Fieldbus Specialists AT-FBUS User manual

Getting Started with
Your AT-FBUS and the
NI-FBUSSoftware for
Windows NT
February 1997 Edition
Part Number 321014C-01
© Copyright 1995, 1997 National Instruments Corporation.
All Rights Reserved.

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Important Information
Warranty The AT-FBUS hardware is warranted against defects in materials and workmanship for a period of one year from the date
of shipment, as evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace
equipment that proves to be defective during the warranty period. This warranty includes parts and labor.
The media on which you receive National Instruments software are warranted not to fail to execute programming
instructions, due to defects in materials and workmanship, for a period of 90 days from date of shipment, as evidenced by
receipts or other documentation. National Instruments will, at its option, repair or replace software media that do not
execute programming instructions if National Instruments receives notice of such defects during the warranty period.
National Instruments does not warrant that the operation of the software shall be uninterrupted or error free.
A Return Material Authorization (RMA) number must be obtained from the factory and clearly marked on the outside of
the package before any equipment will be accepted for warranty work. National Instruments will pay the shipping costs of
returning to the owner parts which are covered by warranty.
National Instruments believes that the information in this manual is accurate. The document has been carefully reviewed
for technical accuracy. In the event that technical or typographical errors exist, National Instruments reserves the right to
make changes to subsequent editions of this document without prior notice to holders of this edition. The reader should
consult National Instruments if errors are suspected. In no event shall National Instruments be liable for any damages
arising out of or related to this document or the information contained in it.
EXCEPT AS SPECIFIED HEREIN, NATIONAL INSTRUMENTS MAKES NO WARRANTIES, EXPRESS OR
IMPLIED, AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. CUSTOMER’S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR
NEGLIGENCE ON THE PART OF NATIONAL INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT
THERETOFORE PAID BY THE CUSTOMER. NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR
DAMAGES RESULTING FROM LOSS OF DATA, PROFITS, USE OF PRODUCTS, OR INCIDENTAL OR
CONSEQUENTIAL DAMAGES, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. This limitation of the liability
of National Instruments will apply regardless of the form of action, whether in contract or tort, including negligence. Any
action against National Instruments must be brought within one year after the cause of action accrues. National Instruments
shall not be liable for any delay in performance due to causes beyond its reasonable control. The warranty provided herein
does not cover damages, defects, malfunctions, or service failures caused by owner’s failure to follow the National
Instruments installation, operation, or maintenance instructions; owner’s modification of the product; owner’s abuse,
misuse, or negligent acts; and power failure or surges, fire, flood, accident, actions of third parties, or other events outside
reasonable control.
Copyright Under the copyright laws, this publication may not be reproduced or transmitted in any form, electronic or mechanical,
including photocopying, recording, storing in an information retrieval system, or translating, in whole or in part, without
the prior written consent of National Instruments Corporation.
Trademarks BridgeVIEW, Lookout, NI-FBUS, and natinst.comare trademarks of National Instruments Corporation.
Product and company names listed are trademarks or trade names of their respective companies.
WARNING REGARDING MEDICAL AND CLINICAL USE OF NATIONAL INSTRUMENTS PRODUCTS
National Instruments products are not designed with components and testing intended to ensure a level of reliability
suitable for use in treatment and diagnosis of humans. Applications of National Instruments products involving medical or
clinical treatment can create a potential for accidental injury caused by product failure, or by errors on the part of the user
or application designer. Any use or application of National Instruments products for or involving medical or clinical
treatment must be performed by properly trained and qualified medical personnel, and all traditional medical safeguards,
equipment, and procedures that are appropriate in the particular situation to prevent serious injury or death should always
continue to be used when National Instruments products are being used. National Instruments products are NOT intended
to be a substitute for any form of established process, procedure, or equipment used to monitor or safeguard human health
and safety in medical or clinical treatment.

