KNX - Radiocrafts AS
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1. OFF IDLE treser IDLE RESET puia IDLE 151 SLEEP IDLE PROMPT te conric 2 IDLE ILE CONEIG CONFIG CONFIG C set low temory conric tconric Le CONFIG MEMORY CONFIG CONFIG IDLE aU OxFF UC Figure 6 UART timing diagram Timing values are shown in the timing table for each KNX feature set 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 11 of 22 e COKIN Power Management The module can be set in SLEEP mode in order to reduce the power consumption The low power SLEEP mode is manually entered by using the SLEEP command Z after the module is set in configuration mode It is also possible to configure the module to enter SLEEP automatically after a message has been transmitted SLEEP MODE 1 With this setup the module has to enter TX mode transmit a message after power on before entering SLEEP mode first time In SLEEP mode the module will not receive or detect incoming data neither from the host UART port nor from the air The module is awakened from the SLEEP mode by sending the wake up byte FFh on the UART RXD line use a UART Baud rate 4 8 kBd due to a maximum pulse length requirement After the module has woken up see Timing Information it is ready to receive data on the UART or from the air The SLEEP command can be used for both Master and Slave All configuration settings and RAM values are retained during2. 1 UART interface overview and KNX RF packet format Frame format for transmitting data The data frame for the UART RXD pin input for transmitting a KNX packet is built like this i 2 byte source 2 byte dest his s ipi eiiis _ T T nP Application header Figure 2 UART interface packet transmission RXD pin 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 7 of 22 L is the length not including the length byte itself followed by the data headers with the byte first Cl is the Control Information byte or KNX Ctrl The data headers are L NPCI Link Network Protocol Control Information TPCI Transport layer Protocol Control Information and APCI Application layer Protocol Control Information The C field is fixed to 44h i e SND NR message The RF info contains battery status which can also be added by the module based on a configurable voltage threshold BATTERY THRESHOLD which can be set in 30mV steps The maximum value is 3 75V corresponding to 7Fh The unique Serial Number SN and Domain Address DoA are entered and stored in the modules non volatile memory Depending on the Application header AET bit in the L NPCI field either the SN or DoA will be used The Link layer header L C field RF info and address is added to the KNX packet automatically by the module before transmitting over RF Compared to the KNX frame used for wired communication like twisted pa
3. Depends on M Bus mode T S R and L 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 14 of 22 KNX KNX1 Configuration Commands A list of commands is shown in the table below Commands must be sent as ASCII characters or their corresponding binary value All arguments must be sent as binary values to the module not as ASCII representation for hex or decimal Bind B 0x42 Register number 1 64 Used to bind Transmitter followed by 8 byte address to Receiver Data stored in NB First two address bytes non volatile memory must be FFh 00h KNX mode G 0x47 0x00 0x04 0 4 Data is stored in volatile 0 S2 memory only 3 81 Install l 0x49 0 Normal operation 2 Accept all messages List binding L 0x4C Register number 1 64 Module responds with the address stored in the register 8 bytes Memory M Ox4D Address Data see list of Used to enter memory configuration parameters below configuration menu OxFF exits memory Parameters changed are configuration stored in non volatile memory Output power 0x50 0 01 0 05 1 5 Data is stored in volatile memory only Quality Q 0x51 Returns one byte indicating Based on bit errors Indicator the signal quality of the last preamble and synch word received packet Signal S 0x53 Returns one byte indicating If a valid packet has been Strength the signal strength of a r
