Rockwell Automation 2706-M1 MESSAGEVIEW 421 HARDWARE MANUAL - Manual (Page 82)

4–22 Running Applications
Publication 2706–816
Example: [Ctrl-K]75[CR]
•
The terminal displayed message #75, which was defined as an
acknowledgeable message. The operator pressed the ACK key,
and this response message was sent to the ASCII Triggering
device.
Report a function key press with [Ctrl-F]
Used by the terminal to report that a function key was pressed.
Format: [Ctrl-F]Message#\ F-key#\ F-key action[CR]
•
Message# range: 1 to 9999; limited to the subset used in the
application
•
F-key# range: 1 to 16
•
F-key action range: 0 or 1; the application defined the function
key as Normally Open or Normally Closed; this Normal state is
defined as 0.
Example: [Ctrl-F]33\ 5\ 1[CR]
•
When the terminal operator pressed function key #5 which was
enabled in Message #33, the terminal sent this message that the
function key had changed to the altered state.
Note: If the operator presses a momentary function key, the
terminal will automatically send another [Ctrl-F] message when
its Hold Time is up:
– [Ctrl-F]33\ 5\ 0[CR]
Note: If a latched function key is unlatched after the terminal
receives a [Ctrl-U] message, the Message# parameter in the
[Ctrl-F] message is 0.
Return message number with [Ctrl-N]
Certain types of messages have their message number returned to the
ASCII Triggering device using [Ctrl-K], [Ctrl-I] or [Ctrl-F]. [Ctrl-N]
is used by the terminal to report all other types of messages when
they are triggered.
Format: [Ctrl-N]Message#[CR]
•
Message# range: 1 to 9999; limited to the subset used in the
application
Example: [Ctrl-N]637[CR]
•
The terminal reports that message #637 was triggered.