Historical Event stack.
The Special Messages dialog is found on Page 7–54.