Rockwell Automation 2706-MB1 MESSAGEVIEW 421 SOFTWARE MANUAL - Manual (Page 142)

7–21 Creating Messages
Publication 2706-817
Slave devices
Slave devices support and display graphics embedded in messages
only if a Ctrl-G is inserted before each graphic. If this control
character is not inserted, the terminal replaces the graphic with two
spaces before sending the message to the slave.
Adding ASCII Control Characters to a message
This option is used to embed ASCII control characters in a message.
ASCII control characters are used to embed Control Mode and
Display Mode Control Bytes in a message to be slaved. Slaving is
discussed in the section starting on Page 7–41.
Important: This option is not used to embed ASCII and Extended
ASCII characters, which include the accented
characters used in European languages. See Page 7–6.
To add an ASCII Control Character to a message:
1. Set the insertion pointer in the Message Edit box where the
Control Character should be placed.
2. Click on the Embedded Variable tool to display a menu of
choices.
Or select the Format menu to display a similar menu.
3. Select ASCII Char to display the ASCII Characters dialog:
4. Select the number corresponding to the ASCII character you
want.
See the ASCII Table on Page I–2. ASCII characters with decimal
numbers 0 to 31 are reserved for control characters.
5. Select OK.
A placeholder, ~, is added to the message at the insertion point.
Note: ASCII characters with numbers 0 to 31 are reserved for
control characters. If #32 or higher is selected in this dialog, it will
be represented in the Message Edit box by a placeholder, even
though that number does not represent a control character.