K-BUS R RS485/ KNX Converter User manual
Contents
1. 55 C Transport 25 C 70 C Ambient condition Humidity lt 93 except dewing Design Interface protection Baud rate Transmission range Transmitting media Working mode Dimensions Modular installation device on 35 mm Din rail Built in 2000V ESD protection 4800 115200 bps lt 1 km Twisted pair or shielded wire Asynchronous half duplex differential transmission 90x36x64mm HxWxD 4 www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465 GVS K BUS9 KNX EIB RS485 KNX Converter Weight 0 1kg Application program Max number of Max number of Max number of communication objects group addresses associations addresses RS485 KNX converter 0 0 0 2 2 Dimension diagram 90 0 2 3 Circuit diagram D Programming button Programming LED red LED for assigning the physical address green LED for indicating the application www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465 GVS K BUS KNX EIB RS485 KNX Converter layer works normally KNX EIB bus connection terminal RS485 bus connection terminal 3 Project design and programming 3 1 Overview of the functions Open communication protocols The communication protocols for RS485 interface is open anyone can follow the text of the protocols to achieve communication between devices on different bus So you can easily connect the2. fe p i i Guangzhou Video star Electronics Industrial Co Ltd amp J KNX 1 lt ui K BUS RS485 KNX Converter User manual Ver 1 BTPT 01 485 1 KNX EIB Intelligent Installation Systems CLECE l BUS GND vec GND EIJ KNR CE A eee ee ej www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465 GVS K BUS9 KNX EIB RS485 KNX Converter Contents 1 Summary e eo eo en eroe ero er er en Sen ren rn nn Sen e S 3 2 Technical Properties amp Dimension and Circuit Diagram 4 2 1 Technical data 4 2 2 Dimension diagram 5 2 3 Circuit diagram 5 3 Project design and programming 6 3 1 Overview of the functions 6 3 2 Parameter setting description in the ETS 7 4 Communication
3. Always is OXSSZSTXI BYTE Head2 Always is OxAA STX2 WORD MachineID terminal s ID WORD Reserved Reserved WORD Command Command ID DWORD Length Input Parameter 1 WORD InParam Input Parameter 2 WORD ChkSum Checksum CMDPKT Size of command packet is 16 Bytes Command acknowledge packet typedef struct BYTE Head 1 Always is OxSA STX1 BYTE Head2 Always is OXASZSTX2 WORD MachineID terminal s ID WORD Response 0x00 NAK 0x01 ACK WORD ChkSum Checksum ACKPKT Size of command acknowledge packet is 8 Bytes Command execution result packet 9 ESSSSSSSSSSSSSS_______ _____ _ _____ _________a__a _a_ a _ _________S n www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465 GVS K BUS KNX EIB RS485 KNX Converter typedef struct BYTE Head1 Always is OxAA STX1 BYTE Head2 Always is 0x55 STX2 WORD MachineID terminal s ID WORD Reserved Reserved WORD Ret 1 OK 0 Error DWORD OutParam Output Parameter WORD ChkSum Checksum RESULTPKT Size of command execution result packet is 14 Bytes Instruction 1 If the Machine ID in the packet received from RS485 system is the same in the RS485 KNX converter and the packet is checked correctly the RS485 KNX converter will send ACK to the RS485 interface The received command should be used the format of CMDPKT while the ACK should be used the format of
4. 10 CMD SET FILTER MODE 1 254 the Input Parameter 1 length of filter table 12 13 0 Input Parameter 2 14 15 ChkSum Checksum TE 9 16 ACK Convertor External Byte Value Meaning 1 OxSA Always is Ox5A 2 OxA5 Always is 0xAS5 3 3 1 255 0 default Machine ID 5 0x00 NAK Response 15 E www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465 GVS K BUS9 KNX EIB RS485 KNX Converter 6 Ox01 ACK 7 ChkSum Checksum TE 8 EXERESULT Convertor External Byte Value Meaning 1 OxAA Always is OxAA 2 0x55 Always is 0x55 3 2 1 255 0 default Machine ID 0 Reserved 6 7 i 1 OK 0 Error Result 9 10 0 Output Parameter 11 12 13 ChkSum Checksum X TF 14 Setting Filter Table External Convertor Byte Value Meaning 1 OxSA Always is OxSA 2 OxA5 Always is OxA5 3 F 1 255 0 default Machine ID High Byte of the Group Address Low Byte of the Group Address Max Data 254 2 Bytes The Lower Byte of the Group High Byte of the Group Address Address follows the higher Byte and they should be Low Byte of the Group Address marked in ascending order e g Group Address 00 05 High Byte should places before 00 06 also 00 05 should places Low Byte before 01 05 High Byte Low Byte 19 NOTE 4 ChkSum Checksum 20 NOTE NOTE 1 According to K
