DayTronic System 10 - 5 CRT Video Setup

5 CRT VIDEO SETUP
As you will soon discover, your B-sized mainframe’s extensive video capability is
one of its premium features. Every B-sized mainframe can store up to 100 sepa-
rate CRT VIDEO PAGE FORMATS (or “VIDEO PAGES”).*
Each video page can be used to display a large number of “live” System 10 data
channels either via digital readout or, if the
Model 10VGM500 Card is present,
via horizontal bargraph (see Section 17, below). The “live” states of system logic
bits can be displayed using specific “bit designator” words. You can cause “live”
alphanumeric messages to appear on display at appropriate times. When the
Model 10BDR64 History Card is present, “playback” channels containing locally
stored “historical” data can also be displayed (as explained in Section 18).
Any displayed data, logic-bit, message, or playback field—plus any adjacent “fixed
text” you want to associate with that field—can instantaneously exhibit one or a
combination of special
visual effects in order to highlight important data values
or call attention to various process trends, states, and alarm conditions. For the
10KN7’s monochrome display, these effects include
Blink, Flash, Reverse, and
Half Intensity. In addition to all possible background/foreground combinations of
the eight available colors, all color displays provide optional
Blink and Flash
enhancements.
Video pages can be quickly and easily composed by the operator, using simple
word-processor functions through the keyboard. If desired, a host computer can
recompose displayed pages, line by line, during the measurement and control
process. Video pages can also be transmitted to the computer, line by line, for
storage in the computer’s own memory. See Section 2.C.11 of the
System 10
Guidebook
for “Uploading, Downloading, and Revising Video Page Formats.”
In the present section, you will learn how to
• set important monitor parameters using the
VIDEO DISPLAY UNIT (VDU)
command
• call the mainframe’s Page Directory to display, using the
DIRECTORY (DIR)
command
• call a specific video page to display, using the
PAGE (PAG) command or key
• use the TEXT EDITOR to compose a video page for “live” data-channel read-
ings
•recall and save a composed page, using the
RECALL (RCL) and SAVE (SAV)
commands
• define a “logo” for the display billboard, using the
LOGO (LGO) command
• specify a system “sign-on page,” using the
SIGN-ON PAGE (SOP) command
NOTE: The creation of “bit-state” fields and the definition of
limit-dependent
visual effects
for channel data fields will be explained later, when we get to the
setup of system limit monitoring in Section 13. Note too that all the procedures
outlined here are discussed in greater detail in Section 2.C of the
System 10
Guidebook
. You should refer to this section if at any point you think that more
detailed information would be helpful to you.
B - 9
CRT VIDEO SETUP
“O NTHE A IR ” (B-S IZED )
* Usable video memory is normally 157 “blocks” of 64 bytes (or characters) each. A typical CRT
video page takes 5 to 7 memory blocks, with a nominal maximum of 32. In addition to provid-
ing the high-speed bargraph capability discussed in Section 17 of this booklet, the Model
10VGM500 Video Graphics Memory Option will increase the total video memory capacity
to 661 blocks (see also Section 3.C.3 of the System 10 Guidebook).