4. SLEEP If the module is shut completely off supply power turned off all configuration settings in non volatile memory is restored but values in RAM are overwritten with default settings RSSI Reading The module provide a digital Received Signal Strength Indicator RSSI through the S command or attached to the received messages The RSSI value appended to a received message is the signal strength of that received packet The RSSI value is a 8 bit character one byte indicating the current input signal strength or the signal strength of the received message The signal strength can be used as an indication of fading margin or as a carrier sense signal to avoid collisions The RSSI value increases with increased input signal strength in 0 5 dB steps Input signal strength is given by typ RSSI 2 dBm 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 12 of 22 e COKIN KNX1 Description The KNX1 support all the basic features of Receiver and Transmitters according to KNX RF 1 1 and KNX Ready specifications Up to 64 transmitters unique serial numbers can be registered in the Receiver KNX1 Automatic Sleep The S1 mode for transmitters only has special support for automatic sleep after data transmission If automatic SLEEP after TX is enabled SLEEP MODE 1 the module will automatically go to sleep after data transmission KNX1 Installation and Binding The module can be set in a receive all Installation M
5. TIMING INFORMATION a ansa aa aa a nanne nann 10 POWER MANAQGEMENT a s assa sa asas assa 12 PRISSIIREADING uu uru 2 E 12 KNX1 DESCRIPTION au isyaasasssss sana cdbessassnassaveeaueneusagasvausasadecdsexeeecesdanunass 13 KNX1 AUTOMATIC SLEEP a a a a 13 KNX1 INSTALLATION AND BINDING a a a a 13 KNXTTEIMINGOTABEB cu Su A E n nm s ua asa Su Ghum SS 14 TABLE TO UPDATEL 14 KNX1 CONFIGURATION COMMANDS a a a a 15 KNX1 CONFIGURATION MEMORY a a 17 APPENDIX CONFIGURATION MEMORY FACTORY DEFAULLI 20 APPENDIX ASCII TABLE ra rkicusa 21 DOCUMENT REVISION HISTORY Q 22 DISCLAIMER 22 TRADEMARK O EESADE 22 LIFE SUPPORT POLICY u u uuu uu raaa wa EE rca 22 CONTACT INFORMATION U U uu uu 22 2010 Radiocrafts AS KNX
6. User Manual rev 0 30 Page 2 of 22 Embedded Wireless Solutions KN X Quick Introduction How transmit data Send your data to the RXD pin on the module Use the UART format with settings 19200 8 1 N no flow control Up to 255 bytes are buffered in the module The first byte of the message should contain the message length The module will transmit the data when the whole packet is received How do receive data Any received data packet with correct KNX RF format and check sums will be sent on the TXD pin Optionally the meter address first KNX block is added to the data string The RSSI value received signal strength can optionally be added to the message What about the antenna In most cases a simple quarter wavelength wire or a PCB track will do Connect a piece of wire to the RF pin with length corresponding to the quarter of a wavelength For space limited products contact Radiocrafts and we will recommend the best antenna solution for your application How do I change the operating mode or any other parameter To change configurable parameters send one byte to the module with the value 0x00 This will take the module into configuration mode Special commands are then used to access the configuration registers and test modes Exit from configuration mode by sending the X command Parameters can be changed permanently and stored in non volatile memory in the module 2010 Radiocrafts AS KNX User Manual re
7. and when sending a reading or command this address is added to the wireless message Up to 64 transmitter addresses the 6 bytes of the extended address can be registered in the receiver which will filter messages from only these transmitters Sensors being transmitters only can be battery operated as they can by set in sleep mode when not transmitting For two way battery operated systems the new KNX BiBat Bi directional Battery operation specification applies A re transmitter can be used to increase the range of the RF system Messages from transmitters that have been registered in the re transmitter will be re transmitted 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 5 of 22 e SE KNX RF Embedded Protocol Basic functionality The module offers a buffered packet radio acting as a KNX modem The module contains a fully embedded protocol supporting Unidirectinal devices transmit only S1 Bi direction devices S2 The mode is configurable by the KNX MODE parameter The required KNX mode is configured by setting the module in configuration mode and entering appropriate UART commands S2 mode Set KNX MODE 0 Set PREAMBLE LENGTH 0 for short preamble or 1 for long preamble S1 mode Set MODE 3 Set PREAMBLE LENGTH 0 for short preamble or 1 for long preamble KNX Ready use the long preamble while KNX RF 1 1 use short preamble The RF channel 868 3 MHz and data rate 32 768 kchip