5. EIB RS485 KNX Converter 7 ChkSum Checksum TE 8 EXERESULT Convertor External Byte Value Meaning 1 OxAA Always is OxAA 2 0x55 Always is 0x55 3 1 255 0 default Machine ID 4 5 0 Reserved 6 7 i 1 OK 0 Error Result 9 10 0 Output Parameter 11 12 13 ChkSum Checksum TE 9 14 Setting Data External Convertor Byte Value Meaning 1 OxSA Always is 0x5A 2 OxA5 Always is OxA5 3 r 1 255 0 default Machine ID 3 6 17 3 14 Bytes of Value nLength gt 3 Group Value 18 19 NOTE 4 36 ChkSum Checksum 4 5 Change the Monitor Mode 14 SS eee ee UMANE EMIZZ T www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465 GVS K BUS9 KNX EIB RS485 KNX Converter WorkStation Terminal SendCommand XH S CMD SET MONITOR MODE CMD SET FILTER MODE InParam 1 0 InParam 2 0 RecExeResult SendExeResult If Setting the CMD SET FILTER MODE Mode then the filter table should be send in 3 seconds after the command Protocol COMMAND External Convertor Byte Value Meaning 1 0x55 Always is 0x55 2 OxAA Always is OxAA 3 1 255 0 default Machine ID 4 5 0 Reserved 6 7 CMD_SET_MONITOR_MODE Command ID 8 CMD_SET_FILTER_MODE 9 CMD_SET_MONITOR_MODE 0
6. Protocol nnn eo nno rn nr o o 9 4 1 Default Communication Protocol 9 4 2 Command ID 10 4 3 Read Group Address 10 4 4 Write Group Address 12 4 5 Change the Monitor Mode 14 2 IElm r1 www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465 GVS K BUS KNX EIB RS485 KNX Converter 1 Summary The RS485 KNX converter is designed for intelligent building control system It has built in 2000V ESD protection The RS485 KNX converter can transfer two way signals but only RS485 devices can control the KNX EIB devices with current version of our open control protocol No standardized higher layer protocol for RS485 bus we define one in the chapter 4 of this manual for RS485 devices to control KNX EIB devices The users can configure or program the RS485 devices according to the protocol to achie
7. ACKPKT 2 After the command was executed the RS485 KNX convertor will report the execute result using the format of structure RESULTPKT 3 When write a Group Address which has more than 2 bytes Object Value the Object Value should be send to the RS485 KNX Convertor via Setting Data Command after the command is executed completely Having received a whole Setting Data Command the RS485 KNX convertor will convert the Command to EIB KNX bus and after transmit successfully it will report the execute result using the format of structure RESULTPKT to the RS485 interface The format of the command could be also seen in the table located in chapter 4 4 4 When read a Group Address ensure that the Communication Object has the read write transmit enable All the responds will be sent to RS485 interface using Data Respond Command having a header of 0Xa5 0x5A 4 2 Command ID enum The command ID for the connection CMD_SET_MONITOR_MODE 0x101 CMD_SET_FILTER_MODE CMD_SET_RANDOM_MODE The his command haven t defined temporary CMD GROUP ADDR READ CMD GROUP ADDR WRITE ie 4 3 Read Group Address 10 ss M 9 a di www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465 GVS K BUS9 KNX EIB RS485 KNX Converter WorkStation Terminal SendCommand ID CMD GROUP ADDR READ InParam 1 DEST ADDR CO LENGTH CO CONFIG InParam 2 0 RecExeResult OK 1 Error 0 Info Va
8. Always is 0xA5 2 OxSA Always is 0x5A 3 1 255 0 default Machine ID 4 SRC ADDR O E 9 Source Address DEST ADDR O E 3 Destination Address nLength Length of the Group Address Group communication Multicast APCI VALUE READ 0x0000 APCI VALUE RESP 0x0040 APCI of EIB telegram APCI VALUE WRITE 0x0080 1 14 Bytes of Value 19 NOTE 4 35 ChkSum Checksum 12 GVS K BUS9 KNX EIB RS485 KNX Converter WorkStation Terminal SendCommand ID CMD GROUP ADDR WRITE InParam 1 DEST ADDR CO LENGTH CO CONFIG InParam 2 0 Send DATA More than 2 Bytes CO VALUE RecData RecExeResult SendExeResult Protocol COMMAND External Convertor Byte Value Meaning 1 0x55 Always is 0x55 2 OxAA Always is OxAA 3 1 255 0 default Machine ID 4 5 0 Reserved 6 7 CMD GROUP ADDR WRITE Command ID 9 nConfig P We used the lowest 2 bits as the priority usually it equals 0x03 10 nLength TF 2 Input Parameter 1 11 NOTE 3 DEST ADDR 12 13 nLength lt 2 Group Value Input Parameter 2 14 Else 0 15 ChkSum Checksum 0 TE 16 ACK Convertor External Byte Value Meaning 1 OxSA Always is Ox5A 2 OxA5 Always is 0xA5 3 1 255 0 default Machine ID 5 0x00 NAK Response 6 Ox01 ACK 13 EE www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465 GVS K BUS9 KNX
