Section 4 Basic Operations; Operating Modes; Communications Modes; Echo And Non-Echo Modes - Honeywell VIP7201 Setup Manual

Section 4
BASIC OPERATIONS
The VIP7201 terminal operates in vari-
ous modes with different display attributes,
keyboard features, and communications
interfaces. The operator or the host chooses
among these features, selects those that
meet the requirements of the application,
and then sets the Configuration Line to the
appropriate bit settings.
This section describes all the VIP7201
terminal features, which can be selected on
the Configuration Line (see Figure 3-2 for
configuring these features).
4.1 OPERATING MODES
The VIP7201 terminal operates in four
modes: Normal, Graphic, Forms, and Monitor.
The VIP7201 Display Terminal User's
Reference Manual (Order No. CP92-00)
provides a complete description of these
operating modes. (To obtain copies of
CP92-00, refer to the Preface of this
Guide.)
Normal operation modes within this
terminal are the Character and Text modes.
In Character mode, the terminal transmits
codes immediately as they are generated by
a keystroke. In Text mode, data is trans-
mitted only after the operator presses the
XMIT key. (The function keys are an
exception to this - they transmit codes
immediately). This mode allows the
operator to edit and correct data before
transmitting it.
4.2 COMMUNICATIONS MODES
In
a~dition
to operational modes, there
are communications modes that are used in
conjunction with the operational modes.
4.2.1 Echo and Non-Echo Modes
The terminal can be set to either the
Echo or Non-Echo mode. In Echo mode,
codes are sent from the terminal to the
host, and the host must echo them back
before the terminal acts upon them. In Non-
Echo mode, codes are both transmitted and
acted upon directly by the terminal, with-
out the host echoing codes back to the
terminal.
4-1
4.2.2 Local and Online Modes
The terminal also operates in either
the Local or Online mode. In Local mode,
communications lines are ignored and key-
board entry is to the display unit only.
Host sequences, consequently, are ignored.
In Online mode, codes are sent to the host
and received from the host.
4.3 VISUAL ATTRIBUTES
At configuration time, one of or one
combination of the following visual attri-
butes can be defined for each location on
the screen:
• Inverse Video
• Blink
• Underline
• High or Low Intensity
Once defined, only that attribute or
combination may be assigned or not
assigned to each individual displayable
character by the host application software.
For example, if the combination Inverse
Video and Blink is configured, each dis-
playable character will either have no visual
attribute associated with it or it will be dis-
played in inverse video and will be blinking.
4.3.1 Inverse Video by Character
Normally, data is displayed in green
characters on a dark background. In inverse
video by character, characters will be dis-
played within a block on a green
background.
4.3.2 Inverse Video by Screen
Normally, data is displayed in green on
a dark background. In inverse video by
screen, the reverse is true - data is dark
and the background is green for the entire
screen.
4.3.3 Dual Intensity
Normally, data is displayed in high
intensity. The option exists, however, to
display the data in low intensity.
CP91-00A