Rockwell Automation 2706-MB1 MESSAGEVIEW 421 SOFTWARE MANUAL - Manual (Page 166)

7–45 Creating Messages
Publication 2706-817
Field 6: Carriage Return
The Carriage Return (decimal 13) indicates the end of a message
packet. It is embedded at the end of the Slave Packet automatically.
Slaving attributes
Enable
Select Enable to send this message out the RS-232 port to the slave
device specified in the address attribute.
If Enable is not selected, the message is used by the slaving (master)
terminal only.
Auto Format
If Auto Format is enabled, the MessageView terminal sends the
entire message to a slave at once, up to the maximum message length
of 100 characters. The terminal also embeds the optional Control
byte, ASCII Text Code bytes, Optional Display Mode byte and Line
Number byte automatically.
•
Optional Control byte is set according to the Text Size attribute.
•
Flashing, Inverse Video and embedded Graphics have the proper
control characters set according to the corresponding attributes.
•
Optional Display Mode byte is set according to the Scroll and
Center attributes.
•
Line Number is set according to the Line attribute.
Note: If you place an embedded Control Byte:
•
at the beginning of the text portion of the message, it will
override an automatically placed Control Byte.
•
at the end of the text portion of the message, it will override an
automatically placed Display Mode Control Byte.
If Auto Format is disabled, the MessageView terminal:
•
sends the message to the slave device in package lengths
corresponding to the value set in the Length attribute.
•
does not embed the optional Control Byte, ASCII Text Code
Bytes, or Display Mode Byte in the message packet.
In this case these optional bytes must be placed manually in the text
portion of the message, using the ASCII Control Characters dialog
(accessed through the Format menu). See Page 7–21.