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XYR 300D Wireless Serial Radio Modem

1. Numeri Verbal Message ATX setting Comments c Code X0 X1 X2 X3 0 OK e e e Valid Command Entered 1 CONNECT e Connection established CONNECT baud is displayed for X1 X2 X3 2 RING e e Module Received an incoming connection request 3 NO CARRIER e e Connection with remote module lost or not initiated 4 ERROR Invalid Hayes command entered 7 BUSY e e X0 X1 display NO CARRIER instead of BUSY 13 RINGING e X0 X1 X2 Don t display RINGING message 15 CONNECT 19200 e e CONNECT is displayed for X0 17 CONNECT 57600 e e CONNECT is displayed for X0 19 CONNECT 115200 e e CONNECT is displayed for X0 56 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08
2. must be selected if using the RS485 port the XYR 300D Wireless Serial resets CTS when it is 32 XYR 300D Wireless Serial Radio Modem Settings Radio Serial Advanced S Reg Baud Rate 3600 bd Data Bits e a Y PLC Mode Data Terminal Ready DTA Control Ignore DTA C Command Mode Command Mode Disconnect C Low Power Disconnect Data Carrier Detect DCD Control C Always On Only High When Connected Pulse Low on Disconnect Stop Bits Parity None v Flow Control AS 485 v transmitting data If you want full duplex operation of the RS232 port then you need to select None or CTS RTS in the RS485 setting default setting the RS232 port will operate in half duplex DTR Control The DTR signal on the RS232 port can be used for different functions in controlled mode Ignore DTR the DTR signal does not perform any function Command Mode if the host resets DTR the XYR 300D Wireless Serial will go into command mode when DTR is activated the module will revert to on line mode Command Mode Disconnect as above except that the module will also force a disconnection of the communications link Low Power Disconnect when the host resets DTR the module will disconnect the link and go to low power mode If you select the Low Power option in the Controlled Mode page this selection of DTR will be automatically made Version 1 XYR 30
3. e Character type the XYR 300D Wireless Serial will accept a variety of 7 or 8 data bit characters e Serial Data Rate between 1200 and 115200 bits sec Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 1 5 1 08 e Radio Data Rate 19200 57600 or 115200 bits sec e Operating mode transparent mode or controlled mode The operation of the XYR 300D Wireless Serial radio modem is relatively simple As data is received at the serial port the data is transmitted on the radio channel Up to 530 bytes of data can be transmitted in one transmission The radio transmission commences when the first data byte is received and ends when there are no more data bytes in the input buffer or when the number of bytes transmitted equals the maximum message length user configurable default 530 bytes If more than 530 bytes is input the XYR 300D Wireless Serial unit will transmit the first 530 bytes then the next 530 bytes and so on until all of the data has been transmitted Because the radio data rate could be less than the input serial data rate an input memory buffer of 2Kbytes is provided The RS232 connection provides CTS control to prevent the buffer overflowing There are no data flow control signals for RS485 A radio channel cannot provide as secure a data channel as a wired connection The XYR 300D Wireless Serial uses a radio band with a low level of natural or industrial noise however there is a chance of interference from
4. Set the operating mode to controlled mode AT amp M2 amp L3 Note that this module can be configured as any controlled mode except for fast operation Exit and save the configuration AT amp W ATO Module 3 Set the module to factory default settings AT amp F Set the system address to the same random number AT amp S217 Set the unit address to 3 AT amp U3 Set the operating mode to controlled mode auto connect slave AT amp M2 amp L3 Exit and save the configuration AT amp W ATO Verson1 XYR300D Wireless Serial Radio Modem User s Manual 41 5 1 08 Module 100 Note that 100 is the master unit for a link between 100 and 101 It is also acting as repeater in the 1 to 3 link The system address for 100 and 101 must be the same as the other modules so that 100 can act as a repeater Set the module to factory default settings AT amp F Set the system address to the same random number AT amp S217 Set the unit address to 100 AT amp U100 Set the autodial address to 101 AT amp Z0 101 Set the operating mode to controlled mode auto connect master AT amp M2 amp L2 Exit and save the configuration AT amp W ATO The configuration for 101 is not shown as it is not part of the active link 4 7 Switch Configuration Some configurations can be made using the four DIL switches mounted in the end plate of the module The DIL Switches are only read at power up and change the volatile configuration of the module The non volatile confi
