Marmitek CTX35 user manual
Contents
1. A MARMITEK Marmitek X 10 Home Automation RS232 interface type CTX35 Marmitek X 10 CTX35 Table of contents 1 Overview 1 1 RS485 RS232 signals 12 Marmitek X 10 signals 1 3 Test software w w w 2 Protocol 2 Quick reference Packet description RS485 RS232 signal sent to 5 RS485 RS232 signal received from CTX35 Table 1 CTX35 commands Fo o tA Table 2 Marmitek X 10 commands alalaji sa S 3 Required packet information O 3 CTX35 command O 4 Optional packet information 4 Letter Code Number Code example A 1 4 1 1 Letter Code 4 1 2 umber Code 4 2 Zero Crossings example space 4 3 Letter Code Standard Marmitek X 10 Command example A O N 4 3 1 Letter Code 4 3 2 Standard Marmitek X 10 Code 44 Extended Code Message example A 1 1 6 F F A E 4 4 1 Letter Code 4 4 2 N 4 4 3 Unit Data 44 4 Data 4 4 5 Type 4 4 6 Command CO CO CO CO O0 NW NIN NIN NIN 5 Miscellaneous 5 1 Indaction LEDs 5 2 Cable pinout configuration 5 3 Longest RS232 packet expected from CTX35 O O oO o 5 4 Calculating the largest string to expect from CTX35 depending on polling interval PCC side2. Marmitek X 10 CTX35 3 Required packet information This byte will always be the 1 st byte of any packet involving the CTX35 uge or This byte will always be the 2 nd byte of any packet involving the CTX35 ue This byte will always be the 3 rd byte of any packet involving the CTX35 g This byte will always be the 4 th byte of any packet involving the CTX35 A un ASCII representation of the upper nibble of the hex value of the address This byte will always be the 5 th byte of any packet involving the CTX35 This byte will always be an ASCII 0 A In ASCII representation of the lower nibble of the hex value of the type This byte will always be the 6th byte of any packet involving the CTX35 Valid addresses are 016 F16 lor This byte is only contained in a response from the CTX35 It will always be the 7 th byte 3 1 CTX35 command This byte is only used in a transmit to the CTX35 It will always be the 7 th byte CTX35 COMMAND is a byte that will contain a value with a range of 0 9 and AZ This byte will contain the ASCII representation of the digit or the letter desired e g 0 9 and A Z f the 0 command is sent an additional byte 8 th byte must be sent to select specific command CTX35 command 0 Send Sub Command to TI see Table 1 for specific sub commands 1 Send Marmitek X 10 Data on Power Line transmit 2 Send Marmitek X 10 Data
3. 5 5 Query or poll interval 6 Technical data 7 Undisturbed functioning of Marmitek X 10 home automation 1 Overview The Marmitek X 10 communication transceiver CTX35 is a power line carrier transceiver with 9600bps 19 2Kbps serial data communications A building automation system or other IBM compatible PCs can use the CTX35 to monitor and control Marmitek X 10 compatible control modules It can receive and transmit standard Marmitek X 10 and Marmitek X 10 extended control protocols Transmit commands and received data is reformatted in ASCII such as A1 ON B3 DIM etc to make it more user friendly than other similar devices The CTX35 has a received data buffer feature which insures that the host computer will never miss a monitored transmission Communicates to a host via RS485 or RS232 at baud rates of 9600bps or 19 2Kbps default Baud rate is hard wired selectable by Marmitek Other settings No parity 8 databits 1 stopbit Maximum 30 byte packet via interface buffer RS485 or RS232 11 232 5 Has locations to store ten distinct frames If the frames that are sent to the CTX35 are identical to the frames sent to the CTX35 immediately before and there were no zero crossings between the frames only one location will be taken Once this buffer is full the CTX35 will respond to the next attempt to send data to the CTX35 with the STATUS BUFFER FULL response This means that the previous send of da
