Rockwell Automation 2706-MB1 MESSAGEVIEW 421 SOFTWARE MANUAL - Manual (Page 167)

7–46 Creating Messages
Publication 2706-817
Example:
~This ~Message~ is half height.~
Placeholders for Ctrl-F
(ASCII Text Code Byte for Flash)
Placeholder for Ctrl-S
(optional Control Byte for Half Text Size)
Placeholder for Ctrl-C
(optional Display Mode Byte for Scroll)
Note: If the slave device is a MessageView 421D Slave Device
terminal (Catalog No. 2706-M1D), it is recommended that you
enable Auto Format.
Address
Use the Address spin control to specify the Node Address to which
the message is to be slaved. Each slave device has its own node
address. See Page 4–15 for a diagram of a possible network.
The address for an individual slave device is a number from 1 to 126.
Address 127 sends the message to all slave devices on the network.
Length
The Length attribute is enabled if Auto Format is disabled, so a
packet length may be selected.
Use the up/down arrow keys to select a number from 7 to 100 in the
Length spin control.
If the message is larger than the selected Length, the MessageView
terminal will divide it up into packets. The last packet will have
spaces inserted after the last character in the message if necessary to
meet the Length requirements.
For instance, a message 28 characters long with a Length of 10 is
sent in three packets. The last packet contains 8 characters and 2
spaces to fill it.
Note: If Auto Format is disabled and the Line attribute is “All”, only
the number of characters in the Length attribute will be sent, even if
each line portion of the message is longer. For example, if Text Size
attribute is Quarter (21 characters per line) and the Length attribute
is set at 10, the last eleven characters of each line will never be sent
to the slave if each line contains 21 characters.