5. 602 313 3293 Mail Honeywell TAC MS P13 2500 West Union Hills Drive Phoenix AZ 85027 World Wide Web Honeywell Solution Support Online http www honeywell com ps Elsewhere Call your nearest Honeywell office Training Classes Honeywell Automation College http www automationcollege com iv XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 Symbol Definitions The following table lists those symbols used in this document to denote certain conditions Symbol Definition Uy CAUTION FI DOP gt pe o ATTENTION Identifies information that requires special consideration TIP Identifies advice or hints for the user often in terms of performing a task Indicates a situation which if not avoided may result in equipment or work data on the system being damaged or lost or may result in the inability to properly operate the process CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury It may also be used to alert against unsafe practices CAUTION symbol on the equipment refers the user to the product manual for additional information The symbol appears next to required information in the manual WARNING Indicates a potentially hazardous situation which if not avoided could result in serious injury or death WARNING symbol on the equipment refers the user to the product manual for additional information The
6. E18 Z0 28 38400 57600 L2 1101 AT amp M3 amp U1B2C10 amp E1 amp Z0 2 57600 115200 amp L2 0011 Fast Controlled Mode amp M3 amp U2B0C4 amp E1 amp L3 9600 19200 Auto connect slave 1011 MAT amp M3 amp U2B1C6 amp E1 amp L3 19200 57600 0111 AT M3 U2B1C9 E14 L3 38400 aa 1111 AT amp M3 amp U2B2C10 amp E1 amp L3 57600 115200 Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 5 1 08 43 Chapter Five General EMC specification Radio specification Housing Terminal blocks LED indication Operating Temperature Power Supply Nominal supply Current Drain 12VDC Current Drain 24VDC Radio Transceiver Spread spectrum frequency hopping Transmit power Signal detect RSSI 44 XYR 300D Wireless Serial Radio Modem User s Manual SPECIFICATIONS FCC Part 15 EN 300 683 AS 3548 FCC Part 15 427 AS 4268 2 RFS29 NZ 110 x 185 x 30mm DIN rail mount Removable OK operation Serial RX and TX Radio RX and TX DCD active 40 to 55 degrees C 40 to 70 degrees C 0 99 RH non condensing 10 to 30VDC 13 to 24VAC 80 mA quiescent 20mA low power mode 50 mA quiescent 15mA low power mode 100 channels 16 hop sets 1W 120 to 60 dBm 89 336 EEC 902 928MHz 1W 915 928MHz 1W 920 928MHz 1W Powder coated extruded aluminium Suitable for 12 gauge 2 5sqmm conductors Full performance Typical performance Overvoltage and
7. Receive BER Test Used with a second module configured as a 46 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 Chapter Six Troubleshooting transparent repeater amp T3 RSSI Measurement Monitors the received signal strength and displays in dBm Most radio tests are carried out using the AT amp T2 test as this is the easiest to accomplish AT amp TS3 Received Signal Strength Display This option provides for testing the radio path between two XYR 300D Wireless Serial units Although a pair of units may communicate successfully radio communication may be affected by a range of influences including atmospheric conditions changing landscape degradation of antennas or co axial cable low battery voltage etc Fade margin is an indication of how far a radio path can deteriorate before reliable communication becomes unreliable When using this feature the current value of the received signal strength is displayed in dBm decibels referenced to 1 mW This value is updated every half second To check the radio path between two units force the remote unit to generate data and read the signal level from the local terminal The remote unit can be forced to transmit by selecting AT amp TO or by selecting 0011 on the four DIL switches and resetting the power to the module Also measure the background noise by stopping transmission from the remote module and reading the value from the terminal The readout will jump around as the