4. COMMAND SUB COMMAND see Table 2 Letter Code Number Code A01 P16 space character indicates zero crossing gap Letter Code X 10 Command see table 2 Letter Code 11 Unit Data Data Command Type extended message format CC checksum p protocol format 2 1 3 RS485 RS232 signal received from CTX35 e protocol format 28 device type AA address type or 2 ACK NAK Letter Code Number code A01 P16 space character indicates zero crossing gap Letter Code X 10 Command see Table 2 Letter Code N Unit Data Data Type Command extended message format or CTX35 Data this can only be sent by itself CC checksum un protocol format 2 1 4 Table 1 CTX35 commands 0 Send Sub Command to CTX35 0 Query CTX35 1 Transmit Marmitek X 10 Data on Power Line 2 Send Marmitek X 10 Data to CTX35 3 Z Reserved for Future Use 2 1 5 Table 2 Marmitek X 10 commands ON On OFF Off DIM Dim BGT Bright ALN All Lights On AUF All Units Off ALF All Lights Off HRQ Hail Request HAK Hail Acknowledge SON Status ON SOF Status OFF SRO Status Request If the CTX35 can not accept any more Marmitek X 10 commands to be sent out on the powerline it will respond with a packet indicating its buffer is full 6 lt 2800 SOCE
5. from the powerline Poll intervals are dependent on the type of application 6 Technical data Supply voltage 230 V 50 Hz Input current 15W Signal strength sending 5 Vpp in 5 Ohm Signal sensitivity 15 mVpp min 50 mVpp bij 120 kHz Serial connection 9 pin Sub D connector Approval EN 60950 EN 55022 EN 55024 Marks CE 7 Undisturbed functioning of Marmitek X 10 home automation Electrical equipment and systems can be sensitive to signals from other equipment which causes electro magnetic disturbance In the European Union countries agreed upon laws for the immunity sensitivity of signals of other equipment as well as equipment emission disturbance When equipment or applications in a certain surrounding comply with the valid standards they will not disturb each other s operations they are called Electro Magnetic Compatible For residential surroundings where the home automation system Marmitek X 10 is being applied the European standard for immunity is standardised in EN 61000 6 1 Equipment that complies with this standard is resistant to electro magnetic emission of other equipment which complies with the European standard EN 61000 6 3 for residential surroundings Experience has shown that in domestic surroundings equipment is being used which has an EMC emission level that is above the levels stated in EN 61000 6 3 This equipment can disturb the correct functioning of the Marmitek X 10 modul
6. to CTX35 store received data 3 Z Reserved for Future Use PLACE OPTIONAL INFORMATION see below IN PACKET HERE C un ASCII representation of the upper nibble of the hex value of the checksum This byte will always be the third from the last byte of any packet involving the CTX35 C In ASCII representation of the lower nibble of the hex value of the checksum This byte will always be the second from the last byte of any packet involving the CTX35 This byte is always the last byte of any packet CTX35 Installation Instructions 4 Optional packet information The following information can be in any order It is important to note that the maximum packet length is 30 bytes 10 bytes are reserved for required packet information listed above There are 4 types of data that are included in the Optional Packet information 1 Letter Code Number Code 2 Zero Crossing denotation 3 Letter Code Command Code 4 Extended Code Message The above information can be represented in the packet in any order and combination Each type of information and how it is represented is described below 4 1 Letter Code Number Code example A 0 1 4 1 1 Letter Code This byte will contain the ASCII representation of the letters A P 4 1 2 Number Code This information requires two bytes and is the ASCII representation of the Number Code 2 Digit Number Code tens place 2 Digit Number Code ones place As state
7. 5 receives valid data and can accept it will respond with a packet containing a ACK If the CTX35 receives a request for all received Marmitek X 10 commands and has none the CTX35 will respond with a packet containing no optional information along with an ACK 5 1 Indication LEDs The Rx and Tx LEDs on the front of the CTX35 indicate communications between the external automation system and the CTX35 When Rx flashes the CTX35 receives from the external system When Tx flashes the CTX35 sends to the external system 52 Cable pinout configuration RS232 Pin 2 Tx RS485 Pin 3 RS485 Pin 3 Rx Pin 8 RS485 Pin 5 Ground All other pins unused Marmitek X 10 CTX35 10 5 3 Longest RS232 packet expected from CTX35 Extended code frames take 10 bytes to report so 10 x 32 possible identical frames x 64 buffer locations 20 480 bytes header and footer information Having said that the chances of getting 32 possible identical frames x 64 buffer locations are very slim That would mean that 64 x 32 extended code frames were transmitted one right after another with no zero crossings between them 54 Calculating the largest string to expect from CTX35 depending on polling interval PCC side Extended code frames are 62 bits in length and are usually sent twice so one actual transmission of two extended code pairs takes 1 24 seconds 50Hz Desired poll interval will influence how large a stri
