Barco SERIAL COMMUNICATION LCD PROJECTOR User manual

BARCO PROJECTION SYSTEMS BARCO PROJECTION SYSTEMS
Date: 10.04.98 R5975236_r03
Date: 10.04.98 R5975236_r03
SERIAL COMMUNICATION
LCD PROJECTOR
USER'S MANUAL
SERIAL COMMUNICATION
LCD PROJECTOR
USER'S MANUAL

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Contents Contents

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Chapter 1 : Communication basics.
communicationprotocol .......................................... 1-3
communication settings .......................................... 1-4
hardware ................................................................. 1-6
syntax....................................................................1-11
Chapter 2 : Elementary commands
balance,decrement................................................. 2-2
balance, increment .................................................. 2-3
bass, decrement ..................................................... 2-4
bass, increment ...................................................... 2-5
brightness, decrement............................................. 2-6
brightness, increment .............................................. 2-7
color,decrement ..................................................... 2-8
color, increment ...................................................... 2-9
contrast, decrement ...............................................2-10
contrast, increment ................................................2-11
infrared control ....................................................... 2-12
mute audio, write off ............................................... 2-15
mute audio, write on ...............................................2-16
mute video, write off ................................................ 2-17
mute video, write on ............................................... 2-18
phase, decrement ..................................................2-19
phase, increment ................................................... 2-20
projector status, read .............................................2-21
projector status, write off ........................................2-23
projector status, write on ........................................2-24
sharpness, decrement............................................2-25
sharpness, increment .............................................2-26
source/slot, read number .......................................2-27
source/slot, write number ....................................... 2-29
source/slot, read number+mode ............................. 2-31
source/slot, write number+mode ............................2-34
tint, decrement ....................................................... 2-37
tint, increment ........................................................ 2-38
treble,decrement ...................................................2-39
contents contents
Chapter 1 : Communication basics.
communicationprotocol .......................................... 1-3
communication settings .......................................... 1-4
hardware ................................................................. 1-6
syntax....................................................................1-11
Chapter 2 : Elementary commands
balance,decrement................................................. 2-2
balance, increment .................................................. 2-3
bass, decrement ..................................................... 2-4
bass, increment ...................................................... 2-5
brightness, decrement............................................. 2-6
brightness, increment .............................................. 2-7
color,decrement ..................................................... 2-8
color, increment ...................................................... 2-9
contrast, decrement ...............................................2-10
contrast, increment ................................................ 2-11
infrared control ....................................................... 2-12
mute audio, write off ............................................... 2-15
mute audio, write on ...............................................2-16
mute video, write off................................................ 2-17
mute video, write on ............................................... 2-18
phase, decrement ..................................................2-19
phase, increment ................................................... 2-20
projector status, read .............................................2-21
projector status, write off ........................................2-23
projector status, write on ........................................2-24
sharpness, decrement............................................2-25
sharpness, increment .............................................2-26
source/slot, read number .......................................2-27
source/slot, write number ....................................... 2-29
source/slot, read number+mode ............................. 2-31
source/slot, write number+mode ............................2-34
tint, decrement ....................................................... 2-37
tint, increment ........................................................ 2-38
treble,decrement ...................................................2-39

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treble,increment ....................................................2-40
volume,decrement .................................................2-41
volume,increment ..................................................2-42
Chapter 3 : Advanced commands
balance,read .......................................................... 3-2
balance, write .......................................................... 3-4
bass, read ............................................................... 3-5
bass, write .............................................................. 3-7
brightness, read ...................................................... 3-8
brightness, write .....................................................3-10
contrast, read ......................................................... 3-11
contrast, write ........................................................3-14
dimming,decrement ..............................................3-16
dimming,increment................................................3-17
fade audio extern, decrement .................................3-18
fade audio extern, increment ..................................3-19
fade audio extern, read ...........................................3-20
fade audio extern, write ..........................................3-22
fade audio intern, decrement ..................................3-24
fade audio intern, increment ...................................3-25
fade audio intern, read ............................................ 3-26
fade audio intern, write ...........................................3-28
file, copy ................................................................3-30
file, delete ..............................................................3-32
file, list ...................................................................3-34
file, list active .........................................................3-37
file,move ................................................................3-39
file,rename ............................................................3-42
freeze,writeoff .......................................................3-45
freeze, write on ......................................................3-46
installation, read .....................................................3-47
installation, write ....................................................3-49
lamp, read run time ................................................3-50
lamp, read serial number ........................................3-52
lamp, read status ...................................................3-54
lamp, reset run time ...............................................3-56
contents contents
treble,increment ....................................................2-40
volume,decrement .................................................2-41
volume,increment ..................................................2-42
Chapter 3 : Advanced commands
balance,read .......................................................... 3-2
balance, write .......................................................... 3-4
bass, read ............................................................... 3-5
bass, write .............................................................. 3-7
brightness, read ...................................................... 3-8
brightness, write .....................................................3-10
contrast, read ......................................................... 3-11
contrast, write ........................................................ 3-13
dimming,decrement ..............................................3-15
dimming,increment................................................3-16
fade audio extern, decrement ................................. 3-17
fade audio extern, increment ..................................3-18
fade audio extern, read ........................................... 3-19
fade audio extern, write ..........................................3-21
fade audio intern, decrement ..................................3-23
fade audio intern, increment ................................... 3-24
fade audio intern, read ............................................ 3-25
fade audio intern, write ........................................... 3-27
file, copy ................................................................3-29
file, delete ..............................................................3-31
file, list ................................................................... 3-33
file, list active .........................................................3-36
file,move ................................................................3-38
file,rename ............................................................3-41
freeze,writeoff .......................................................3-44
freeze, write on ......................................................3-45
installation, read .....................................................3-46
installation, write ....................................................3-48
lamp, read run time ................................................3-49
lamp, read serial number ........................................ 3-51
lamp, read status ................................................... 3-53
lamp, reset run time ...............................................3-55