8. alterations or modifications undertaken other than by an authorized Service Agent Honeywell s liability under this warranty is limited to the replacement or repair of the product This warranty is in lieu of and exclusive of all other warranties This warranty does not indemnify the purchaser of products for any consequential claim for damages or loss of operations or profits and Honeywell is not liable for any consequential damages or loss of operations or profits resulting from the use of these products Honeywell is not liable for damages losses costs injury or harm incurred as a consequence of any representations warranties or conditions made by Honeywell or its representatives or by any other party except as expressed solely in this document Full product specifications and maintenance instructions are available from your Service Agent your source of purchase or from the master distributor in your country upon request and should be noted if you are in any doubt about the operating environment for your equipment purchase In the event of your purchase being faulty your warranty extends to free repair or replacement of the faulty unit after its receipt at the master distributor in your country Our warranty does not include transport or insurance charges relating to a warranty claim Should you wish to make a warranty claim or obtain service please forward the module to the nearest authorized Service Agent along with proof of purcha
9. 25 CHAPTER FOUR CONFIGURATION eessessceseessescoescesscesoesccssoesocsseesoesooesecsoeecoeseesseee 26 5 1 08 4 1 BEFORE CONFIGURING ccccccccccccssssceccccccccccssssesccccccceenssssescescceesensssescesccsesenseesescoseceeea 26 5 1 08 4 2 ADDRESSIN Ga asd heaton died ene 27 4 3 DEFAULT CONFIGURATION ccccccccccssssesceccccccccsssssscsccccseseususesceccssscassueasceccesseausuenescsses 27 4 4 CONFIGURATION PROGRAM ccccecccccccssssesesccccccccsssssssceccsccessuusassceccescessuuuaessceccssesuuenens 27 AAS Transparent WOU a O 29 AAD Controlled Made And it a ai 29 4 43 Other Parameters dieuna Aa lia 31 4 5 HAYES COMMANDS tii ii its 34 4 6 CONFIGURATION EXAMPLES ccccssssesseccccccccssesesssccccseseususesececcsessuseseassceccsseseueuenenseses 39 4 7 SWI CH CONFIGURATION scce2isccitesdzcihs aces ta 42 CHAPTER FIVE SPECIFICATIONS ccccccscssssssvssssccccccccecessscsccsccsccscesescscscccsceeees 44 CHAPTER SIX TROUBLESHOOTING 2 0 0 0 ccccssssscccccccccccecesescsccccceccscesescsccccescesees 46 6 1 DIAGNOSTICS CHAR Tiida ia A iia 46 6 2 TESTEUNCTONS aii 46 62E Radio Tests ATETA A EAS NA ASA 46 6 2 2 Bit Error Rate Test BER td aida 48 6 2 3 O line IASNOSES 1 aenn a a n a a aa aaa 48 CHAPTER SEVEN WARRANTY SERVICE sccccsccccccccssssscsccccccccesessscscccceeees 49 APPENDIX A HAYES COMMANDS esessssssosoesossssssosocsosssssosoossoossssosoessosssssosossssssos 50 Version 1 XYR 300D
10. 5 will respond with CONNECT to its host and will also automatically go to operating mode If 8 does not reply 5 will make up to 5 attempts to connect and will then respond to its host with NO CARRIER If 8 is already connected to another module then it will respond to 5 with a busy message and 5 will respond to its host with BUSY or NO CARRIER this response can be configured under responses If there are repeater modules then the ATD command will have the form ATDrl r2 13 r4 r5 d where d is the destination address and r is a repeater address rl is the repeater closest to the master unit For example ATD2 3 10 will try to connect to 10 via repeaters 2 and 3 Up to 5 repeater addresses may be used A repeater can already be connected to another module it can still act as a repeater for another link Once a connection is made DCD set any data sent will be acknowledged by the other module The connection will be broken DCD reset if an ACK is not received within 5 attempts to transmit a message Either host may disconnect the link using the ATH command or by using the DTR signal on the RS232 port refer to the AT amp D command in Appendix 1 When the link is disconnected for any reason the DCD output at each module is reset and each module will respond to its host with NO CARRIER each module will revert to command mode Fast operation mode In fast operation mode the master and slave mo