8. This number is preceded by the ASCII character and followed by the ASCII character 44 3 Unit Data This information requires two bytes and is the ASCII representation of the Unit Data Code 2 Digit Unit Data Code tens place 2 Digit Unit Data Code ones place The 2 Digit Unit Data Code is comprised of two bytes a tens place byte and a ones place byte The valid range is 1 16 where 1 is represented by 0 1 and 16 is represented by 1 6 and so on 4 44 Data This information requires two bytes It is the ASCII representation of the hex value of the data desired to be sent Data un ASCII representation of the upper nibble of the hex value of the address Data In ASCII representation of the lower nibble of the hex value of the address 4 4 5 Type This byte is the ASCII representation of the hex value of the type 4 4 6 Command This byte will contain the ASCII representation of the hex value of the bit pattern of the command 5 Miscellaneous The CTX35 can store up to 64 Marmitek X 10 frames CTX35 has 64 buffer locations The CTX35 will also store up to 32 of the same frames in one buffer location if received one right after another with no zero crossings between them This means that theoretically the CTX35 can store 32 identical frames x 64 of the buffer locations Note Extended code frames are the longest If the CTX35 receives invalid data it will respond with a packet containing a NAK If the CTX3
9. d above the 2 Digit Number Code is comprised of two bytes a tens place byte and a ones place byte The valid range is 1 16 where 1 is represented by 0 1 and 16 is represented by 1 6 and so on 42 Zero Crossings example space This byte will contain the ASCII representation of the space character It represents six zero crossings between valid transmissions t does not denote number of zero crossings 43 Letter Code Standard Marmitek X 10 Command example A 0 N 4 3 1 Letter Code This byte will contain ASCII representation of the letters A P Marmitek X 10 CTX35 4 3 2 Standard Marmitek X 10 Code This information will require two to three bytes The following defines the Marmitek X 10 Standard Commands The packet data will be the ASCII representation of the following letters ON On OFF Off DIM Dim BGT Bright ALN All Lights On AUF All Units Off ALF All Lights Off HRO Hail Request HAK Hail Acknowledge SON Status On SOF Status Off SRO Status Request 44 Extended Code Message example A 2 n 1 6 F F A E This is the most complex information handled by the CTX35 One extended code message will require 8 bytes in any packet of the CTX35 Letter Code N Unit Data Data Type Command 4 4 1 Letter Code defined above 442 N This byte is the ASCII representation of the extended code number Valid range is ASCII 1 3
10. es The immunity of the Marmitek X 10 built in modules is therefore revaluated and equivalent to EN 61000 6 2 the more severe European standard for immunity in industrial surroundings Nevertheless the application area for Marmitek X 10 will remain restricted to residential areas Marmitek X 10 is therefore not responsible for the disfunctioning of the Marmitek X 10 system as a consequence of equipment in the building with emission levels that exceed the maximum allowed levels set as standard for residential commercial and semi industrial surroundings stated in EN 61000 6 3 Application area Valid European Standard Marmitek X 10 home automation Immunity of equipment Emission of equipment Immunity and emission standards Residential 61000 6 1 61000 6 3 Compatible Commercial meets the requirements Semi industrial Condition is that the total Marmitek X 10 system is installed in accordance with valid instructions supplied by a certified and trained Marmitek X 10 dealer n Copyrights Marmitek is a trademark of Pattitude B V CTX35 is a trademark of Marmitek B V All rights reserved Copyright and all other proprietary rights in the content including but not limited to model numbers software audio video text and photographs rests with Marmitek B V Any use of the Content but without limitation distribution reproduction modification display or transmission without the prior written consent of Marmitek is strictly pro