8. before the gt prompt is received The time required to execute a command can vary depending on the command see the Timing Information section There is no gt prompt after the X exit command The parameters that are set by dedicated configuration commands C P etc take immediate effect after returning to normal operation IDLE but will not be stored in non volatile memory and will be lost in case the supply power is turned off or if the module is reset These parameters are for example the radio channel and output power Permanent changes of parameters can be done by writing to the configuration memory using the memory command M These are for example default radio channel default output power and M Bus mode see the Configuration Memory section for details The flow diagram bellow illustrates how to use the UART interface to enter configuration mode change configuration parameters and return to IDLE mode 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 9 of 22 e COKIN Send 0x00 to RXD Wait for gt from TXD Send Command byte to RXD Wait for from TXD Send Command parameters to RXD Wait for from TXD New command Figure 4 Configuration mode flow diagram Send X to NO UART Timing Information A UART byte consist of one start bit 8 data bits and one stop bit In configuration mode a command to prompt reply will looks like this Command Pro
9. data received data Radio packet configuration PREAMBLE _ Short of long Ox0A 0x00 0 Short 0x00 0 Preamble header LENGTH preamble in S 0x01 1 Long length Use long for KNX mode only Ready BATTERY Threshold 0x0B 0x00 0x3F 85 Step size is 30 mV step THRESHOLD battery voltage 0 Disable 85 corresponds to 2 5 V for alarm The function is disabled if set to 0 TIMEOUT Time before 0x10 lt 1 254 gt 0x7C IF SLEEP_MODE 3 the modem clear 0x01 1 32 ms same timeout is used to buffer without 0x02 2 48 ms auto sleep slaves transmitting if 0x03 3 64 ms Buffer size lt 0 7 124 2 s Modem transmit without Length byte OxF9 249 4 s timeout when first byte Buffer size length byte Medium access addressing and network management NETWORK ROLE 0x12 0x00 0 0x00 0 Transmitter Rece iver 0x01 1 Reserved 0x10 2 Reserved Reserved 0x19 OxFF 255 Reserved Ox1A 0x00 0 SERIAL NUMBER Serial number 0x1B 0x00 0xFF 0x12 18 first byte 0 255 SERIAL NUMBER Serial number 0x1C 0x00 0xFF 0x34 52 second byte 0 255 SERIAL_NUMBER Serial number 0x1D 0x00 0xFF 0x56 86 third byte 0 255 SERIAL NUMBER Serial number Ox1E 0x00 0xFF 0x78 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 17 of 22 KNX fourth byte 0 255 120 SERIAL NUMBER Serial number Ox1F 0x00 0xFF 0x90 fifth byte 0 255 144 SER
10. for each used by the module to module minimise the total frequency tolerance For firmware upgrade read back the value and write it back after the upgrade LED CONTROL 0 Disabled 0x00 0 Use to enable 1 RX TX LEDO LED1 for RX TX indicator packet indication or 2 UART RF UART RF IDLE mode IDLE indicator indicator INSTALL MODE Ox3D 0 Normal mode 2 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 18 of 22 KNX accept installed transmitters only 1 Reserved 2 Filter off accept all messages PART NUMBER 0x60 ROxxxx 0x6B KNX1 HW_REV_NO 0x6D x y and z Any number 0x72 Od 9d FW REV NO 0 74 x y and z Any number 0x77 Od 9d MODULE_SERIAL_ 0xC0 All 0x00 8 bytes reserved for serial NUMBER 0xC7 number for traceability Is programmed by Radiocrafts during test Exit from memory OxFF No argument To exit from command configuration should be sent mode the X command must be sent after gt is received To make permanent changes to default values and other parameters the Memory Configuration command M is used This command should be followed by pairs of byte being the memory address and the new value to be stored at that address In order to exit the Memory Configuration mode the address 0xFF must be sent but without any data argument Then wait for the gt prompt while the internal memory is re pr
