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Lubricated Rotary Vane Laboratory Vacuum Systems
A.1 Board Confi gurations
The source control system is comprised of four
(4) different printed circuit boards (PCBs) with
interconnecting wiring (RS-485 or Ethernet) for
internal communications between the boards.
See Figure A.2.
PCB1: Display Board for 5.7" Touch Screen
Display
PCB2: Display Board for 3.5" Touch Screen
Display
PCB3: Master Source Controller Board
PCB4: Pump Controller Board
In a standard laboratory vacuum duplex system,
the PCB configuration consists of the following
quantities and types of boards:
PCB1 – (1) One for the Main 5.7" display
PCB2 – (2) One for each of the Unit 3.5" displays
PCB3 – (1) Master Controller
PCB4 – (2) One for each pump
In a standard laboratory vacuum quadruplex
system, the PCB configuration consists of the
following quantities and types of boards:
PCB1 – (1) One for the Main 5.7" display
PCB2 – (4) One for each of the Unit 3.5" displays
PCB3 – (1) Master Controller
PCB4 – (4) One for each pump
A.2 PCB1 (5.7" Display Controller)
A.2.1 Basic Software Architecture
The primary purpose of PCB1 is to drive the LCD
display for the 5.7" Master screen. Its other func-
tions include the following:
1. Communicate to the Master Controller Board
(PCB3) via a RS-485 bus to relay commands
from the touch screen interface and display
messages from the master controller.
2. Interface to the 5.7" Display touch screen to
4107 9021 88.01
interpret the user interaction.
3. Drive the 24VDC local alarm horn when sig-
naled by the master controller via the RS-485
bus.
4. Read the input from the motion detector at
the front panel and relay the status to the
master controller so it can distribute the
information to the other pump controllers
and then to their corresponding 3.5" display
boards (PCB2).
5. Accept new firmware via the Ethernet jack
when connected to a PC configured with
genuine BeaconMedæs software for repro-
gramming.
A.2.2 5.7" User Interface for Source Systems
Figure A.3 Main Screen
The primary master screen user interface is dis-
played on a 5.7" 640 x 480 pixel display as shown
in Figure A.3. The interface is designed such that
any information can be accessed with a minimal
amount of touches by the user.
The 5.7" screen is divided into two main areas –
the top portion above the toolbar which changes
depending on the icon selected on the toolbar
and bottom portion which contains the toolbar
(Figure A.4) and is available on most screens.
Figure A.4 5.7" Screen Toolbar
A-2
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