11. hibited All copyright and other proprietary notices shall be retained on all reproductions KE ce NETWORKS a MARMITEK www marmitek com 20382 20100623
12. ng of information to expect from the CTX35 when queried For example if the CTX35 is polled every 10 seconds that would theoretically allow for 10 extended code frame pairs Ten of extended code frame pairs x 10 bytes to report 200 bytes E Example 7 bytes for the header 200 bytes the data 10 bytes space between each frame pair 3 bytes the footer 220 bytes for a 10 second poll interval using extended code A few points about how often to poll the example used extended code to show how large a buffer will possibly be need How often to poll If you are using standard code more often because it takes less time to fill the CTX35 s buffer 5 5 Query or poll interval A standard code frame is 22 bits and is usually sent twice 44 bit frame pairs There is always at least 6 zero crossings between each frame pair That adds up to 50 bits per frame pair including the 6 zero crossings Fifty 50 bits takes 5 seconds to transmit on the powerline so it would take the 64 buffer locations 32 seconds to fill up This is if there is a constant PCC signal being transmitted for a period of 32 seconds and each frame pair was distinct this rarely happens but is theoretically possible This information influences how large a string to expect from the CTX35 when queried The CTX35 can receive approximately 26 extended code frame pairs in 32 seconds How often to poll also is influenced by how fast information is needed
13. rames that ollow without a zero crossing between them will not be logged This allows it to receive up o 64 identical 32 frame PCC transmissions If he CTX35 is in polite mode it will look for collisions as it is transmitting and if it sees a collision it will stop transmitting It will wait for Six zero crossings before trying to transmit again There is no limitation on the number of retries fferent frames If a frame is received more 13 Testsoftware On the website www marmitek com you will be able to download test software for your computer to send or receive Marmitek X 10 commands via the CTX15 or CTX35 Marmitek X 10 CTX35 2 Protocol A Address CTX35 RS485 This is defined mechanically or via software through the user s control module default address 0 C Checksum This is defined as the sum of all previous bytes TYPE Type This is defined by Marmitek X 10 extended code protocol ACK NAK un upper nibble In lower nibble 21 Quick reference Format key id constant strings indicates a concatenation of strings contains required information contains optional information comments 24 1 Packet description Parity None Data Bits 8 Stop Bits 1 Baud Rate 9600 or 19200 2 12 RS485 RS232 signal sent to 5 gt protocol format 28 device type AA address type CTX35
14. ta filled the buffer Note if the previous send to the CTX35 contained more than one frame and they were distinct it is possible that one or more of those frames were not put into the buffer The STATUS BUFFER FULL is sent when the buffer is full upon sending data to the CTX35 it is not sent when the buffer becomes full AFTER sending data to the CTX35 If Marmitek X 10 transmissions are desired with no zero crossings between frames and the Marmitek X 10 information desired to be sent will not fit in the 30 byte limitation of the receive packet the Send Marmitek X 10 Data to CTX35 command can be used This allows the desired Marmitek X 10 information to be sent as many times as desired without the CTX35 actually transmitting Once the desired Marmitek X 10 information is transmitted to he CTX35 via RS232 or RS485 the Transmit Marmitek X 10 Data on Power Line command can be sent to send the information out on to he power line without any zero crossings between frames The frames must be identical 12 Marmitek X 10 signals The CTX35 has locations to store up to 64 different PCC frames or packets 64 buffer ocations If the same frame is received more han once without a zero crossing between the rames only one location will be used to store his information This leaves 63 locations for di han 32 times without a zero crossing between rames the CTX35 will only store the first 32 rames All subsequent identical f
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