FCC/DOC Radio Frequency Interference
Class B Compliance
This equipment generates and uses radio frequency energy and, if not installed and used in strict
accordance with the instructions in this manual, may cause interference to radio and television reception.
Classification requirements are the same for the Federal Communications Commission (FCC) and the
Canadian Department of Communications (DOC). This equipment has been tested and found to comply
with the following two regulatory agencies:
Federal Communications Commission
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
Notices to User: Changes or modifications not expressly approved by National Instruments could void
the user’s authority to operate the equipment under the FCC Rules.
This device complies with the FCC rules only if used with shielded interface cables of
suitable quality and construction. National Instruments used such cables to test this
device and provides them for sale to the user. The use of inferior or nonshielded
interface cables could void the user's authority to operate the equipment under the
FCC rules.
If necessary, consult National Instruments or an experienced radio/television technician for additional
suggestions. The following booklet prepared by the FCC may also be helpful: Interference to Home
Electronic Entertainment Equipment Handbook. This booklet is available from the U.S. Government
Printing Office, Washington, DC 20402.
Canadian Department of Communications
This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment
Regulations.
Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel
brouilleur du Canada.

© National Instruments Corporation v AT-FBUS for Windows NT
Table
of
Contents
About This Manual
How to Use the Manual Set...........................................................................................ix
Organization of This Manual.........................................................................................x
Conventions Used in This Manual ................................................................................x
Related Documentation .................................................................................................xi
Customer Communication.............................................................................................xii
Chapter 1
Introduction
What You Need to Get Started......................................................................................1-1
Hardware Description....................................................................................................1-1
Software Description.....................................................................................................1-2
Optional Fieldbus Network Tools .................................................................................1-3
Chapter 2
Hardware Installation and Configuration
Evaluate the Hardware Settings.....................................................................................2-1
Install the Hardware.......................................................................................................2-2
Configure the Hardware (Optional)...............................................................................2-3
Locate Conflict-Free Resources for Your AT-FBUS......................................2-4
Selecting the Memory Base Address...............................................................2-5
Selecting the Interrupt Request Line...............................................................2-7

Table of Contents
AT-FBUS for Windows NT vi © National Instruments Corporation
Chapter 3
Software Installation and Configuration
Install the Software ....................................................................................................... 3-1
Configure the NI-FBUS Software................................................................................. 3-2
Configure the Base Address and IRQ............................................................. 3-2
Configure the Fieldbus Communication Parameters and Interface Name...... 3-3
Configure the Link Active Schedule File ....................................................... 3-3
Using the NI-FBUS Configuration Utility after Installation........................... 3-4
Test the Installation....................................................................................................... 3-5
Chapter 4
Begin to Use the NI-FBUS Software
Starting NI-FBUS ......................................................................................................... 4-1
Writing and Compiling Your Application .................................................................... 4-2
Using the NI-FBUS Dialog Utility................................................................................ 4-2
Appendix A
Specifications
Appendix B
Customer Communication
Glossary
Figures
Figure 2-1. Installing the AT-FBUS Board.................................................................. 2-2
Figure 2-2. Fieldbus Connector Pinout for the AT-FBUS........................................... 2-3
Figure 2-3. AT-FBUS/2 Parts Locator Diagram.......................................................... 2-4
Figure 2-4. Memory Base Address Switch Settings for 0D0000................................. 2-7
Figure 2-5. Interrupt Jumper Setting for IRQ11 .......................................................... 2-8

Table of Contents
© National Instruments Corporation vii AT-FBUS for Windows NT
TablesTable 2-1. Hardware Default Settings..........................................................................2-1
Table 2-2. Memory Base Address Switch Settings ......................................................2-5
Table A-1. Electrical Characteristics for the AT-FBUS...............................................A-1
Table A-2. Physical Characteristics for the AT-FBUS.................................................A-1
Table A-3. Environmental Characteristics for the AT-FBUS.......................................A-2

