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Technical Information 19.08.2005
RS232
The DVD-Surround-Receiver K6 with Crestron compatible software (see appendix 2) is compatible to
be controlled by a connected control-system having a RS232 serial output port (PC, CRESTRON
home automation system etc.) through the RS232/R-Link interface adapter.
For details about connecting and operating the adapter see the user manual of the adapter
“UM_RS232_Adapt.doc”.
Settings for the RS232 interface of the control device are as follows:
Baud rate: 115.200
Data bits: 8
Stop bits: 1
Parity: none
Flow Control: none
control of K6.
T+A RS_232 Protocol
The R-series devices use the standard T+A RS232 command protocol as described in detail in the
documents “TA_RS232_protocol.doc” and “RS_232_Command_Codes.doc”.
Format of the command telegrams
A command telegram to the R-system master device consists of 6 bytes. The complete telegram
should be sent without pauses between the bytes.
Example: SYSTEM_ON command
Byte 1
RS232 adapter
address
(always 0x01) (R-Link address +
0x01 0x03 0xC8 0x57 0x02 0x25
Byte 1, 2, 3, 5
Byte 4
Byte 6
Note:
The R-Link address
There exist a few additional commands (system commands) for some special functions. For these
commands the address
information which is normally not necessary due to the fact that the status is automatically pushed
after changing.
: these bytes have the fixed values as shown in the table above for all R-system
: R-Link command according to the table of RCII commands
(see “RS_232_Command_Codes.doc”)
: check sum == (byte1+byte2+byte3+byte4+byte5) modulo 0xFF
Byte 2
Telegram length
R-Link command +
R-Link flag byte =
0x03)
master devices
0xC8
is used for all standard amplifier commands.
0xC4
has to be used. Currently this is only needed for requesting the status
Byte 3
R-Link address
(0xC8=Amplifier /
Master device
see also note
Æ
below)
Byte 4
R-Link command
(here: SystemON =
0x57)
see command
Æ
table “Appendix 1”
Byte 5
R-Link flag byte
(always 0x02) = sum of
Byte 6
Check sum
bytes 1..5
mod. 0xFF
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Format of the acknowledge (ACK) telegrams
The R-System master device will process each received command telegram and it will send an
acknowledge telegram approx. 25...35 ms after receiving the command.
The ACK telegram consists of 2 bytes:
Byte 1
telegram = 0x01).
Byte 2
(byte_6 of the command) then the command was received correctly. If byte_2 has a value different
from the check sum of the command, an error has occurred (see table below).
Format of the ACK telegram:
After the ACK telegram, the master device is ready for the next command.
is the RS232 address of the command telegram received before (=byte 1 of the command
is the acknowledge byte. If this byte is equal to the check sum of the command telegram
Byte 1 Byte 2
RS232 address ACK byte
0x01
= check sum of command: command correctly received
= check sum –1: command ignored (system busy)
= check sum –2: command not executed
Note:
If no ACK telegram is received within 35 milli-seconds after sending a command, there is either a
hardware problem (cable etc.) or the telegram is erroneous (wrong address, wrong check sum ....)
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Special System Commands
The software versions that include the “extended control” feature (see Appendix 2) will automatically ‘push’ status
information about the K6 status. Additionally this status can be requested by sending the
(Status_1) or 0x43 (Status_2) to the RLink-address 0xC4
. Responses are as follows:
Status 1:
The STATUS_1 command to the master is answered by a 8 byte long status telegram having the
following format:
command 0x64
0x01, 0x05, 0xC4, 0x64,
Status_Byte_1, Status_Byte_2, Status_Byte_3
Checksum
-----------------------------------|---------------------------------------------------------------------------|----------------HEADER (4) STATUS BYTES (3) CHK-SUM (1)
The 4 header bytes (0x01/0x05/0xC4/0x64) are constant.
The 3 status bytes are defined as follows:
Status_Byte_1
b0 unused
b1 Speaker_A 1:= speaker A output is ON
b2 Speaker_B 1:= speaker B output is ON
b3 unused
b4 unused
b5 unused
b6 unused
b7 unused
Status_Byte_2
Listen Source
b0
(0...14)
b1
b2
b3
Recording Source
b4
(0...14)
b5
b6
b7
0:= not defined
1:= CD
2:= TUNER
3:= TAPE 1
4:= TAPE 2
5:= TV/Video
6:= AUX 1
7:= AUX 2
8:= AUX 3
9:= DVD
10:= STB
11:= VCR
12:= AUX/AV 1
13:= AUX/AV 2
14:= DBR (Digital Radio)
15:= not def. / future use
Status_Byte_3
b0 Loudness 1:= Loudness ON
b1 Flat 1:= Tone control OFF
b2 unused
b3 unused
b4 unused
b5 unused
b6 Standby 1:= K6 in Standby
b7 On 1:= K6 is ON
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Status 2:
The STATUS_2 command to the master will be answered by a 10 byte long status telegram having
the following format:
0x01, 0x05, 0xC4, 0x43,
Status_Byte_1, ..., Status_Byte_5,
Checksum
-----------------------------------|---------------------------------------------------------------------------|----------------HEADER (4) STATUS BYTES (5) CHK-SUM (1)
The 4 header bytes (0x01/0x05/0xC4/0x43) are constant.