11. s are set internally in the module according to S mode The module has an internal buffer and transmits application data after the whole packet is received based on the packet length first byte of the application frame The module use Listen Before Talk LBT to avoid collisions The module will listen for a preamble for 15 30 ms at random and only transmit if the channel is free If a preamble is detected the module will wait until that message has been completed and will then again listen for a new preamble for another 15 30 ms at random until the channel is free Optionally configurable the module will send a Transmission complete message Length 00h followed by SFh on the UART when the transmission has been done For uni directional devices S1 transmit only data should not be sent to the module more frequent than every 150 ms The data packets should also have a random spacing of 0 10 ms or more The module also has a timeout feature that will empty the input buffer in case of false data packets The default timeout is 2 seconds Max total payload is 246 bytes or 255 including the header in the first block Sleep mode can be entered via an UART command and wake up is triggered on UART traffic one FFh byte Sleep mode can also be entered automatically after a transmission configurable by SLEEP MODE when using the S1 transmit only mode The module acts as a buffered packet radio hence all data to be sent is stor
12. to result in significant personal injury to the user or as a critical component in any life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness Radiocrafts AS customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Radiocrafts AS for any damages resulting from any improper use or sale 2010 Radiocrafts AS All rights reserved Contact Information Web site www radiocrafts com Address Radiocrafts AS Sandakerveien 64 NO 0484 OSLO NORWAY Tel 47 4000 5195 Fax 47 22 71 29 15 E mails radiocrafts radiocrafts com sales radiocrafts com support radiocrafts com Radiocrafts is a member of the KNX association and will work closely with the association to enable manufacturers of wired KNX products to develop wireless products compliant with the KNX RF standard You can also find more information on the KNX association web site www knx org KNX 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 22 of 22
13. FF OxFF OxFF 0x48 Ox4F OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF 0 50 0 57 0x00 0 00 0 00 0 00 0x00 0x00 0x00 0x00 0x58 0x5F 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x60 0x67 0x68 0x6F 0x70 0x77 0x78 Ox7F OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF 0x80 0x87 OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF 0x88 0x8F OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF 0x90 0x97 OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF 0x98 0x9F OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxAO OxA7 OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxA8 OxAF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxBO 0xB7 OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxB8 OxBF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF 0xC0 0xC7 OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF 0xC8 OxCF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF 0 00 0 07 OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxD8 OxDF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxEO OxE7 OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxE8 OxEF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFO OxF7 OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxF8 OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF OxFF Grey Reserved do not change Blue Reserved for Module part number and version information do not change Typical values shown the actual content of memory in this depends on part number and version number 2010 Radiocraft
14. IAL NUMBER Serial number 0x20 0x00 0xFF 0x00 0 sixth byte 0 255 DOMAIN ADDRESS Domain 0x21 0x00 0xFF 0x01 1 Address first 0 255 byte DOMAIN_ADDRESS Domain 0x22 0x00 0xFF 0x02 2 Address 0 255 second byte DOMAIN ADDRESS Domain 0x23 0x00 0xFF 0x03 3 Address third 0 255 byte DOMAIN ADDRESS Domain 0 24 0 00 0 04 4 Address fourth 0 255 byte DOMAIN ADDRESS Domain 0x25 0x00 0xFF 0x05 5 Address fifth 0 255 byte DOMAIN ADDRESS Domain 0x26 0x00 0xFF 0x06 6 Address sixth 0 255 byte Data and configuration interface UART Serial Port UART BAUD RATE Baud rate 0x30 0x00 Not used 0x05 5 BE CAREFUL IF 0x01 2400 CHANGING AS HOST 0x02 4800 MAY LOOSE CONTACT 0x03 9600 WITH MODULE 0x04 14400 Does not take effect until 0x05 19200 module is re booted 0x06 28800 reset 0x07 38400 0x08 57600 0x09 76800 Ox0A 115200 230400 UART_FLOW_CTRL UART flow 0x35 0 None 0x00 0 control 1 CTS only 3 CTS RTS 4 RXTX RS485 DATA_INTERFACE Data interface 0x36 0x00 KNX 0x00 0 Sets receiver data format packet with ID First byte is always and address packet length except 0x01 Application when using start byte data only 0x02 Reserved 0x10 can be combined 0x03 Reserved with the other settings by 0x04 Add using 0x11 0x1C start stop byte 0x08 Add CRC start stop byte and CRC 0x10 TX complete 00 3Fh FREQ CAL 0x39 Different Found in factory and