11. CPU failure JOKLEDON O LED ON Continuously e Normal Operation Ce a E TX LED ON o briefly Radio RX LED ON GREEN flash e Radio receiving data RED flash e Weak radio signal lt 95dBm Serial RX LED ON GREEN flash e Serial Port Receiving RED flash e Input buffer almost full Serial TX LED ON Flashes briefly e Serial port transmitting DCD LED ON Continuously e In transparent mode always on e In controlled mode a radio link has been established The green OK LED on the front panel indicates correct operation of the unit This LED extinguishes on failure as described above When the OK LED extinguishes shutdown state is indicated On processor failure or on failure during startup diagnostics the unit shuts down and remains in shutdown until the fault is rectified 6 2 Test Functions 6 2 1 Radio Testing AT amp Tx To aid in the checking and setup of the XYR 300D Wireless Serial unit diagnostic functions are provided using the standard Hayes AT commands To perform the tests you will need a terminal PC hyper terminal set up to match the module same character type and serial speed The table below outlines the functions of the various tests AT amp T Self Tests Allows in field diagnostics and factory testing STO Transmit Bit Error Rate Test Generates pseudo random data and sends out radio amp T1 Receive Bit Error Rate Test Receives data from T0 module and displays BER Statistics amp T2 Transmit amp
12. Enable Local Echo Disconnect link in controlled mode Hang up control Module Identity Firmware version returns the software version number Go to on line operating mode Quiet mode Suppress enable response codes see details of Response Codes later in this section Enable response codes Disable response codes Read value from S Register n see description of S registers later in this section XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 ATSn xx ATV VO Vie ATX X00 X1 X2 X3 ATZ AT amp Bxx amp DO0e amp D1 amp D2 amp D3 AT amp E amp E Ve SEl AT amp F Version 1 5 1 08 Set value of S Register n to xx Verbal Numeric Response Codes Numeric response codes Verbose response codes Extended Response Codes Allows more detailed response codes including connection speed Basic response codes only X0 Connection Baud rate codes CONNECT 19200 CONNECT 57600 X1 BUSY Message X2 RINGING Message Reset the module and re load the configuration stored in non volatile memory Character Type Data bits Stop bits Parity xx is formed by adding the values below 1 Stop Bit Qe No Parity 2 Stop Bits 4 Zero Parity Parity bit always zero 7 Data Bits 8 Odd Parity 8 Data Bits 12 Even Parity Data Carrier Detect DCD Control DCD is always on in transparent mode DCD Always on DCD High when connected Low otherwise DCD Always on Pulses low on D
13. Serial Radio Modem User s Manual Version 1 5 1 08 During normal operation if there has been no radio activity for a period called the link check period the master unit will transmit the connect message to check the radio path The link check period is a time configured by the user Successful Communications Source Module Destination Module e Serial data is received e Serial RX LED flashes e Listen to ensure channel is clear Receive message e If clear transmit message Radio RX LED flashes e Radio TX LED flashes Check system and destination address If OK check error check If message okay transmit back an ACK message e Radio RX LED flashes Radio TX LED flashes e Acknowledgment received okay e Serial data is output communication complete e Serial TX LED flashes Unsuccessful Communications Source Module Destination Module e Listen to ensure channel is clear e If clear transmit message Receives message e TX LED flashes RX LED flashes Check system and destination address If incorrect transmit no message and no serial output No ACK received Retry up to four times If no ACK message received after five attempts NO CARRIER message sent to host DCD signal and DCD LED reset The time taken to transmit a message is HEADER DATA lead in system unit repeater dest zero data error check 30msec address addr add
14. Wireless Serial Radio Modem User s Manual vii This page left blank intentionally viii XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 Chapter One INTRODUCTION 1 1 General The XYR 300D Wireless Serial radio modem module has been designed to provide flexible and reliable radio modem functions at an economical price Radio modems transmit serial data over a long distance via radio The serial data is not changed the output data is the same as the input data Although the XYR 300D Wireless Serial is intended to be simple in its application it also provides many sophisticated features This manual should be read carefully to ensure that the modules are configured and installed to give reliable performance Each XYR 300D Wireless Serial module will connect to a host device by RS232 or RS485 serial connection Examples of host devices are PLC s data loggers intelligent transducers and computers The XYR 300D Wireless Serial unit can receive data from the host device and transmit this data by radio to another or several XYR 300D Wireless Serial module The other module will recreate the serial data and output it as either a RS232 or RS485 serial signal The XYR 300D Wireless Serial unit provides two way communications each module can accept serial data and also output serial data The XYR 300D Wireless Serial module includes power supply microprocessor controller serial input output circuits and a 900MHz frequency