9. KNX EIB bus system with other 485 bus system into a whole but also to ensure the reliability commonality and scalability of the system internal real time communication and thus really to realize openness of the system For receiving and sending communication control telegram The communication control telegrams are received and sent in accordance with the preformatted The formats of the telegrams are described in the next chapter communication protocol i e command format Each data in these command represent different meaning seeing the table in the next chapter Forconverting the telegram The telegram which is generated in strict accordance with the communication protocol format is received from the RS485 bus by the RS485 KNX converter While receives the telegram from the RS485 interface the RS485 KNX converter extract the EIB information from the telegram such as the group address length data type and value etc and then converted them into the KNX EIB telegram and sent to the KNX EIB system to control the KNX devices ACK report and executed result report When receives a telegram from the RS485 bus the RS485 KNX converter will check the CRC in the telegram first If the telegram is correct the RS485 KNX converter will respond to the RS485 bus via sending an ACK report If the telegram is not correct it will not respond When the telegram is successfully transmitted to the EIB bus the RS485 KNX converter will send a suc
10. NX Standard it has 4 types indicates 4 Transmission Priority 11 low operational priority 10 high operational priority 01 alarm priority 16 P er www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465 GVS K BUS KNX EIB RS485 KNX Converter 00 system priority Usually we use LOW priority so the nConfig will be 0x03 others are not recommended NOTE 2 The length of the Communication Object which was linked to the DEST ADDR according to the KNX standard e g when the CO lest than 1 byte it equals to 1 otherwise it equals to length 1 That is to say when we have a 1 bit CO then the nLength will be equal to 0x01 while a 1 byte CO will have the nLength of 0x02 NOTE 3 Destination Group Address which you want to read or write NOTE 4 The sum of all the data bytes before NOTE 5 The Physical Address of the device from whom sends out the telegram 17 www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465
11. cessful telegram to the RS485 bus If not successfully transmitted it will send a fail telegram to the RS485 bus see also RESULTPKT telegram Busmonitor and filter functions 6 E E www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465 GVS K BUS9 KNX EIB RS485 KNX Converter The RS485 bus system can monitor the data on the EIB bus via the RS485 KNX converter The RS485 KNX converter also provides filter function to group address When the filter function is set the RS485 KNX converter only forwards the telegram which group address in the filter table to the EIB bus or the RS485 bus The filter table can be modified or set by the RS485 device The Max Number of group address in the filter table is 254 General the bus monitor mode is suitable for most of the users The baud rate is programmable The baud rate refers to the binary data bits that are transmitted per second on the RS485 bus Different devices have different baud rate The baud rate of the RS485 KNX convertor can be set to the same with the devices on the RS485 bus via the parameter Reading and writing data type The data telegram that length is less than or equal tol4bytes can be sent to or read from the EIB bus via the RS485 KNX converter 3 2 Parameter setting description in the ETS Parameter window is shown below Here can set some parameters about RS485 KNX converter such as machine ID the baud rate st
12. connection the power supply for RS485 interface is provided by RS485 system The RS485 KNX Converter is connected to the KNX EIB system using EIB bus connection terminals and no need any extra voltage supply The RS485 KNX Converter is able to use the Engineering Tool Software ETS ETS3 or later with a VD4 file to allocate the physical address and set the parameters 3 e o M RHRp R PR M E M E www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465 GVS K BUS KNX EIB RS485 KNX Converter 2 Technical Properties amp Dimension and Circuit Diagram 2 1 Technical data Power supply Operating voltage 21 30V DC via the EIB bus Current input EIB lt 12mA Power consumption EIB lt 360mW RS485 interface VCC DC 9V VCC A40V recommend DC12V 24V Power consumption 42mW 12V 75mW 24V Max power consumption 120mW 12V 144mW 24V Outputs Number of outputs Ichannel Connections EIB KNX Bus connecting terminal black red 1 screw terminal for VCC 2 screw RS485 terminals for A and B bus 3 screw terminals for GND Wire range Single core 0 2 6 0mm Multi core 0 2 4mm7 Operating and Red LED and push button For assignment of the physical address display elements Green LED flashing Indicate the device running normally OK Temperature range Operation 5 C 45 C Storage 25 C
