Rockwell Automation 2706-MB1 MESSAGEVIEW 421 SOFTWARE MANUAL - Manual (Page 93)

5–4 Communications Overview
Publication 2706-817
If the Front Panel Editor “Change Port To:” menu item reads:
•
“Change Port To: MessageBuilder”, the RS-232 port is currently
set to communicate with the Auxiliary Device the application is
designed for.
•
“Change Port To: [ASCII Triggering, Slave Device, Slave Port, or
ASCII Input]”, the RS-232 port is currently set to communicate
with the computer.
The name in the “Change Port To:” menu item is the type of
Auxiliary Device the application is designed for.
Note: The physical connection between the computer and the
terminal does not have to be maintained after an application is
downloaded. If it is not maintained, the connection must be
re-established when a file is to be uploaded to or downloaded from
the computer.
RS-232 Port Power-Up attribute
The application sets the MessageView terminal’s RS-232 port to
power up to one of the two possible settings when the application
starts running:
•
MessageBuilder parameters
•
auxiliary port parameters.
The Port Power-Up attribute is configured in the Advanced tab in the
Terminal Setup dialog. See Page 10–16.
MessageView terminal hardware/firmware
MessageBuilder software has been designed to configure the RS-232
port parameters for communication with a device compatible with
the MessageView terminal’s hardware/firmware configuration.
If the terminal’s RS-232 port is used to communicate with:
•
the computer only, the port parameters do not have to be
configured in the application. They are predefined in the
INTERCHANGE Configuration Utility (see Page 5–2) and the
MessageView terminal’s firmware.
•
an Auxiliary Device while the application is running, the port
parameters must be configured in the application to match those
of the auxiliary device.