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lock audio, read .....................................................3-57
lock audio, write .....................................................3-59
phase, read ............................................................3-61
phase, write ...........................................................3-63
programmable blanking,write .................................. 3-65
projector, read run time ..........................................3-69
projector, read serial number .................................. 3-71
projector, read type ................................................3-73
projector, write address ..........................................3-75
sharpness, read .....................................................3-76
sharpness, write .....................................................3-78
shutter, close .........................................................3-80
shutter, open .......................................................... 3-82
shutter, read........................................................... 3-84
software,readlanguage .........................................3-86
software, read type .................................................3-88
software,readversion............................................. 3-90
sync, read ..............................................................3-92
sync, write fast ......................................................3-94
sync, write slow .....................................................3-95
text, write off ..........................................................3-96
text, write on ..........................................................3-97
treble, read .............................................................3-98
treble, write ..........................................................3-100
volume,read ......................................................... 3-101
volume,write ........................................................ 3-103
Appendix a: Command summary 2
Appendix b: Command summary 3
contents contents
llock audio, read .....................................................3-57
lock audio, write .....................................................3-59
phase, read ............................................................3-61
phase, write ...........................................................3-63
programmable blanking,write .................................. 3-65
projector, read run time ..........................................3-69
projector, read serial number .................................. 3-71
projector, read type ................................................3-73
projector, write address ..........................................3-75
sharpness, read .....................................................3-76
sharpness, write .....................................................3-78
shutter, close .........................................................3-80
shutter, open .......................................................... 3-82
shutter, read........................................................... 3-84
software,readlanguage .........................................3-86
software, read type .................................................3-88
software,readversion............................................. 3-90
sync, read ..............................................................3-92
sync, write fast ......................................................3-94
sync, write slow .....................................................3-95
text, write off ..........................................................3-96
text, write on ..........................................................3-97
treble, read .............................................................3-98
treble, write ..........................................................3-100
volume,read ......................................................... 3-101
volume,write ........................................................ 3-103
Appendix a: Command summary 2 .........................
Appendix b: Command summary 3

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Chapter 1:
Communication basics
Chapter 1:
Communication basics

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Communicationprotocolsummary
Start byte \xfe
Projector address
Commandbyte(s)
Data bytes(OPTIONAL)
Checksum byte
Stop byte \xff
Start byte
Thestart byte informs the projector (in case of transmission) orthe computer
(in case of reception) that a new data transfer will take place.
Projector address
The projector address defines the address of the projector the computer
wants to talk to (in case of transmission) or the address of the projector that
answers (in case of reception).
The maximum number of projectors that can be addressed by one computer
is 256.
Command byte(s)
There is at least one command byte to define the action to be performed.
Commandsthatare not often used or complex commands can take more than
one byte.
All command bytes that are sent by the computer to get information out of the
projector are repeated in the answer-data-transfer of the projector.
Data bytes(OPTIONAL)
Wheatherthecommand bytes are followedbyoneor more data bytes depends
on the contents of the command bytes.
(Some commands are not followed by data bytes at all !)
Communicationprotocolsummary
Start byte \xfe
Projector address
Commandbyte(s)
Data bytes(OPTIONAL)
Checksum byte
Stop byte \xff
Start byte
Thestartbyteinforms the projector (in case of transmission) or thecomputer
(in case of reception) that a new data transfer will take place.
Projector address
The projector address defines the address of the projector the computer
wants to talk to (in case of transmission) or the address of the projector that
answers (in case of reception).
The maximum number of projectors that can be addressed by one computer
is 256.
Command byte(s)
There is at least one command byte to define the action to be performed.
Commandsthatare not often used or complexcommandscantakemore than
one byte.
All command bytes that are sent by the computer to get information out of the
projector are repeated in the answer-data-transfer of the projector.
Data bytes(OPTIONAL)
Wheather the command bytes are followed by one or more data bytes
depends on the contents of the command bytes.
(Some commands are not followed by data bytes at all !)
communication protocol
Chapter 1: Communications basics communication protocol
Chapter 1: Communications basics