13. gth of data transmission as 8bits A value can be sent from 0 to 255 Parameter Stop bits This parameter defines stop bits of data transmission Options 0 5 1 1 5 2 Parameter Parity This parameter defines parity of data transmission Options None Odd Even Parameter Acknowledge enable This parameter defines whether sends an ACK report to the RS485 bus when a RS485 telegram is received successfully by the RS485 KNX converter Option Enable Disable 8 E www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465 GVS K BUS KNX EIB RS485 KNX Converter Parameter Delay of ACK in 0 500 ms This parameter is visible in the parameter Acknowledge enable with enable which is used to set the delay time when the converter sends an ACK report When the delay time has elapsed the ACK report is sent Option 0 500 ms Parameter Command execute result This parameter defines whether sends an executed result report to the RS485 bus when a RS485 telegram is transmitted successfully to the EIB bus via the RS485 KNX converter Option Enable Disable 4 Communication Protocols 4 1 Default Communication Parameters Baud rate of the RS485 KNX convertor 38400 Parity None Word length bits 8 Stop bits 1 this means that the device does not need to configure via ETS and can be used directly after leave factory Command packet typedef struct BYTE Headl
14. lue RecData Include CO value SendExeResult SendData Fax 8620 39338465 Protocol COMMAND PC Convertor Byte Value Meaning 1 0x55 Always is 0x55 2 OxAA Always is OxAA 3 1 255 0 default Machine ID 4 5 0 Reserved 6 7 CMD_GROUP_ADDR_READ Command ID 8 9 nConfig We used the lowest 2 bits as the priority usually it equals 0x03 10 nLength T Input Parameter 1 DEST ADDR SS 12 13 0 Input Parameter 2 14 15 NOTE 4 ChkSum Checksum 16 ACK Convertor PC Byte Value Meaning 1 OxSA Always is Ox5A 2 OxA5 Always is 0xA5 3 1 255 0 default Machine ID 4 11 www video star com cn maketing video star com cn Tel 8620 39338986 4 4 Write Group Address www video star com cn maketing video star com cn Tel Fax 8620 39338986 8620 39338465 GVS K BUS KNX EIB RS485 KNX Converter 5 0x00 NAK Response 6 0x01 ACK 7 ChkSum Checksum TE 4 8 EXERESULT Controller PC Byte Value Meaning 1 OxAA Always is OxAA 2 0x55 Always is 0x55 3 1 1 255 0 default Machine ID 5 0 Reserved 6 7 1 OK 0 Error Result 8 9 10 0 Output Parameter 11 12 13 ChkSum Checksum TE 4 14 Data respond Convertor PC Byte Value Meaning 1 OxA5
15. op bits and parity etc Because IP converter and RS485 converter use the same product database so before setting RS485 parameters you must select devices first as follow 1 1 1 IP and RS485 Convertor DTI EN Choose devices General Choose Device RS485 KNX OK Cancel Default Choose device www video star com cn maketing video star com cn Tel 8620 39338986 Fax 8620 39338465 GVS K BUS9 KNX EIB RS485 KNX Converter i 1 1 IP and RS485 Convertor Choose devices General General Machine ID 0 65535 default 0 Baud rate of the convertor Word length bits Stop bits Parity N one Acknowledge enable enable Delay of ACK in 07500 ms 0 Command execute result enable Cancel Default nfo RS485 parameter window Parameter Machine ID 0 255 default 0 Here set the machine ID of the RS485 KNX converter The ID is a unique identifier for naming the device throughout a RS485 installation while the physical address is also a unique identifier for naming the device throughout an EIB installation The machine ID option is 0 255 Parameter Baud rate of the convertor This parameter is used to set the baud rate of the RS485 KNX convertor The baud rate can be set to the same with the devices on the RS485 bus Options 4800 9600 14400 19200 38400 56000 577600 115200 Parameter Word length bits This parameter defines word len
16. ve the control The RS485 KNX converter has two working modes the monitor mode and the filter mode In the case of the monitor mode all active telegrams can be forwarded In the filter mode only the telegrams those with a group address in the filter table in the RS485 KNX converter will be forwarded to the otherside The filter table can be set via the filter table setting command from RS485 bus system The functions of the RS485 KNX are summarized as follows gt Open communication protocols for the RS485 interface gt To receive and transfer the telegram in defined format gt Converting the telegram from the RS485 bus to the KNX EIB telegram and sending to the KNX EIB system to control the KNX devices gt ACK report and executed result report gt Support bus monitor and filter functions the filter table can be configured or programmed The Max Number of group address is 254 in the table gt The baud rate of the convertor can be programmed gt To read and write any data type defined in the KNX standard Max 14 bytes This manual provides technical information as well as assembly and programming in detail about the RS485 KNX Converter for users and explains how to use the converter by the application examples The RS485 KNX Converter is a modular installation device It can be installed in the distribution board on 35 mm mounting rails according to EN 60 715 The device adopts screw terminal to achieve the RS485 bus
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