© National Instruments Corporation ix AT-FBUS for Windows NT
About
This
Manual
This manual contains instructions on how to install and configure the
National Instruments AT-FBUS interface board and the NI-FBUS
software for Windows NT. The AT-FBUS board is intended for use in
PCs equipped with 16-bit ISA slots. The NI-FBUS software is intended
for use with Windows NT. This manual assumes that you are already
familiar with Windows NT.
This manual is included with either the NI-FBUS Communications
Manager kit or the NI-FBUS Configurator kit.
How to Use the Manual Set
Use this getting started manual to install and configure your AT-FBUS
board and the NI-FBUS software for Windows NT.
Use the NI-FBUS Function Reference Manual for Windows NT to look
up specific information about NI-FBUS functions, such as input and
output parameters, syntax, and error messages.
Use the NI-FBUS User Manual for Windows NT to learn how to use the
NI-FBUS interface for your application.
If you are using the NI-FBUS Configurator, use the NI-FBUS
Configurator User Manual to install the NI-FBUS Configurator software
for Windows NT.

About This Manual
AT-FBUS for Windows NT x © National Instruments Corporation
Organization of This Manual
This manual is organized as follows:
• Chapter 1, Introduction, lists what you need to get started and
includes a brief description of the AT-FBUS board and the NI-FBUS
software.
• Chapter 2, Hardware Installation and Configuration, contains
instructions on how to install and configure your AT-FBUS board.
• Chapter 3, Software Installation and Configuration, contains
instructions on how to install and configure your NI-FBUS software
for Windows NT.
• Chapter 4, Begin to Use the NI-FBUS Software, helps you get started
using the NI-FBUS software for Windows NT.
• Appendix A, Specifications, describes the electrical, physical, and
environmental characteristics of the AT-FBUS hardware and the
recommended operating conditions.
• Appendix B, Customer Communication, contains forms you can use
to request help from National Instruments or to comment on our
products and manuals.
• The Glossary contains an alphabetical list and description of terms
used in this manual, including abbreviations, acronyms, metric
prefixes, mnemonics, and symbols.
Conventions Used in This Manual
This manual uses the following conventions:
» The » symbol leads you through nested menu items and dialog box
options to a final action. The sequence File»Page Setup»Options»
Substitute Fonts directs you to pull down the File menu, select the
Page Setup item, select Options, and finally select the Substitute Fonts
options from the last dialog box.
AT-FBUS In this manual, the term AT-FBUS refers to both the single-port
AT-FBUS board and the dual-port AT-FBUS/2 board, unless otherwise
indicated.

About This Manual
© National Instruments Corporation xi AT-FBUS for Windows NT
bold Bold text denotes the names of menus, menu items, parameters, dialog
boxes, dialog box buttons or options, icons, windows, Windows NT tabs,
or LEDs.
bold italic Bold italic text denotes a note, caution, or warning.
italic Italic text denotes emphasis, a cross reference, or an introduction to a key
concept. This font also denotes text for which you supply the appropriate
word or value, as in Windows 3.x.
italic monospace Italic text in this font denotes that you must supply the appropriate words
or values in the place of these items.
monospace Text in this font denotes text or characters that you should literally enter
from the keyboard, sections of code, programming examples, and syntax
examples. This font is also used for the proper names of disk drives,
paths, directories, programs, subprograms, subroutines, device names,
functions, operations, variables, filenames and extensions, and for
statements and comments taken from programs.
NI-FBUS In this manual, the term NI-FBUS refers to the NI-FBUS
Communications Manager.
paths Paths in this manual are denoted using backslashes (\) to separate drive
names, directories, folders, and files.
Related Documentation
The following documents contain information that you may find helpful
as you read this manual:
• Fieldbus Standard for Use in Industrial Control Systems, Part 2,
ISA-S50.02.1992
• Fieldbus Foundation Specification
• Fieldbus Foundation System Management Services
• Function Block Application Process, Part 1
• Function Block Application Process, Part 2

About This Manual
AT-FBUS for Windows NT xii © National Instruments Corporation
Customer Communication
National Instruments wants to receive your comments on our products
and manuals. We are interested in the applications you develop with our
products, and we want to help if you have problems with them. To make
it easy for you to contact us, this manual contains comment and
configuration forms for you to complete. These forms are in Appendix B,
Customer Communication, at the end of this manual.

