UART/RS232/RS485 Over Powerline Communication Transceiver
Contents
1. Inc www linksprite com V e e N Li n k p rite UART RS232 RS485 Over Powerline Communication Transceiver Module The raw data for debugging The module will output sent raw packets from host to the ATRW Raw Y N N module and not just the payload Y means turn on this function N means turning off Support compatible issue with Ariane MIO RS232 format ATMI MlOpattern Y N N The header of the data package will be A3 04 Search for peer ATSR Search none module on the power line network LinkSpriteTechnologies Inc 12 www linksprite com X LinkSprite UART RS232 RS485 Over Powerline Communication Transceiver Module e IV Repeater Function 1 Introduction To extend the coverage Linksprite modules have built in repeater function When the module s repeater function is turned on ON is the default setting the module echos the data packet from the power line while entertaining the data sent by host through the serial port Because of far distance data transmission can not be reached After adding repeater function to proper locations the data can be transmitted farther Transceiver function is not influenced by repeater function that is to say each module can be used as a separate repeater or can be seen as repeater when sending and receiving data It can not only send and receive data from the power line but also repeat other data packets In order t2. 2 3 Setting Illustration e Repeater function is available in the factory eOnce repeater function is modified it will immediately take effect and be preserved permanently even if the module is restarted 3 Repeater Hops A data packet could at most pass through third repeater three times It is shown as follows a a C ee es GE K The The first time LinkSpriteTechnologies Inc second time The third time No re transition www linksprite com X LinkSprite UART RS232 RS485 Over Powerline Communication Transceiver Module Data packet is sent from module A to module B From module B to module C is the first time to module D is the second time and to module E is the third time Module F is the termination Therefore data packet won t be sent to module F LinkSpriteTechnologies Inc 16 www linksprite com X LinkSprite UART RS232 RS485 Over Powerline Communication Transceiver Module V Logic Address 1 Logic Address Module data packets are transmitted in the way of broadcasting in power lines All modules will receive the data packets issued by the module and sent them through the serial port under carrier signals area When multiple modules are installed on the same power line network however one does not want them to communicate directly thus the networks can be addressed by the logic address Logic address is composed of two parts domain and nodes For example the logic address 1
3. 0 200 means that the domain value is 10 node value is 200 Logic address is the default setting 1 1 Module data packets can only be received and processed by the module at the same domain Other modules even detecting the carrier signal will not receive nor to transmit to the serial port or repeater LinkSpriteTechnologies Inc 17 www linksprite com S LinkSprite UART RS232 RS485 Over Powerline Communication Transceiver Module H C 10 8787 l 2002 1998 G D 2002 65500 10 1000 On the above figure A E are at the same network their domain values are 1 B D F H are at the same network its domain values are10 C G are at the same network their domain values are 2002 Although in the physically speaking all the modules are in a power line network the packet issued by A will only be received and processed by E other modules will not respond Similarly packet issued by F only B D H will receive and process packet issued by F other modules will not work 2 Address Setting step input response description 1 ok Enter command mode 2 ATDA 1 32767 Check domain values of present logic address Default factory setting is 1 3 ATNA 1 65535 Check nodes values of present logic address Default factory setting is 1 4 ATDA 2 ok Set domain value of logic address as 2 LinkSpriteTechnologies Inc www linksprite com S LinkSprite UART RS232 RS485 Over Powerline Communica
4. UART RS232 RS485 Over Powerline Communication Transceiver Module User Manual A LinkSprite LinkSprite Technologies Inc July 2008 www linksprite com X LinkSprite UART RS232 RS485 Over Powerline Communication Transceiver Module Table of Content SUMMA E 3 E dee te EE 3 2 FCAUULES 4 eseu eegene eeh eegene eenegen 4 SEI ee 5 4 Applications siessen ere neniani e niina nren eni E EEA ARE AEE N aE EEES aE i 5 I Diagram EE 6 F nction l Diagram ice ss uissceseasseesssucsvnssensioseccutelsoSeguetsisukevsesealbesstouteesspunivacobeuisnssbecsseessaetieee 6 2 Board Layout ctccscnusinGnananinGndnanandnanakcuGndnananGnanansnGncnanwnd 6 USD EEE E E E E E E E E 7 4 Definiton OL EE 7 I Command E TEE 8 1 Command Mod ogztekbiseazeek sceetd te 8 UR Enter command e 8 12 Exit COMMANG MOMS wniesie raene TETE NEE ENEKE EEA ENEE ERETTE 8 2 Arguments and Responses onces sccivecceoesvascocsessesseovascosssesesveostbecvovnsvesutsesnsssebtevedsenavtostosesnesentses 8 2 1 Arguments and Responses msirssisisieiirserisis eissa ii seeni ias ias 8 2 2 Commands without Argument 9 2 3 ee Ee 9 3 Command NEE 10 IV Repeater Function E 13 UR Wee e 13 2 PUNCUHON Setin on Ee Ee ee Eier 14 ZA SAM TEPSALEL Dt eebe ENEE ENEE dE 14 2 2 T n off rep ater MUNCION susirna nieres ranri 15 2 3 Setting UE ele 15 3 Rep at r Grades seei eriin eege ege eege 15 V RE 17 L ECosic EE 17 GEET 18 VI Application E 20 LinkSpriteTechn
