Rockwell Automation 2706-MB1 MESSAGEVIEW 421 SOFTWARE MANUAL - Manual (Page 312)

Glossary G–4
Publication 2706-817
Device – Any of a number of mechanical units, such as Logic
Controllers, ASCII Input devices and computers that may be
connected to a MessageView terminal. A MessageView terminal is
itself a device.
DF1 – An Allen-Bradley communications protocol used to transfer
an application or other data between a computer and a MessageView
terminal’s RS-232 port.
Dialog – A window that opens to request information. Dialogs have
options you must choose before MessageBuilder software can carry
out a command.
Direct I/O – One of the two methods of data transfer used by a
Remote I/O port on a MessageView terminal. See also Block
Transfer.
Double-Click – Press and release the left mouse button twice
quickly, without moving the mouse.
Drag – Highlight text by pressing and holding down the left mouse
button while moving the mouse.
Download – The process of transferring data from a computer to a
MessageView terminal, or storing an application as a DOS file.
Specific download commands load an Application in the terminal,
change the date or time in the RTC, or update Firmware.
Driver – A personal computer’s ports are configured by a set of
communication parameters collectively called a driver, installed by
INTERCHANGE software. A MessageView terminal’s Ports are
configured as part of its application.
E –
Edit Box – The place where the active Message highlighted in the
Message List is edited. Only one message is edited at a time. The
message in the Edit Box may have its text entered and edited, its
Attributes assigned, Variables and Graphics embedded, and (in
Applications designed for MessageView 421F terminals) Function
Keys enabled.
Exceptions Dialog – A list of all the warning and error messages
generated during a Validate operation.
Export – The process of changing Tags automatically from
MessageBuilder format to a different format.