© National Instruments Corporation 1-1 AT-FBUS for Windows NT
Introduction
1
Chapter
This chapter lists what you need to get started and includes a brief
description of the AT-FBUS board and the NI-FBUS software.
What You Need to Get Started
To install your NI-FBUS software, you need the following items:
❑ AT-FBUS plug-in board
❑ Cable compliant with the Fieldbus Standard for Use in Industrial
Control Systems, Part 2, ISA-S50.02.1992
❑ Installation disks
❑ Windows NT version 3.51 or 4.0 installed on your computer
Hardware Description
The AT-FBUS is a plug-in board that handles communication between
network-configurable devices that comply with the Fieldbus Foundation
H1 specification and a PC AT-compatible computer that has 16-bit ISA
slots. The AT-FBUS uses the Intel 386EX embedded processor, shared
memory, and an interrupt to communicate with its driver. The AT-FBUS
supports the fieldbus transfer rate of 31.25 kb/s.
The single-port AT fieldbus interface is called the AT-FBUS and the
dual-port AT fieldbus interface is called the AT-FBUS/2. In this manual,
the term AT-FBUS refers to both the single-port AT-FBUS board and the
dual-port AT-FBUS/2 board, unless otherwise indicated.

Chapter 1 Introduction
AT-FBUS for Windows NT 1-2 © National Instruments Corporation
Software Description
Your kit includes either the NI-FBUS software or NI-FBUS Configurator
software. The NI-FBUS software for Windows NT is a high-level API
you can use to interface with the National Instruments FOUNDATION
Fieldbus (FF) communication stack and hardware. NI-FBUS hides the
low-level protocol details of interface boards, Virtual Communication
Relationships (VCRs), connections, addresses, and Object Dictionary
(OD) indices. NI-FBUS interfaces to the Fieldbus Messaging
Specification (FMS) for you so you can use fieldbus communication
protocols with only a general knowledge of the fieldbus architecture.
For a description of the NI-FBUS Configurator, refer to the Optional
Fieldbus Network Tools section later in this chapter.
The NI-FBUS software and NI-FBUS Configurator software include the
following components:
• NI-FBUS process executable file
• Binary image of the Fieldbus Foundation communication stack
• NI-FBUS Configuration utility
• Windows NT kernel mode driver
The NI-FBUS software also includes the following components not
included with the NI-FBUS Configurator software:
• Windows Dynamic Link Libraries (DLLs)
• Static library for linking with the NI-FBUS process
• NI-FBUS Dialog utility
• C language include files
Note: Because of some bug fixes and specification changes, the
communication stack that NI-FBUS uses is not compatible with the
communication stack in a Round Card using a National Instruments
Device Developer Kit Release older than Version 2.0. If you are using
National Instruments Round Card software older than Version 2.0, you
need to upgrade your software to Version 2.0. Contact National
Instruments for ordering information.

Chapter 1 Introduction
© National Instruments Corporation 1-3 AT-FBUS for Windows NT
Optional Fieldbus Network Tools
Your kit includes either the NI-FBUS software or NI-FBUS Configurator
software for Windows NT. In addition, you can order the NI-FBUS
Monitor, BridgeVIEW, and Lookout. If you have not already done so,
you can also order the NI-FBUS Configurator.
The NI-FBUS Monitor helps you monitor and debug fieldbus data traffic.
It symbolically decodes data packets from the fieldbus, monitors the live
list, and performs statistical analysis of packets. You can use the
NI-FBUS Monitor to debug device and host applications. To order the
NI-FBUS Monitor, contact National Instruments.
The NI-FBUS Configurator helps you configure a fieldbus network. It
also provides a graphical environment for you to configure function
block linkages, and to set data values and tags. It can automatically
generate the schedule for the network, and can configure field devices
and hosts to transmit and receive alarms and trends. If you have not
already ordered the NI-FBUS Configurator, contact National Instruments
for availability information.
BridgeVIEW helps you perform data acquisition and analysis, create a
man-machine interface (MMI), or develop an advanced supervisory
control application in a graphical development environment.
BridgeVIEW includes real-time process monitoring, historical trending,
alarm and event reporting, online configuration, and PLC connectivity.
To order BridgeVIEW, contact National Instruments.
Lookout helps you create graphical representations on a computer screen
of real-world devices such as switches, dial gauges, chart recorders,
pushbuttons, knobs, sliders, and meters. After linking these images to
your field instruments, you can configure Lookout to generate alarms, log
data to disk, animate custom graphics, print reports, automatically adjust
setpoints, historically trend information, warn operators of malfunctions,
and so on. To order Lookout, contact National Instruments.