5. ceiver Module 3 LED L1 PLC LED green mans module is sending data to PLC red means module is receiving data from PLC L2 System LED green means system is in normal L3 Serial port LED green means module is receiving data from aerial port red means module is sending data to serial port 4 Definition of Pin Power 1 VAC 220VAC 50Hz or 110VAC 60Hz lines 2 VAC 220VAC 50Hz or 110VAC 60Hz Module 3 18V 18VDC power 4 18V 18VDC RS485 5 RS485 B RS485busB bus 6 RS485 A RS485 bus A GND 7 GND GND RS232 8 RS232TXD RS232 data transmission should link to PC s interface RXD 9 RS232 RXD RS232 data receiving should link to PC s RXD LinkSpriteTechnologies Inc 7 www linksprite com X LinkSprite UART RS232 RS485 Over Powerline Communication Transceiver Module IT Command Interface 1 Command Mode 1 1 Enter command mode The module can be put into command mode by sending through serial port The module will respond with an ok In order to prevent the situation where the user data mistakenly triggers the command mode there must be no serial port data input one second before and after the receiving of At the same time the gap between the three should not be more than one second otherwise it will be considered as a data rather than a command 1 2 Exit command mode There are two approaches to exit command mode One way
6. is to input command ATEX The other is to timeout and automatically exit In either case the modules will response exited The timeout value can be set by command ATTO 2 Arguments and Responses 2 1 Arguments and Responses For all the commands with arguments if the parameters are correct the module will respond with an ok Otherwise the modules will response with an invalid para If there are no arguments associated with the commands it will be treated as polling modem and the module will respond with the existing arguments residing in the module LinkSpriteTechnologies Inc 8 www linksprite com X LinkSprite UART RS232 RS485 Over Powerline Communication Transceiver Module 2 2 Commands without Arguments There are four commands without arguments e enter command mode will directly return ok e ATEX exit the command mode return exited e ATRS software reset will reset the module immediately no return e ATSR in search for other modules on the power lines this will return the name of the found module Please wait for two seconds after sending a command The name of module received in two seconds will be shown in the serial port otherwise the name received after two seconds will be ignored Note In the course of searching all bytes input from serial port also will also be ignored 2 3 Modified arguments Except for serial arguments the modified arguments will be immediatel
7. o prevent network congestion the module is smart enough to know the data were sent or repeated by itself and will discard the data LinkSpriteTechnologies Inc 13 www linksprite com X LinkSprite packets when receiving the duplicated ones UART RS232 RS485 Over Powerline Communication Transceiver Module Note Due to the fact that repeaters will resent the received data packets if the number of repeater is too large a number of repeaters will seize the channel and lead to increased communication time When deploying the repeater one should take full account of the balance of reliability and real time 2 Function Setting AT command ATRP is designed to set up the repeater function 2 1Turn on repeater function Steps input response description 1 ok Enter command mode 2 ATRP YorN Poll current repeater status Y is on N for off 3 ATRP Y ok Turn on repeater function 4 ATRP Y Check present repeat status ON 5 ATEX exit Exit command mode LinkSpriteTechnologies Inc www linksprite com X LinkSprite 2 2Turn off repeater function UART RS232 RS485 Over Powerline Communication Transceiver Module steps input response description 1 ok Enter command mode 2 ATRP YorN Check current repeater status Y is on N for off 3 ATRP N ok Turn off repeater function 4 ATRP N Check current repeater status OFF 5 ATEX exit Exit command mode