15. KNX User Manual AN ze R amp Shutters 7 Security Systems HVAC Systems Ak V EF Energy Management eG Lighting Remote S e Fire amp Smoke detection White Goods Monitoring Systems 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 1 of 22 Embedded Wireless Solutions KN X Table of contents TABLE OF CONTENTS U U Uu u u u 2 QUICK INTRODUCTION u u u uu uu uu uu E aS ud SES nao ak CY HE xk eg Raga sipiin 3 KNX ads will izkimpce 4 OPTIONAL CUSTOM SPECIFIC VERSION Q J 4 NETWORK TOPOLOGQY U U u 5 KNX RF EMBEDDED PROTOCOQL u u u l 6 BASIC FUNCTIONALITY toes Ua U ee nee teret tease arse qa sec exp 6 UART INTERFACE FOR KNX RF PACKET 7 FRAME FORMAT FOR TRANSMITTING 7 FRAME FORMAT FOR RECEIVING DATA a a aaa aasssssssssssssaa 8 UART INTERFACE FOR MODULE CONFIGURATION a aa aaa nna 9 UART
16. cluding any timeout until CTS is activated 1 960 us Time from last character is received by the UART including any timeout until the module sends the first byte on the air Trx IDLE 960 us Time from last character is sent on the air until module is in IDLE mode ready for RXD and RX toFF IDLE 3 2 ms tRESET IDLE 3 0 ms tsLEEP IDLE 1 3 ms tcoNFIG PROMPT 60 us Time from 00h CONFIG pin is set low until prompt gt Ta cowriG 1 1 ms Delay after channel byte is sent until prompt For other volatile memory commands there is no delay but immediate prompt Ta cowriG 1 1 ms Delay after new M Bus mode byte is sent until prompt gt For other volatile memory commands there is no delay but immediate prompt Twat 1 55 ms B K and M Delay from stop bit of the command byte to start bit of command the prompt reply See figure 5 for details 24 us all other commands TMEMORY CONFIG 31 ms In this period the internal flash non volatile memory is programmed Do not reset turn the module off or allow any power supply dips in this period as it may cause permanent error in the Flash configuration memory After the last command parameter byte the host should wait for the gt prompt before any further action is done to ensure correct re configuration TcoNriG IDLE 1 1 ms End of X to IDLE ttx 3 6 ms TX time for T1 mode when Length 1 on the UART Preamble sync CRC and KNX address field added internally
17. eceived when in RSSI detected signal or a valid configuration mode it will packet return the RSSI of the last received packet Exit command X 0x58 none Exit to normal operation mode All changes of parameters take effect Sleep mode Z Exit sleep mode by sending OxFF on UART RXD pin Test mode 0 0 0x30 none List all configuration memory parameters Test mode 1 1 0x81 none TX carrier Test mode 2 2 0x32 TX modulated signal PN9 sequence Test mode 3 3 0x33 none TX off RX mode Testmode4 4 0x34 IDLE TX off RX off Note ASCII characters are written as X hexadecimal numbers are written like 0x00 and decimal numbers are written like 10 throughout the text A table of ASCII characters and their respective hex and decimal values are found in the Appendix 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 15 of 22 e COKIN Any invalid command will be ignored and the gt prompt will be re sent If Test mode 1 or 2 is used it is important to enter Test mode 3 before exiting the configuration mode X in order to ensure proper operation in normal mode Example To select RF channel 3 send the follow sequence after asserting the CONFIG line and the gt prompt is received Command Hex Response Comment Note Enter 0x00 gt Or assert CONFIG pin De assert CONFIG after gt prompt 0x43
