RS232 Command-set f. K2Blu
Contents
1. by sending the command 0x64 Status_1 or 0x43 Status_2 but normally this should not be necessary We strongly recommend to keep the number of status requests low to avoid unnecessary traffic The information given is different for each device and has to be decoded and displayed individually For further information see the user manual Crestron T A Macro Responses of the K2Blu are as follows Status 1 The STATUS_1 is automatically pushed by the K2Blu when any contained information has changed or the command STATUS_1 was sent to the K2Blu It is answered by a 8 byte long status telegram having the following format 0x01 0x05 OxC4 0x64 Stat Byte 1 Stat_Byte_2 Stat Byte 3 Checksum Cl esscoscsas st Seen caco cisasicas HEADER 4 STATUS BYTES 3 CHK SUM 1 The 4 header bytes 0x01 0x05 0xC4 0x64 are constant The 4 status bytes are defined as follows Stat_Byte_1 bO Protection 1 Protection Overheat b1 Speaker_A 1 speaker A output is ON b2 Speaker B 1 speaker B output is ON b3 Subwoofer A 1 Subwoofer enabled b4 Center A 1 Center enabled b5 Headphones 1 Headphones active b6 b7 ON 1 System is ON Stat Byte 2 bO Listen Source 1 DISC 8 dig Coaxial in b1 1 9 2 TUNER 9 SCL b2 3 REC 10 Bluetooth Au2. modulo 0x100 Format of the acknowledge ACK telegrams The K2Blu will process each received command telegram and it will send an acknowledge telegram approx 25 35 ms after receiving the command If there is an error in the message no acknowledge might be issued The ACK telegram consists of 2 bytes Byte_1 is the RS232 address of the command telegram received before byte 1 of the command telegram 0x01 Byte_2 is the acknowledge byte If this byte is equal to the check sum of the command telegram byte6 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 Byte 1 Byte 2 RS232 address ACK byte check sum of command command correctly received 0x01 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 After the ACK telegram the master device is ready for the next command Functions that require a long keypress Some functions need a long keypress to be invoked using the remote control A similar mechanism is also possible for control through RS232 If the telegram with a command is constantly repeated with a rate of approx 110
3. ms the command will be interpreted as a long keypress Commands that may have functions when received this way are marked with short and long in the following table Control of the T A K2Blu The complete K2Blu including it s built in sources is controllable using the MASTER address Any received command will be processed and forwarded to the currently active source This applies to internal sources as well as to external sources that are connected to the K2Blu using E Link Because the K2Blu forwards commands on the E Link that are not addressed to itself it is possible to send commands to external sources that are connected through E Link to the K2Blu by addressing them directly The internal sources of the K2Blu can not be addressed directly Only the currently selected source can be controlled e g if the current source is RADIO you cannot send any command to DVD or SCL etc IMPORTANT Due to the ability of the K2Blu to communicate with Metz TVs it checks if there is a Metz TV connected everytime the K2Blu is powered up For this purpose the command OxA2 is sent out This command OxA2 must not be acknowled by the serial control device otherwise the K2Blu will change into METZ mode and RS232 control will be disabled The K2Blu will retry two times and afterwards be in RS232 control mode K2Blu Status Messages The K2Blu automatically pushes the status information after it has changed Additionally the status can be requested
4. 5 dig Optical in may be used for TV SRC_Aux3 0x61 Bluetooth Audio SRC_STB 0x62 dig Coaxial in may be used for TV SRC_DBR Ox6A Streaming Client Main Config Menu AMP Menu 0xD8 x Configuration Menu open close AMP Menu Open 0x40 Open Configuration Menu Close AMP Menu 0x60 Close active Menu Hint for menu navigation see Cursor control Sound control SURND 0x37 x toggle Stereo Virtual 3ch Music 3ch Movie Mode Stereo Mode 0x4D select Stereo Mode Virtual Surround 0x6D select Virtual Surround Mode 3ch Music Mode 0x69 select 3ch Music Mode only if center channel enabled 3ch Movie Mode Ox7E select 3ch Movie Mode only if center channel enabled Command Code HEX toggle Remark Basic Device Control this codes have varying functions for the different sources see user manual Tune Up C gt 0x25 Step Search forward Cursor short long Tune Down C 4 0x1A Step Search reverse Cursor short long PREV CV 0x2A Previous Cursor NEXT CA 0x34 Next Cursor PLAY C 0x12 Play PAUSE CH 0x05 x Pause on off STOP CH 0x24 Stop OPEN OxCE X Open Close REPEAT 0x36 x toggle the Repeat Mode short long RETURN 0xC2 RED 0x8A GREEN 0x89 YELLOW 0x87 BLUE Cav 0x86 LIST 0x88 STORE 0x1E INFO 0x8B DISP 0x08 F1 0x32 F2 0x84 F3 0x0B F4 0x8D Numberical keys 0 0x03 k
