Rockwell Automation 2706-M1 MESSAGEVIEW 421 HARDWARE MANUAL - Manual (Page 81)

4–21 Running Applications
Publication 2706–816
Example: [Ctrl-U]7\ 22[CR]
•
The terminal at node #22 unlatches function key #7. The terminal
then sends a Ctrl-F message when the message is received and
acted upon.
Messages from the MessageView terminal:
Send data from entry variables [Ctrl-I]
Used by the terminal to send input data to the ASCII device.
Format: [Ctrl-I]Message#\ Variable Data\ Variable Position[CR]
•
Message# range: 1 to 9999; limited to the subset used in the
application
•
Variable Data range: –32768 to +65535 for numeric data
any ASCII character for ASCII data
•
Variable Position range: 1 to 10
•
MV Address range: 1 to 127 for a single node; 127 to address all
devices
Example: [Ctrl-I]64\ 44232\ 3[CR]
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The terminal sends the value 44232 which was input in the third
variable in message #64.
Note: If users are entering data [Ctrl-I] at the same time at different
terminals in the network, they may cause data collisions. The
MessageView node address was intentionally left off the Data Entry
[Ctrl-I] response message to discourage this situation.
!
ATTENTION: If the ASCII network has more than
one terminal, data should not be sent from any terminal
to the ASCII device. Data collisions may result if the
ASCII device has data coming from more than one
source.
Acknowledge an alarm message with [Ctrl-K]
Used by the terminal when the operator presses the ACK key in
response to an alarm message.
Format: [Ctrl-K]Message#[CR]
•
Message# range: 1 to 9999; limited to the subset used in the
application