18. ed in the module before they are transmitted by the RF circuitry Likewise when data is received they are stored in the module before they are sent to the host This allows the communication controller to add address information and CRC during transmission and to do error check of the received data The Module has an UART interface that is used for both KNX RF packet data and module configuration 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 6 of 22 e SE KNX UART Interface for KNX RF packet handling The KNX RF frame format follows the FT3 block format using two CRC bytes for every 16 data bytes This ensures the high integrity of the data link Preamble block1 10 2 16 bytes CRC CRC Postamble sync bytes The KNX modules include a KNX packet handler that with automatic generation of Preamble Header synchronization Block 1 C filed RF info and address CRC and Postamble This will simplify the UART format for the host controller that only need to provide application layer data to the module UART The host use the UART Interface to send and receive KNX RF data The UART packet format can be changed in the configuration mode When the Module receives a KNX packet over RF it will send the packet over the UART interface on the TXD Line When the host MCU wants to transmit a KNX packet over the RF it must send the packet through the UART Interface on the RXD line Wireless link Figure
19. gt 3 0x03 gt Wait for gt prompt A new command could be issued here x 0x58 none Module returns to IDLE state Note that the CONFIG line must be de asserted after the first gt prompt was received but before the X command 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 16 of 22 KNX1 Configuration Memory The table below shows the complete list of configurable parameters stored in non volatile memory These values can be changed using the M command All addresses and arguments must be sent as binary values to the module not as ASCII representation for hex or decimal KNX Radio configuration RF POWER Default RF 0x01 1 5 0x05 5 See data sheet for output output power power levels KNX_MODE KNX mode 0x03 0 S2 0x00 0 Use G command to 3 81 change value in volatile memory only SLEEP MODE Sleep mode 0x04 0 Disable Sleep 0x00 0 When enabled the 1 Enable Sleep module enter Sleep mode after TX after transmission or 2 Reserved reception Delay set by 3 Enable Sleep RX TIMEOUT after TX and RX 5 As 1 with If enabled with sleep sleep timeout timeout the module goes 5 As 3 with directly to Sleep after a sleep timeout Reset and to Sleep after TIMEOUT when wakeup from Sleep or exit Config mode RSSI MODE Append RSSI 0x05 0 Disabled 0x00 0 When enabled the RSSI to received 1 Enabled value is appended to the
20. host applications using a UART buffer the timing information used for parsing could be lost In this case a start and stop byte can be used Setting DATA INTERFACE 4 will add a START byte 68h and a STOP byte 16h to the message This is only used for the module to host communication direction TXD Setting DATA INTERFACE 8 will add a two byte CRC checksum and DATA INTERFACE will add START STOP bytes and CRC The CRC is sent MSByte first The RSSI value is added when RSSI MODE 1 UART Interface for Module Configuration The configuration of the module can be changed in circuit from the host during operation at the time of installation of the equipment at the manufacturing test or even as a stand alone module The configuration is changed by sending commands on the UART interface after the module is set in configuration mode The configuration mode is entered by sending to the module or by asserting the CONFIG pin set low In configuration mode the module will respond by sending a gt prompt on the TXD pin This indicates that the module is ready to receive commands The CONFIG pin if used can then be de asserted Note that the CONFIG pin must be de asserted before the Exit command X is sent to the module in order to return to normal operation After a command is executed the module responds with the gt prompt character again indicating it is ready for a new command Do not send a new command
