Rockwell Automation 2706-MB1 MESSAGEVIEW 421 SOFTWARE MANUAL - Manual (Page 70)

4–22 Planning an Application
Publication 2706-817
Jog mode is an aspect of the Auto Clear attribute which becomes
apparent in messages that have Function keys enabled. It is
non-global. For example, Message 5 with F1 enabled may be jog
mode and Message 25 with F1 enabled may be non-jog, in the same
application.
Terminating Function Key messages
A Function key message in Jog mode remains displayed until it is
specifically terminated. Another message triggered to be displayed
on the same line will not clear it.
Function key enabled messages are terminated by:
•
pressing the Function key, if the Auto Clear attribute is set
(non–jog)
•
pressing the [0] and [+/-] keys on the terminal at the same time
•
triggering Special Message 9901, Clear Display
•
performing a terminal reset.
When the controller is an ASCII Triggering device
Each time a Function key is pressed, the MessageView terminal
sends a [Ctrl-F] command to the ASCII Triggering device.
[Ctrl-F]Message #\F-Key #\F-Key Action[CR]
•
Message # is the number of the displayed message
•
F-Key # is the function key being pressed
•
F-Key Action is the resulting state, 0=OFF and 1=ON.
If the Function key is of Latched type, the ASCII Triggering device
sends a [Ctrl-U] command to the terminal to unlatch it.
[Ctrl-U]Function Key #\MessageView Address[CR],
•
Function Key # is the Function key being unlatched, and the
•
MessageView Address is the node address of the terminal in the
ASCII network.