15. a two station installation with both modules using Yagi antennas horizontal polarisation is recommended If there are more than two stations transmitting to a common station then the Yagi antennas should have vertical polarisation and the common or central station should have a collinear non directional antenna Also note that Yagi antennas normally have a drain hole on the folded element the drain hole should be located on the bottom of the installed antenna Antenna installed with drain holes down Coax feed looped 8 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 2 3 Power Supply The XYR 300D Wireless Serial module is powered by a 10 30VDC or 13 24VAC supply The power supply should be rated at 1 Amp and be CSA Certified Class 2 For DC supplies the negative side of the supply is connected to COM and may be 10 30 connected to ground The supply negative is VDC connected to the GND terminal internally The positive side of the supply must_not be connected to earth The DC supply may be a XYR 300D floating supply or negatively grounded The power requirements of the XYR 300D Wireless Serial units is 80mA at 12VDC or VAC 50mA at 24VDC The power requirements in low power mode is 20mA at 12VDC XYR 300D 13 24 E 2 4 Serial Connections 2 4 1 RS232 Serial Port The serial port is a 9 pin DB9 female and provides for connection to a host device as well
16. as a PC terminal for configuration field testing and for factory testing This port is internally shared with the RS485 ensure that the RS485 is disconnected before attempting to use the RS232 port Communication is via standard RS232 signals The XYR 300D Wireless Serial is configured as DCE equipment with the pinout detailed below AN AN ATN ATN 2 2 2 2 RD RD RD RD 3 3 3o X 3 D 5 TD 1D E 5 1D SC fF 4 SC SG jS 4 SC RTS ES a RIS RTS fg al RIS CTS 5 CTS CTS E DSR 7 DSR DSR oar DSR DTR J DTR DTR DIR DCD DCD DCD 4 DCD Gz J eer ae XYR 300D DTE HOST XYR 300D DCE HOST DB9 DB9 DB9 DB9 MALE FEMALE MALE MALE Hardware handshaking using the CTS RTS lines is provided The CTS RTS lines may be used to reflect the status of the local unit s input buffer or may be configured to reflect the status of CTS RTS lines at the remote site The XYR 300D Wireless Serial does not support XON XOFF Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 9 5 1 08 Example cable drawings for connection to a DTE host a PC or another DCE host or modem are detailed above DB9 Connector Pinout EE Direction Function Data carrier detect on when link is established in controlled mode on always in transparent mode e Data Serial Data Output n Receive Data Serial Data Input Data Terminal Ready DTR can be configured to initiate low
17. be configured by the user to recognize the following types of characters 7 or 8 data bits even or odd or no parity 1 or 2 stop bits Most applications will require the character type to be the same at each XYR 300D Wireless Serial modem in the system Nevertheless the character type may be configured to be different at different XYR 300D Wireless Serial modems Data is transmitted by radio as an eight bit byte without stop or start bits If the input data is 7 data bits then the byte transmitted by radio comprises the 7 bits plus a zero bit Input characters with 8 bits are transmitted as just the 8 data bits with no parity Because the data is transmitted without parity the user may configure CRC error checking to be added to each transmitted data packet Data is output at the destination module based on the character type configured at that module that is the start stop bits and parity is added to the radio data Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 13 5 1 08 3 2 2 Serial Data Rate The communications baud rates supported on both the RS232 serial port and the RS485 serial port are 1200 2400 4800 9600 14400 19200 28800 31250 38400 57600 76800 and 115200 baud the user selects one of these rates during the configuration of the modem 3 2 3 Radio Data Rate The data is transmitted by radio as direct modulated synchronous data at 19200 57600 or 115200 bits second The user must configure the radio data