21. ir an extended address is used This is to avoid conflicts between two adjacent networks The Group addresses source and destination address is coded in the beginning of the application header By setting DATA INTERFACE 0x10 or in combination as 0x11 0x1C the two byte string 00 3Fh i e L 0 will be sent on the UART when transmission is completed after Frame format for receiving data The data frame for the UART TDX pin Output for received KNX packets is built like this ID TX serial nr or Domain address Application header 2 byte source 2 byte dest CRC STOP Enable by DATA Enahleby 551 NODE lt gt L Lenghtof HEADEB CI APPL_DATA RSSEH CRC Enable by DATA INTERFACE Figure 3 UART interface packet reception TXD pin Data in blue and yellow are optional output parts of the UART message and can be enabled in configuration mode by the DATA INTERFACE and RSSI MODE configuration parameters L is the length byte and is always present It does not include itself or the START STOP bytes but will include RSSI and CRC if enabled Do also note that the receiving module will add RSSI information within the RF info byte based on received signal level When setting DATA INTERFACE 1 the received HEADER will not be sent on the UART 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 8 of 22 e COKIN For
22. mpt A RXD TXD T BIT T_BYTE f RSS T UART BYTE _ 2 WAIT Figure 5 UART Command prompt The command to prompt wait time T Command2Prompt WAIT is different from command to command and values are shown in the timing table for each KNX feature set The IDLE state is the normal state where the module both searches for preamble on the RF and wait for a character to be received on the UART RXD is the state when receiving characters from the host filling up the internal buffer TX state is when the data is transmitted on the air RX state is when data is received from the air after preamble detection TXD is the state where the received data is sent to the host on the UART CONFIG is the configuration mode the state entered by sending OOh or asserting the CONFIG pin and is entered during parameter configuration while MEMORY CONFIG is the sub state entered by the M command where the non volatile configuration memory is being programmed Note the limitation on maximum number of write cycles using the M command see Electrical Specifications 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 10 of 22 e COKIN Preamble detected First character on Last character on UART TXD UART TXD tx i i rxapce IDLE 1 First character on Last character on UART RXD UART RXD
23. ode using the I command When the module is in the receive all mode it will accept all messages and can use these to extract addresses for binding Transmitters can be bound to a Receiver by registering their addresses in the Address Register This is done by using the B Bind command followed by a register number 1 64 and an 8 bytes slave address The Serial Number address must start with FFh 00h followed by the 6 address bytes Note the Domain Address shall NOT be registerd in the Address Register as it is configured using the M command in the Configuration Memory A maximum of 64 Transmitters can be bound to one Receiver Note the host must know which registers are used and which are free at any time 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 13 of 22 KNX1 Timing table KNX The table below shows the timing information for the module when changing between different operating states Timing symbol is according to figure 5 and 6 Table to be updated Symbol 180 us Time from last byte is received from the air until first character is sent on the UART trxp Min 590 us trxp bytes received x 590 us char 10 bits at 19 2 kBd 70 us delay per character trxp IDLE 900 us Time from last character is sent on the UART until module is in IDLE mode ready for RXD and RX Trxp cTs 20 us Time from last character is received by the UART in
24. ogrammed See Timing Information for typical delay To completely exit from command mode the normal exit command X must be sent Example To change the DOMAIN ADDRESS at address 0x21 and 0x26 and set it to 100 200 0x64 0xC8 send the following sequence Command Hex Enter 0x00 M 0x4D 0x21 0x21 100 0x64 0x22 0x22 200 0xC8 new address could be sent here new value could be sent here OxFF OxFF X 0x58 Response E V TE gt Comment Note Or assert CONFIG pin De assert CONFIG after gt prompt Module ready to receive address Wait for gt prompt Module returns to IDLE state Test mode 0 0 command can be used to list all parameters stored in non volatile memory This command can be used to verify and check the module configuration 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 19 of 22 e KNX Appendix Configuration Memory Factory Default Address KNX1 factory default Values 0x00 0x07 OxOB 0x05 0x02 0x00 0x00 0x00 0x64 0x00 0x08 OxOF 0x05 0x3C 0x00 0x55 0x00 0x00 0x80 0x80 0x10 0x17 Ox7C 0x00 0x00 0x01 0x00 0x00 0x17 0x00 0x18 0x1F 0x00 OxFF 0x00 0x12 0x34 0x56 0x78 0x90 0 20 0 27 0x00 0 01 0 02 0x03 0x04 0x05 0x06 0x04 0x28 Ox2F OxFF 0x08 0x00 0x00 0x00 0x00 0x00 0x00 0 30 0 37 0x05 0 08 0 00 0 01 0 05 0 00 0 00 0 01 0x38 0x3F Ox2B 0x00 0x00 0x44 0x06 0x02 0x00 0x00 0 40 0 47 OxFF OxFF OxFF OxFF Ox