5. TA Technical Information 22 10 2014 RS232 control of K2Blu The K2Blu with software version 1 22 2 24 or later can be controlled by any control device having a RS232 serial output port PC CRESTRON home automation system etc Settings for the RS232 interface of the control device are as follows Baud rate Data bits Stop bits Parity Flow Control 115 200 8 1 none none T A RS 232 Protocol The K2Blu uses the standard T A RS232 command protocol as described in detail in the documents TA RS232 protocol doc Format of the command telegrams A command telegram to the K2Blu consists of 6 bytes The complete telegram should be sent without pauses between the bytes Example SYSTEM ON command Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 RS232 adapter Telegram length R Link R Link command R Link flag Check sum Address Address byte always 0x01 R Link address R Link OxC4 Master here SystemON 0x57 always 0x02 sum of bytes 1 5 mod command R Link flag device gt see command table 0x100 byte 0x03 appendix 1 0x01 0x03 0xC4 0x57 0x02 0x21 Byte 1 2 5 these bytes have the fixed values as shown in the table above for all R System devices Byte 3 R Link address for the K2Blu MASTER Byte 4 Command according to the table of RCII commands see RS 232 Command Codes doc Byte 6 check sum byte1 byte2 byte3 byte4 byte5
6. dio b3 IPOD b4 unused 5 TV b5 6 Analog in b6 7 dig Optical in b7 Stat_Byte_3 bO LOUDness 1 Loudness is ON b1 Speaker Mode 0 2 Channel 3 3 Channel Movie b2 1 2 Channel virt Surnd b3 2 3 Channel Music b4 Sound Mode 0 Normal 3 Speech b5 1 Dynamic 4 Cinema b6 2 Warm b7 Status 2 The STATUS 2 is automatically pushed by the K2Blu when the volume has changed or the command STATUS 2 was sent to the K2Blu It is answered by a 7 byte long status telegram having the following format 0x01 0x04 0xC4 0x43 Status Byte 1 Status Byte 2 Checksum mee Soe ee nana nn nnn nnn nn nn nn nn nnn HEADER 4 STATUS BYTES 2 CHK SUM 1 The 4 header bytes 0x01 0x04 0xC4 0x43 are constant The 2 status bytes are defined as follows Status Byte 1 b0 Volume of main room b1 0 70 b2 b3 b4 b5 b6 b7 Stat_Byte_2 bO Volume of 2 room b1 0 70 b2 b3 b4 b5 b6 b7 Appendix 1 List of Master commands Command Code HEX toggle Remark Power Control System ON 0x57 Switch the system ON System Standby 0x77 Switch the system to STANDBY System OFF Ox7A Switch the system to STANDBY On Standby 0x01 x Toggle the System between ON and STANDBY Volume Tone Control VOL PLUS 0x00 Performs 1 volume s
7. ey O7 1 Ox3A key 1 2 0x06 key 2 a b c 3 0x16 key 3 d e f 4 0x02 key 4 g h i 5 0x09 key 5 j k l 6 0x3B key 6 m n o 7 0x31 key 7 p q r s 8 0x11 key 8 t u v 9 0x39 key 9 w y z Source Menu SRC Menu Ox1F x toggle Source Menu short long Open SRC Menu OxC5 like SRC Menu short keypress Open SRC Config OxC6 like SRC Menu long keypress Close SRC Menu OxC7 Close SRC Menu Config Cursor Control The Menu List navigation is done using the keys Tune Up C gt 0x25 Tune Down C 4 0x1A PREV CY 0x2A NEXT CA 0x34 OK 0x26 1 Only if Zone 2 is enabled 2 If in STANDBY the master device and the addressed E Link source device are both switched ON Appendix 2 Document History 14 05 2014 ktp initial version Vx 20 22 10 2014 lw checksum corrected
8. tep of the main room volume Hint Repeat these commands for continuous volume VOL_MINUS 0x20 increase decrease command repetition rate 100 110 ms VOL B PLUS 0x4E Performs 1 volume step of the 2 room volume if enabled pas Hint Repeat these commands for continuous volume VOL_B_MINUS 0x6E increase decrease command repetition rate 100 110 ms Balance_L 0x38 one step to the left only main room Balance_R 0x18 one step to the right only main room LOUDness 0x2C x open close Tone Menu LOUDness ON 0x75 LOUDness OFF 0x55 Speaker Control Switches the speaker outputs in sequence A gt B gt A B SPER ods x Hint better i the Speaker A B ON OFF commands Speaker_A ON 0x68 Speaker A output ON Speaker_A OFF 0x48 Speaker A output OFF Speaker_B ON 0x58 Speaker B output ON Speaker_B OFF 0x78 Speaker B output OFF Speaker_A 0x1C x Speaker A on off Speaker B 0x3C x Speaker B on off Off 0x2E Speaker A and B off Source selection 2 Group commands SCL 0x14 SCL short iPod long DISC 0x23 Disc A1 PH 0x3D Analog in gt Optical in gt gt Coaxial in gt Bluetooth Audio A2 TV 0x07 TV A3 TUN 0x17 Tuner REC 0x35 Recorder Source selection discrete commands SRC_DVD 0x42 Disc SRC_CD 0x45 Disc SRC_Tuner 0x46 Tuner SRC_Tape1 0x49 Recorder SRC_Tape2 0x56 iPod SRC_TV 0x59 TV SRC_Aux1 0x5E Analog in SRC_Aux2 0x6
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