18. hopping spread spectrum radio transceiver no external electronics are required The XYR 300D Wireless Serial radio frequency has been selected to meet the requirements of unlicensed operation for remote monitoring and control of equipment That is a radio licence is not required for the XYR 300D Wireless Serial modules in many countries See Chapter Five Specifications for details The units are configured from a PC using a free ware configuration package or from a PC terminal using Hayes commands RS232 is an electrical standard format for a full duplex point to point serial connection RS485 is an electrical standard format for a half duplex multidrop serial connection Up to 32 devices can communicate on a common RS485 serial bus Each XYR 300D Wireless Serial unit can only connect to one serial signal either RS232 or RS485 However different modules in the same system can connect to different types of serial signals For example RS232 data from one host device can be transmitted to a remote XYR 300D Wireless Serial unit and output as RS485 data to another host device The XYR 300D Wireless Serial has been designed to be flexible enough to cover a wide range of applications The user is able to configure many different parameters such that the XYR 300D Wireless Serial unit will connect reliably to different types of host devices Before the radio modem can be used these parameters must be configured Some of these parameters are
19. if a character is entered Ignore characters entered while attempting to make a connection If a key is hit or a character input while attempting to connect abort the connection attempt and return to command mode Set module s System Address Range 0 255 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 AT amp T STO T 1 amp T2 amp T3 AT amp V amp V0 SV 1 AT amp U AT amp W AT amp Z AT T S Registers Self Tests Allows in field diagnostics and factory testing Transmit Bit Error Rate Test Generates pseudo random data and sends out radio Receive Bit Error Rate Test Receives data from amp TO module and records BER statistics Transmit amp Receive BER Test Used with a second module configured as a transparent repeater RSSI Measurement Monitors the received signal strength and displays in dBm View Current Configuration List the value of all settings as well as S Registers Same as AT amp V Only show settings that are different from the defaults Set module s Unit Address Range 0 127 Default 1 Write Current Configuration to non volatile storage Stored Numbers Up to 4 destination addresses may be stored Format AT amp Zx nn nn nn nn x 0 to 7 nn 1 to 127 AT amp ZO is used for auto connect address Inactivity Timeout Units Seconds Value 0 255 Default 0 disable If there is no radio activity in controlled mode within this time t
20. is configurable between 10 and 530 bytes The data consists of a sequence of 8 bit bytes Start stop and parity bits are not transmitted but they are re generated at the receiving unit if configured A transmit delay time and a receive delay time may also be configured These parameters may be used to fine tune and give priority to different XYR 300D Wireless Serial units in a system e After each message is transmitted a XYR 300D Wireless Serial unit will not transmit another message during the transmit delay time This could be used to allow a reply message to be received before the next message is sent This delay is a different delay to the delay introduces by the XYR 300D Wireless Serial if the serial data rate is less than the radio data rate e After a message is received a message will not be transmitted during the receive delay time This could be used to delay a reply message until other messages have been sent 14 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 3 3 Addressing A XYR 300D Wireless Serial network comprises modules with the same system address Only modules with the same system address will communicate with each other This feature allows more than one system to operate in the same area on the same radio channel We recommend that you select a random number for the system address In transparent mode each module is also configured with a group address A system may compri