25. p addresses Listen before Yes according to talk LBT KNX The command set used to configure the KNX modules are different for each feature set and an overview is found in the appendixes Note that this User Manual also is applicable for the RCxxxxTX KNX planned future product This is a TX only hardware and the RX features described in this User Manual is not supported Optional custom specific version As an option to the standard feature sets a full KNX application layer can be integrated in the module based on customer specification In this case all the application layer protocol and timing will be handled internally by the module See Data Sheet for details 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 4 of 22 Embedded Wireless Solutions KNX Network Topology A KNX based building automation system normally consists of a number of sensors which reports their readings and status to a concentrator for further processing or directly trigging actuators The network topology is one to many or peer to peer KNX RX 1 1 or KNX RF Ready does not use the Master Slave concept of for example Wireless M Bus Several receivers can receive the same message based on registering the group or individual address of the transmitter The Radiocrafts KNX RF family of modules RC11xx KNXx can be used as transmitters or receivers The module is configured with a unique address Serial Number and a Domain Address
26. s AS KNX User Manual rev 0 30 Page 20 of 22 Embedded Wireless Solutions KNX Appendix ASCII Table NUL SOH A E ENQ ACK F H HT oo 1 o oN o celo oo B cpr 2010 Radiocrafts AS KNX User Manual rev 0 30 Page 21 of 22 Embedded Wireless Solutions KNX Document Revision History 1 0 First release Disclaimer Radiocrafts AS believes the information contained herein is correct and accurate at the time of this printing However Radiocrafts AS reserves the right to make changes to this product without notice Radiocrafts AS does not assume any responsibility for the use of the described product neither does it convey any license under its patent rights or the rights of others The latest updates are available at the Radiocrafts website or by contacting Radiocrafts directly As far as possible major changes of product specifications and functionality will be stated in product specific Errata Notes published at the Radiocrafts website Customers are encouraged to check regularly for the most recent updates on products and support tools Trademarks All other trademarks registered trademarks and product names are the sole property of their respective owners Life Support Policy This Radiocrafts product is not designed for use in life support appliances devices or other systems where malfunction can reasonably be expected
27. v 0 30 Page 3 of 22 e E COKIN KNX feature sets This User Manual describes the embedded protocol of the KNX Modules from Radiocrafts The KNX firmware is available as different feature sets targeting specific applications The hardware platform is the same for all solutions and the different feature sets available are listed in the table below Detailed information on how to use the different feature sets is found in this User Manual There are four KNX RF specifications KNX RF Ready is a single channel system at 868 3 MHz and is an update of KNX RF revision 1 1 specified in EN 50090 5 3 2006 KNX RF Multi is a multichannel evolution of KNX RF Ready system with to additional RF channels for fast reaction time products and two RF channels for slow reaction time products e KNX BiBatis a system for synchronised products based on KNX 1 1 specification KNX BiBat 2 is an evolution of with two RF channels based on KNX 1 1 specification For additional information about the KNX RF packet structure please see EN 50090 5 3 2006 and KNX System Specifications part 3 2 5 Communication Media Radio Frequency General Basic KNX RF 1 1 and KNX Ready functions Network role Sender and Receiver KNX packet Yes handler Modes 51 82 Addressing Serial and domain addressing Number of Up to 64 installed serial number Filter function Receiver only receives messages from installed registered grou
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