MC³ 24.96.EX O&M Manual Page 5 08/14/01 4:34 PM/LDD
Display Assembly
The Display Assembly consists of a Touch Keypad, an LCD Board and an LCD Display.
LCD Board
This board is used to interface the LCD Display and the Touch Keypad to the LTI Board and
provides the proper voltage for the back light of the LCD Display. There is a potentiometer for
adjusting the contrast of the LCD Display. Also on specific LCD Boards containing an LS220 type
inverter there is a Brightness Adjust potentiometer.
LCD Display
The LCD Display is a 240 horizontal by 128 vertical pixel resolution monochrome graphical display.
The display works in conjunction with the Touch Screen to provide a Graphical User Interface.
Touch Keypad
The Touch Keypad is mounted directly to the bezel of the MC³ Controller. It consists of a four row
by eight column touch cell array. The Touch Keypad works with the LCD Display to provide a way
for you to interface with the controller.
SOFTWARE
The MC³ software consists of three primary parts: The BIOS (Basic Input / Output System), a
register database, and the actual application software. The application and database is specific for
the 24.96.EX controller. The BIOS is common for many different applications.
Application Software
Application Software is written for each specific type of “job” that the controller is to perform.
This software will allow you to turn on and off different modes of operation which allows you to
configure the software for your specific process
There are four modes of operation of this software package:
Belt Scale – Basic model measuring the belt load and speed and calculates the feedrate
and totalizes.
Batching Belt Scale – Allows you to batch out predefined lots of material across the belt.
Feeder – The MC³ controls the speed of the belt or pre-feeding device to follow a feedrate
setpoint.
Batching Feeder – Allows you to batch out material at specific feedrates controlled by the
MC³. There is a feedrate setpoint and a batch setpoint.
BIOS
The BIOS is the portion of the software which directly manipulates the hardware. It is the interface
between the application and the hardware.
Register Database
The Register Database is a set of variables used in the software application. It is provided to allow
structured access through Serial Communications to variables used in the MC³. A numeric listing
of registers for each application is available from Merrick. Procedures for using Serial
Communications to access the register list are also provided in [1].
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