Rockwell Automation 2706-MB1 MESSAGEVIEW 421 SOFTWARE MANUAL - Manual (Page 314)

Glossary G–6
Publication 2706-817
I –
Import – The process of changing Tags automatically from a
different format into MessageBuilder format.
Inverse Video – A Message or part of a message that is emphasized
by having its colors reversed in the MessageView terminal display.
ISA – Acronym for Instrumentation Society of America.
MessageBuilder software includes a set of standard ISA Bitmap
Graphic symbols that can be embedded in a message.
J –
Jog Feature – One aspect of the Auto Clear attribute. When Auto
Clear is disabled for a Message that has embedded Function Keys,
jog feature is enabled. If the jog feature is disabled, the message is
terminated after one of its function keys is pressed. If the jog feature
is enabled, the message remains active until the terminal display is
cleared or the terminal is reset.
K –
Keypad – A set of keys on the MessageView terminal that the
terminal operator uses to input data, acknowledge messages and
access the Front Panel Editor. See also Numeric Keypad and
Function Keys.
L –
LED – Acronym for Light Emitting Diode. A MessageView 421F
terminal has a red LED beside each of the 16 Function Keys. These
LEDs may or may not reflect the condition of the function key,
depending on how they are set up in the Application.
Logic Controller – A device used to replace relay logic used for
sequencing, timing, and counting. Instead of physical wiring devices
such as relays, push buttons and limit switches, a logic controller
tests the state of inputs and sets outputs according to stored
programs. Also called programmable controller. See also SLC; PLC.
M –
Master Device – A device which controls one or more Slave
Devices. It sends Messages to be displayed by its slaves, and
controls the appearance of the message in the slave display. A
MessageView terminal with a Daughterboard and Firmware that
supports Slave Port can address up to 127 slave devices through its
RS-232 port.
MBA Format – See Application File.