8. ologies Inc 2 www linksprite com X LinkSprite UART RS232 RS485 Over Powerline Communication Transceiver Module I Summary 1 Introduction UART RS232 RS485 are widely used in industrial control and instrument fields PLC UART PLC RS232 RS485 transceiver modules from LinkSprite LinkSprite modules are transceiver modules designed to send receiver UART RS232 RS485 data over the powerline network PLC RS232 RS485 is designed to transparently move serial data over the powerline network and achieves the target of replacing RS232 RS485 cables by the ubiquitous powerline network LinkSprite modules have the built in packet level repeater function This feature can greatly extend the coverage of the powerline communication LinkSprite modules has both physical and logic addresses In a network both physical and logic addresses can be used to address different nodes in the network LinkSpriteTechnologies Inc 3 www linksprite com X LinkSprite UART RS232 RS485 Over Powerline Communication Transceiver Module 2 Features eFully transparent mode plug and play coming out of the box without the need to do any programming e Built in error correction codes e Built in repeater function to extend the coverage ePhysical and logic address eAT commands used for advanced configuration e UART RS232 interface and RS485 bus eFSK Frequency Shift Keying modulation used in physical layer e Low power e RoHS e Small mod
9. om SS LinkSprite LinkSpriteTechnologies Inc 22 www linksprite com
10. tion Transceiver Module 5 ATNA 45 ok Set nodes of logic address as 45 6 ATDA 2 Check domain values of logic address 7 ATNA 45 Check node values of logic address 8 ATEX exited Exit command mode LinkSpriteTechnologies Inc www linksprite com S LinkSprite UART RS232 RS485 Over Powerline Communication Transceiver Module VI Application Illustration Intelligent instruments widely adopt RS485 bus to communicate For example the power meter automatic meter reading systems data concentrator through the RS485 bus read the message from power meter RS485 A B Data concentrator In order to automatically meter reading RS485 bus needs to be deployed Here using PU R485A module one can use the existed power lines to directly complete data transmission LinkSpriteTechnologies Inc 20 www linksprite com X LinkSprite Power lines PU Power R485A meter PU Power Power PU R485A meter meter R485A PU Power Power PU R485A meter meter R485A PU R485A Data concentrator Power PU meter R485A LinkSpriteTechnologies Inc 21 www linksprite com UART RS232 RS485 Over Powerline Communication Transceiver Module X LinkSprite UART RS232 RS485 Over Powerline Communication Transceiver Module LinkSprite Technolgies Inc 1410 Cannon Mountain Dr Longmont CO 80503 Voice 720 949 4 932 Email sales linksprite com http www linksprite c
11. ule size and easy to be implemented into existing products LinkSpriteTechnologies Inc 4 www linksprite com X LinkSprite 3 Specifications UART RS232 RS485 Over Powerline Communication Transceiver Module Product name PLC UART RS232 RS485 Transceiver Module Interface UART RS232 or RS485 Operating Voltage 230VAC 50Hz 110VAC 60Hz Modulation FSK Frequency Shift Keying Carrier frequency 262K 144KHz Error Correction FEC Forward Error Correction Data rate on Powerline 30Kbps Maximum packet data length 320bytes Repeater Hops 3 Hops Transmission distance 300 feets no repeater Support nodes number 65535 LED Power Line Activity LED system LED serial port LED 4 Applications eAMR elndustry manufacture and control eSafeguard fire alarm smoke alarm eCollect and transmit instrument data eSafeguard and monitor eHome automation LinkSpriteTechnologies Inc 5 www linksprite com X LinkSprite UART RS232 RS485 Over Powerline Communication Transceiver Module e II Diagram 1 Functional Diagram Carrier signal Power lines Coupling circuit Power lines carrier module 2 Board Layout VAC VAC 18V 18V PU R232A R485A Module RS485 B RS485 A GND RS232 TXD RS232 RXD LinkSpriteTechnologies Inc 6 www linksprite com X LinkSprite UART RS232 RS485 Over Powerline Communication Trans
12. y saved into eeprom and take effect The serial arguments won t take effect immediately after being modified to avoid user from modifying PC serial arguments before inputting command Serial arguments will take effect through automatically resetting module when exiting the command mode LinkSpriteTechnologies Inc 9 www linksprite com X LinkSprite UART RS232 RS485 Over Powerline Communication Transceiver Module 3 Command List Command Description Arguments Description Default Control Class Enter command none mode ATEX Exit none Exit command mode Timeout value ATTO Time out 1 30 5 unit second ATRS Reset none Software reset Network class Domain Domain Address of ATDA 1 32767 1 Address Logic Address Node Node Address of ATNA 1 65535 1 Address logical address LinkSpriteTechnologies Inc 10 www linksprite com X LinkSprite UART RS232 RS485 Over Powerline Communication Transceiver Module Function class Relay function Y is ATRP Repeater Y N Y on N for off A string ATNM Name with length Set the name of the PU R485A less than 15 module Communication class 1200 2400 ATBD Baud Rate 4800 9600 Baud Rate 9600 19200 ATDB Data Bit 5 6 7 8 Data bit 8 Parity bit N no O ATPA Parity N O E SES N E even ATST Stop Bit 1 2 Stop bit 1 Debug class LinkSpriteTechnologies
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