© National Instruments Corporation 2-1 AT-FBUS for Windows NT
Hardware Installation
and Configuration
2
Chapter
This chapter contains instructions on how to install and configure your
AT-FBUS board.
Warning: Before you remove the board from the package, touch the antistatic
plastic package to a metal part of your system chassis to discharge
electrostatic energy, which can damage several components on your
AT-FBUS board.
Evaluate the Hardware Settings
Table 2-1 shows the default hardware settings for the AT-FBUS board.
Table 2-1. Hardware Default Settings
AT-FBUS Board Setting Default
Memory Base Address (hex) D0000 (physical)
Interrupt Line (IRQ) 11
The AT-FBUS board default settings are suitable for most
PC AT-compatible computer systems. However, if these default settings
conflict with another device in your system, or if you need to install more
than one AT-FBUS board, you must change the default settings before
you install the board.
To change the default settings of the AT-FBUS board, refer to the
Configure the Hardware (Optional) section of this chapter. If you do not
need to reconfigure the board, proceed to the next section, Install the
Hardware.

Chapter 2 Hardware Installation and Configuration
AT-FBUS for Windows NT 2-2 © National Instruments Corporation
Install the Hardware
To install the AT-FBUS board, complete the following steps:
1. Power off your computer. Keep the computer plugged in so that it
remains grounded while you install the AT-FBUS board.
2. Remove the top cover or access port of the I/O channel.
3. Remove the expansion slot cover on the back panel of the computer.
4. As shown in Figure 2-1, insert the AT-FBUS board into any unused
16-bit ISA slot with the fieldbus connector sticking out of the
opening on the back panel. It might be a tight fit, but do not force the
board into place.
Figure 2-1. Installing the AT-FBUS Board
5. Screw the mounting bracket of the AT-FBUS board to the back
panel rail of the computer.
6. Check the installation.

Chapter 2 Hardware Installation and Configuration
© National Instruments Corporation 2-3 AT-FBUS for Windows NT
7. Replace the top cover or access port to the I/O channel.
8. Connect the AT-FBUS to the fieldbus network.
If you want to make your own fieldbus cable, make sure that it uses
pins 6 and 7 for the fieldbus signals, as specified in the Fieldbus
Standard for Use in Industrial Control Systems, Part 2,
ISA-S50.02.1992. See Figure 2-2 for the connector pinout of the
AT-FBUS.
12345
6789
No Connection
No Connection 
No Connection
No Connection
No Connection
No Connection
No Connection
Data - 
Data +
Figure 2-2. Fieldbus Connector Pinout for the AT-FBUS
Note: On the AT-FBUS/2, the top connector is port 1 and the lower connector
is port 2.
9. Power on your computer.
After you have installed your AT-FBUS board, and you are ready to
install the NI-FBUS software, refer to Chapter 3, Software Installation
and Configuration, for instructions on how to install the software.
Configure the Hardware (Optional)
Follow the instructions in this section if you need to change the hardware
default settings of the AT-FBUS board. Refer to the Evaluate the
Hardware Settings section at the beginning of this chapter for reasons to
change the default settings of your AT-FBUS board.

Chapter 2 Hardware Installation and Configuration
AT-FBUS for Windows NT 2-4 © National Instruments Corporation
Figure 2-3 shows the location of the switches, jumpers, and two
connectors on the AT-FBUS/2 board. However, if you are using the
AT-FBUS, your board has only one connector.
1
456
2
3


1 Product Name 3 Fieldbus Connectors 5 Switch for Base I/O Address
2 Serial Number 4 Jumpers for IRQ 6 Assembly Number
Figure 2-3. AT-FBUS/2 Parts Locator Diagram
Locate Conflict-Free Resources for Your AT-FBUS
To locate conflict-free resources, you can use the Microsoft utility
Windows NT Diagnostics. This utility lists the I/O port addresses,
interrupt levels, and DMA channels that your system is currently using.
The resources not listed by this utility are conflict-free; you can use them
for your fieldbus interface. To use this utility, double-click on the
Windows NT Diagnostics icon in the Administrative Tools program
group.