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Checksum byte
Thechecksumbyte is used to detect errors during transmission or reception.
Formula :
Checksum byte
= (Projector address + Command bytes + Data bytes) modulo 256
Stop byte
Thestop byte informs the projector (in case of transmission) orthe computer
(in case of reception) that the data transfer is complete and that the
interpretation of the command and data bytes can start.
Any command byte, data byte or checksum byte that equals \x80, \xfe
or \xff has to be converted !
Transmission :
- Instead of \x80, send \x80 followed by \x00.
- Instead of \xfe, send \x80 followed by \x7e.
- Instead of \xff, send \x80 followed by \x7f.
Reception :
- Replace \x80 followed by \x00 with \x80.
- Replace \x80 followed by \x7e with \xfe.
- Replace \x80 followed by \x7f with \xff..
Checksum byte
Thechecksum byte is used to detect errors during transmission orreception.
Formula :
Checksum byte
= (Projector address + Command bytes + Data bytes) modulo 256
Stop byte
The stop byte informs the projector (in case of transmission) or the computer
(in case of reception) that the data transfer is complete and that the
interpretation of the command and data bytes can start.
Any command byte, data byte or checksum byte that equals \x80, \xfe
or \xff has to be converted !
Transmission :
- Instead of \x80, send \x80 followed by \x00.
- Instead of \xfe, send \x80 followed by \x7e.
- Instead of \xff, send \x80 followed by \x7f.
Reception :
- Replace \x80 followed by \x00 with \x80.
- Replace \x80 followed by \x7e with \xfe.
- Replace \x80 followed by \x7f with \xff..
Chapter 1: Communications basics Chapter 1: Communications basics
communication protocol communication protocol

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Communication settings summary
Baud rate see baudrate table
Data bits 8
Parity no
Stop bits 1
Baud Rate
Defines the speed of the data transfer.
The baud rate can be set using the dip switches on the processor board of the
projector. Beforeopeningthe projector*, insure the projector is powered down
!!!
Check the baud rate table to set up the communication speed.
Consult the owners manual of the projector to change the baud rate setting.
*In some projectors, the Baud Rate must be set using the menu structure (see Owner's manual
of the projector).
Data Bits
Eight data bits are used for each character of the data transfer.
Parity
There is NO parity bit used to perform error checking.
Stop Bits
One stop bit is used to define the end of a character.
Chapter 1: Communications basics communication settings Chapter 1: Communications basics communication settings
Communication settings summary
Baud rate see baudrate table
Data bits 8
Parity no
Stop bits 1
Baud Rate
Defines the speed of the data transfer.
The baud rate can be set using the dip switches on the processor board of the
projector. Beforeopeningthe projector*, insure the projector ispowereddown
!!!
Check the baud rate table to set up the communication speed.
Consult the owners manual of the projector to change the baud rate setting.
*In some projectors, the Baud Rate must be set using the menu structure (see Owner's
manual of the projector).
Data Bits
Eight data bits are used for each character of the data transfer.
Parity
There is NO parity bit used to perform error checking.
Stop Bits
One stop bit is used to define the end of a character.

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Baud rate table
BD5000,BD5000LC,BD8000
S1:4 S1:3 S1:2 S1:1 Baud rate (baud)
off off off off 50
off off off on 75
off off on off 100
off off on on 110
off on off off 150
off on off on 200
off on on off 300
off on on on 600
on off off off 1200
on off off on 2400
on off on off 4800
on off on on 9600
on on off off 19200
on on off on 9600
on on on off 9600
on on on on 9600
Baud rate table
BD3000, BD3000LC, BD3100, BD3100LC, BD5100,
BD5100LC,BD8100,BD8100LC
S2:3 S2:2 S2:1 Baud rate (baud)
off off off 9600
off off on 4800
off on off 2400
off on on 1200
on off off 600
on off on 300
on on off 150
on on on 75
Baud rate table
BD5000,BD5000LC,BD8000
S1:4 S1:3 S1:2 S1:1 Baud rate (baud)
off off off off 50
off off off on 75
off off on off 100
off off on on 110
off on off off 150
off on off on 200
off on on off 300
off on on on 600
on off off off 1200
on off off on 2400
on off on off 4800
on off on on 9600
on on off off 19200
on on off on 9600
on on on off 9600
on on on on 9600
Baud rate table
BD3000, BD3000LC, BD3100, BD3100LC, BD5100,
BD5100LC,BD8100,BD8100LC
S2:3 S2:2 S2:1 Baud rate (baud)
off off off 9600
off off on 4800
off on off 2400
off on on 1200
on off off 600
on off on 300
on on off 150
on on on 75
communication settings
Chapter 1: Communications basics Chapter 1: Communications basics communication settings