Rockwell Automation 2706-M1 MESSAGEVIEW 421 HARDWARE MANUAL - Manual (Page 68)

4–8 Running Applications
Publication 2706–816
After being triggered, messages configured for the Historical Event
(HE) Stack are logged into a history file. This operation takes place
automatically.
The terminal may display three messages indicating the status of the
Historical Event Stack:
•
HE Stack is 85% Full
•
HE Stack is 95% Full
•
HE Stack is 100% Full
The 100% Full message requires you to press the Ack key to
acknowledge the message.
The 85% and 95% Full messages display for approximately 2
seconds before they terminate.
You may respond to the messages with one of these options:
•
Clear the HE Stack using the Front Panel Editor.
•
Ask the computer operator to upload the HE Stack and clear the
Stack after the upload is complete. See the MessageBuilder
Software manual.
•
Do nothing. If the HE Stack is full, new messages will overwrite
the current HE Stack contents beginning with the oldest message.
Historical Event Stack