21. modules in the same system Serial data rate can be selected between 1200 and 115 200 baud If you select a rate which is slower than the radio rate the XYR 300D Wireless Serial will automatically set transmission delay parameters in registers S18 and S19 refer section 3 8 To disable this feature deselect the PLC Mode box Then there will be no delay data bytes will be transmitted as soon as they appear in the input buffer The number of Data Bits can be selected as 7 or 8 The number of stop bits can be 1 or 2 Parity can be none even or odd Flow Control Settings Radio Serial Advanced S Reg Baud Rate 9600 y Data Bits ea lv PLC Mode Stop Bits DE Parity None v Flow Control AS 485 v Flow control affects the use of the CTS and RTS signals on the RS232 port These signals can be used to prevent overflow of the input buffer or output buffer of the XYR 300D Wireless Serial The settings should be selected to match the host device The options for this setting are None The RTS signal from the host is ignored and the XYR 300D Wireless Serial sets the CTS signal always on CTS RTS input buffer flow control the XYR 300D Wireless Serial will reset the CTS signal when its input buffer is full presently there is no flow control on the output side if the host resets the RTS signal the XYR 300D Wireless Serial will still output data RS 485
22. power mode or to force a link disconnection hang up in controlled mode D E a aa T a om reno m SCA trv ow onl soigwabe RI Ring indicator indicates another module is attempting to connect in controlled mode 2 4 2 RS485 Serial Port The RS485 port provides for communication between the XYR 300D Wireless Serial unit and its host device using a multi drop cable Up to 32 devices may be connected in each multi drop network Note that the RS485 port is shared internally with the RS232 port make sure that the RS232 port is disconnected before using the RS485 port As the RS485 communication medium is shared only one of the units on the RS485 cable may send data at any one time Thus communication protocols based on the RS 485 standard require some type of arbitration RS485 is a balanced differential standard but it is recommended that shielded twisted pair cable be used to interconnect modules to reduce potential RFI It is important to maintain the polarity of the two RS485 wires An RS485 network should be wired as indicated in the diagram below and terminated at each end of the network with a 120 ohm resistor On board 120 ohm resistors are provided and may be engaged by operating the single DIP switch in the end plate next to the RS485 terminals The DIP switch should be in the 1 or on position to connect the resistor If the module is not at one end of the RS485 cable the switch should be off 10 XYR 300D Wir
23. radio hops between channels determine the average value For reliable operation that is a bit error rate of more than 1 in 300 the transmitted signal should be better than the following margins Radio Baud Rate Margin above Noise Minimum Value dBm 19200 10 95 57600 15 90 115200 20 85 For example for transmissions at 19200 baud the radio signal should be at least 10dB better than the background noise level or better than 95dBm if the noise level is less than 105dBm If the background noise is 100dBm then you need 90dBm of signal for reliable operation If the background noise is 120dBm then you need 95dBm of signal for reliable operation When using directional antennas YAGI antennas this feature may be used to align the antenna in the correct direction by selecting the peak signal when moving the antenna Setup the remote unit to transmit and observe the signal indication while adjusting the orientation of the antenna A peak in signal level indicates optimum orientation of the antenna Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 47 5 1 08 6 2 2 Bit Error Rate Test BER BER may be tested in one direction by typing AT amp TO BER master at the sending unit and typing AT amp T1 BER slave at the receiving unit The sending unit will repeatedly send pseudo random frames and the receiving unit will check these frames for errors If a terminal is connected to the sending unit the pseudo ran
