and control for all controllers, both high level and low level application
specific. Operations shall be menu selected. Menu selections shall be
made with a mouse.
a.
Menu System: Menu system shall allow an operator to select a
particular function or access a particular screen through
successive menu penetration.
b.
Controller Parameter Modification: The workstation software shall
be an interface for performance specified in paragraph entitled
"Parameter Modification" and available through direct connection
of a computer to a digital controller. Parameter modification
shall require only that an operator "fill in the blank" for a
parameter on a screen requesting the information in plain
language. Parameter modifications shall download to the
appropriate controllers at operator request.
c.
Program modification: For systems using a line-by-line programming
language, provide an off-line text editor, similar to a BASIC
program editor, permitting modification of controller resident
control programs. For systems using block programming languages
provide a capability for linking blocks together to create new
programs or modify existing programs. Program modifications shall
download to appropriate controllers at operator request.
2.1.4.3
Graphic-Based Software
The workstation shall use graphic-based software to provide a user-friendly
interface to the DDC system. Graphic-based software shall provide
graphical representation of the building, the buildings mechanical systems,
and the DDC system. The current value and point name of every I/O point
shall be shown on at least one graphic and in its appropriate physical
location relative to building and mechanical systems.
a.
Graphics shall closely follow the style of the control drawings in
representing mechanical systems, sensors, controlled devices, and
point names.
b.
Graphic Title: Graphics shall have an identifying title visible
when the graphic is viewed.
c.
Dynamic Update: When the workstation is on-line with the control
system, point data shall update dynamically on the graphic images.
d.
Graphic Penetration: Provide graphic penetration when the
capability exists. For systems without graphic penetration,
provide menu penetration for selection of individual graphics to
give the same hierarchical affect provided by graphic penetration.
e.
Graphic Types: Graphic-based software shall have graphics of the
building exterior, building section, floor plans, and mechanical
systems. Provide the following graphics:
(1) Building Exterior Graphic:
Show exterior architecture, major
landmarks, and building number.
(2) Building Section Graphic: Show floors in section graphic
with appropriate floor name on each floor.
SECTION 15910N
Page 33
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