Chapter 2 Hardware Installation and Configuration
© National Instruments Corporation 2-5 AT-FBUS for Windows NT
Selecting the Memory Base Address
The AT-FBUS board is a memory-mapped device, which means that the
driver software can use the AT-FBUS memory registers as if they were
standard memory. The memory base address of the AT-FBUS is the first
position in the total memory address space occupied by the AT-FBUS.
The AT-FBUS is configured to use memory base address D0000 hex by
default. With this setting, the board uses the memory space from D0000
hex through D4000 hex. If this address range is already used by another
device, or if you are installing more than one board, complete the
following steps to reconfigure the memory base address setting. If you
are installing more than one AT-FBUS board, each board must use a
unique memory base address. Your computer’s conventional DRAM and
all other devices cannot use the memory space you assign to the
AT-FBUS board.
1. Choose a new memory base address.
You can configure the AT-FBUS to use lower or upper memory.
Lower memory is the memory residing in the first megabyte of
address space. Upper memory is any memory that resides above the
first megabyte. Because the AT bus can only access the first 16 MB
of address space, and the AT-FBUS must have a unique base address
in memory, you must have 8 MB or less of DRAM in your machine
to place the AT-FBUS in upper memory. If these conditions are met,
you must locate the AT-FBUS above your conventional memory and
below the 16 MB upper limit for addresses.
Table 2-2 lists the possible switch settings, the corresponding
memory base address, and the memory space used for each setting.
Bold italic denotes the default setting.
Table 2-2. Memory Base Address Switch Settings
Switch Setting
SW1 SW2 SW3 SW4 SW5 SW6 Base Address
ON ON OFF ON ON OFF 0C0000
ON ON OFF ON OFF OFF 0C4000
ON ON OFF OFF ON OFF 0C8000
ON ON OFF OFF OFF OFF 0CC000
ON ON ON ON ON OFF 0D0000
ON ON ON ON OFF OFF 0D4000

Chapter 2 Hardware Installation and Configuration
AT-FBUS for Windows NT 2-6 © National Instruments Corporation
Table 2-2. Memory Base Address Switch Settings (Continued)
Switch Setting
SW1 SW2 SW3 SW4 SW5 SW6 Base Address
ON ON ON OFF ON OFF 0D8000
ON ON ON OFF OFF OFF 0DC000
ON OFF OFF ON ON OFF 0E0000
ON OFF OFF ON OFF OFF 0E4000
ON OFF OFF OFF ON OFF 0E8000
ON OFF OFF OFF OFF OFF 0EC000
ON OFF ON ON ON OFF 0F0000
ON OFF ON ON OFF OFF 0F4000
ON OFF ON OFF ON OFF 0F8000
ON OFF ON OFF OFF OFF 0FC000
OFF ON OFF ON ON OFF 8C0000
OFF ON OFF ON OFF OFF 8C4000
OFF ON OFF OFF ON OFF 8C8000
OFF ON OFF OFF OFF OFF 8CC000
OFF ON ON ON ON OFF 8D0000
OFF ON ON ON OFF OFF 8D4000
OFF ON ON OFF ON OFF 8D8000
OFF ON ON OFF OFF OFF 8DC000
OFF OFF OFF ON ON OFF 8E0000
OFF OFF OFF ON OFF OFF 8E4000
OFF OFF OFF OFF ON OFF 8E8000
OFF OFF OFF OFF OFF OFF 8EC000
OFF OFF ON ON ON OFF 8F0000
OFF OFF ON ON OFF OFF 8F4000
OFF OFF ON OFF ON OFF 8F8000
OFF OFF ON OFF OFF OFF 8FC000