Rockwell Automation 2706-MB1 MESSAGEVIEW 421 SOFTWARE MANUAL - Manual (Page 150)

7–29 Creating Messages
Publication 2706-817
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Select Keypad Controlled to allow the operator to enter the
decimal point using the keypad.
Tags
The Write Tag list box specifies the name of the tag address to
which the terminal will write the entered data. Select a tag from the
Write Tag list box, or enter a new tag name. Valid data types for the
write tag are unsigned/signed integer or BCD.
The Notification Tag list box specifies the name of the tag address
where the terminal sets a bit to 1 when a value is sent to the logic
controller.
Handshake Tag list box specifies the name of the tag address where
the controller sets a bit to 1 when a notification has been received.
Select these tags from their tag list boxes or type in new tag names.
The only valid data type for either Notification or Handshake tag is
bit.
Note: Use both Notification and Handshake Tag, or neither. See the
section on handshaking on Page 4–26. If only one tag is entered, the
application will not pass Validation.
Note: It is easier to create an application if all its tags are entered in
the Tag Editor before you start to write messages. If a new Read Tag
name is used, its parameters must be edited when it is assigned.
If the variable will be scaled, needs different data limits, or has a new
Read Tag assigned:
1. Put the insertion pointer in the Read Tag box.
2. Select the Edit Tag button to bring up the Tag Form dialog:
3. Edit the tag’s attributes (see the section starting on Page 8–2).
4. Select OK.