The 5 status bytes are defined as follows:
Status_Byte_1
b0
unused
b1
b2
b3
b4
b5
b6
b7
Status_Byte_2
b0
Volume of main room
(0...99)
b1
b2
b3
b4
b5
b6
b7
Status_Byte_3
Status_Byte_4
Status_Byte_5
b0
unused
b1
b2
b3
b4
b5
b6
b7
b0
Volume of 2
(0...99)
b1
b2
b3
b4
b5
b6
b7
b0
unused
b1
b2
b3
b4
b5
b6
b7
nd
room
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Appendix 1: List of Master (Amplifier) commands (Address 0xC8)
d
d
Command Command
Code
(HEX)
toggle Remark
System ON 0x57 Switch the master device ON
System Standby 0x77 Switch the system (master and source devices) to STANDBY
System OFF 0x7A Switch the system completely OFF
Volume + Tone Control
VOL_PLUS 0x00
VOL_MINUS 0x20
VOL_B_PLUS 0x4E
VOL_B_MINUS 0x6E
Performs 1 volume step of the main room volume.
Hint
: Repeat these commands for continuous volume
increase/decrease (command repetition rate = 100...110 ms)
Performs 1 volume step of the 2
Hint
: Repeat these commands for continuous volume
nd
room volume (if enabled)
increase/decrease (command repetition rate = 100...110 ms)
Balance_L 0x38 one step to the left
Balance_R 0x18 one step to the right
LOUDness 0x2C x
LOUDness ON 0x75
LOUDness OFF 0x55
FLAT 0x0C x
FLAT ON 0x7B tone control defeat
FLAT OFF 0x47 tone control on
Speaker Control
Switches the speaker outputs insequence ON and OFF:
SPKR 0x13 x
A -> B -> A+B -> OFF
Hint
: better use the “discrete” Speaker_A/Speaker_B ON +
OFF commands
Speaker_A ON 0x68 Speaker A output ON
Speaker_A OFF 0x48 Speaker A output OFF
Hint:
Although the SR1535R has no Speaker B/C/D outputs itself it reacts to the commands and switches
external amps. When 2
nd
A/B (2
room amp needs special software).
n
room functions are enabled the speakers C/D are mapped to 2
n
room speakers
Speaker_B ON 0x58 Speaker B output ON
Speaker_B OFF 0x78 Speaker B output OFF
Speaker_C ON 0x6C Speaker C output ON
Speaker_C OFF 0x4C Speaker C output OFF
Speaker_D ON 0x5C Speaker D output ON
Speaker_D OFF 0x7C Speaker D output OFF
Surround control
Surround EX/ES 0x6F Surround EX/ES mode
Surround 5.1 0x6D Surround 5.1 mode
Stereo 0x4D Stereo mode
Mono 0x5D Mono mode
Mono I 0x3D use left channel for Mono
Mono II 0x53 use right channel for Mono
Disco 0x63 SoundField: Disco
Hall 0x76 SoundField: Hall
Opera 0x7E SoundField: Opera
Arena 0x71 SoundField: Arena
Club 0x69 SoundField: Club
Church 0x79 SoundField: Church
MCH-Input 0x67 Use Multichannel-Input if assigned to active source
SURND 0x37 x toggle between Surround- and Preamp-Mode
PRE 0x0E switch to HQ-Stereo-Mode
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Source selection (Group commands)
CD 0x23 x CD ÅÆ DVD
Tuner 0x17 Tuner
Tape 0x35 Tape
DAT/Tape-2 0x15 x VCR-1 ÅÆ VCR-2
Video/TV 0x07 x TV ÅÆ STB
AUX 0x3D x AUX/P Æ AUX-AV-1 Æ AUX-AV-2 ...
MC/Aux-2 0x27 AUX/P
MM/Aux-3 0x1D x AUX-AV-1 ÅÆ AUX-AV-2
Source selection (discrete commands)
SRC_CD 0x45 CD
SRC_Tuner 0x46 Tuner
SRC_Tape-1 0x49 Tape
SRC_TV 0x59 TV
SRC_Aux-2 0x65 AUX/P
SRC_Aux-3 0x61 CAM
SRC_DVD 0x42 DVD
SRC_STB 0x62 STB
SRC_VCR-1 0x52 VCR-1
SRC_Aux-AV-1 0x72 Aux-AV-1
SRC_Aux-AV-2 0x4A Aux-AV-2
SRC_VCR-2 0x66 VCR-2
Main / Config - Menu
AMP Menu (short) 0x40 Open Main Menu
AMP Menu (long) 0x41 Open Configuration Menu
Close AMP Menu 0x60 Close active Menu (Main or Configuration)
Hint:
The Menu navigation is done by the keys NEXT (0x34), PREV (0x2A), FF (0x25), RW (0x1A) and
OK (0x26) which are normally forwarded to the active source device.
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Appendix 2: List of compatible software Versions for K6
K6-PAL / SCART:
Basic functions (can be controlled by RS232 commands)
Display-Controller V1.30 and later
DVD-Controller V3.13 and later
Extended functions (sends status compatible with T+A Crestron Macro V1.40)
Display-Controller V1.37 and later
DVD-Controller V3.13 and later
K6-PAL / Component Video:
Basic functions (can be controlled by RS232 commands)
Display-Controller V3.10 and later
DVD-Controller V5.11 and later
Extended functions (sends status compatible with T+A Crestron Macro V1.40)
Display-Controller V3.16 and later
DVD-Controller V5.11 and later
K6-NTSC / Component Video:
Basic functions (can be controlled by RS232 commands)
Display-Controller V2.10 and later
DVD-Controller V4.11 and later
Extended functions (sends status compatible with T+A Crestron Macro V1.40)
Display-Controller V2.13 and later
DVD-Controller V4.11 and later
The Display-Controller with basic functions do support a requestable status but we recommend not using this
feature. The information of this old requestable status is different from the new status introduced with the T+A
Crestron Macro V1.40.
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