24. rate at each XYR 300D Wireless Serial module The configured radio data rates must be the same for each module in a system At 19200 and 57600 bits sec the XYR 300D Wireless Serial adds forward error correction in the transmitted data This is added automatically and is different to the configurable CRC error check The radio range at 19200 baud is better than 57600 or 115200 The expected range at 57600 is 60 of maximum and at 115200 is 30 The radio message includes the following A 30 msec leading sequence of alternating 1 s and 0 s provides the receiving unit with time to capture and lock onto the incoming signal This time is reduced to 5msec for the fast controlled mode option point to point only A system address is superimposed on each message to provide discrimination between different XYR 300D Wireless Serial systems on the same radio channel Each XYR 300D Wireless Serial unit in the same system must be configured with the same system address refer Section 4 Configuration Although other XYR 300D Wireless Serial modules may hear the radio transmissions because they have a different system address the radio transmission is ignored and no serial data is output In transparent mode a group address is included and in controlled mode unit addressing is included An error check 16 bit CRC may be configured by the user Up to 530 bytes of data may be transmitted in a message the maximum message size
25. second group address inserted If a repeater receives a message with the correct group address but with the second system address corresponding to the configured unit address then the data is not output to the serial port but the message is re transmitted but with the first or normal group address inserted 4 3 Default Configuration The default configuration of the XYR 300D Wireless Serial is transparent mode no error check no CTS RTS flow control serial rate 9600 radio rate 19200 character type 8 n 1 The system address will be set in the factory according to the module serial number The module may be forced to factory default setting by using any of the three configuration methods 4 4 Configuration Program The configuration program is Cfg XYR 300D This program will run under Windows 95 98 NT or 2000 The program may be obtained from the Product CD which came with your purchase or can be downloaded from our web page When you use this program you create a configuration in the PC and then load or program the configuration into the XYR 300D Wireless Serial module You can also read the configuration from a module to edit The opening screen will show default settings with a random number for the system address Reading and Configuring a module You will need a connection cable between the PC and the XYR 300D Wireless Serial The cable should have straight through connections as per section 2 4 1 of this manual If your PC
26. signal If the master unit does not receive the acknowledgment the DCD output will reset When the connection is made DCD set the XYR 300D Wireless Serial units can transmit data to each other Once the communications channel has been established the XYR 300D Wireless Serial unit will accept input data and send radio messages with data When a XYR 300D Wireless Serial unit receives a radio message it will check the system address and destination address and also the error check optional If these are correct it will return a ACK acknowledgment message to the source unit If the system address or destination address is not correct or if the error check is not correct then no return message is sent Establishing a Communications Link Master Unit Slave Unit Listen to ensure channel is clear If clear transmit connect Receives message message Radio RX LED flashes Padio TADE D lashes Check system and destination address If OK se DCD LED and output If message OK transmit back an ACK message Radio RX LED flashes Radio TX LED flashes Acknowledgment received okay communication link established Set DCD LED and output If the source unit does not receive an ACK message it will re transmit the same message It will attempt to transmit the message up to five times If the unit still does not receive an ACK message after five attempts it will reset the DCD LED and reset the DCD output 18 XYR 300D Wireless
27. symbol appears next to required information in the manual WARNING Risk of electrical shock Potential shock hazard where HAZARDOUS LIVE voltages greater than 30 Vrms 42 4 Vpeak or 60 VDC may be accessible ESD HAZARD Danger of an electro static discharge to which equipment may be sensitive Observe precautions for handling electrostatic sensitive devices Protective Earth PE terminal Provided for connection of the protective earth green or green yellow supply system conductor Functional earth terminal Used for non safety purposes such as noise immunity improvement NOTE This connection shall be bonded to Protective Earth at the source of supply in accordance with national local electrical code requirements Earth Ground Functional earth connection NOTE This connection shall be bonded to Protective Earth at the source of supply in accordance with national and local electrical code requirements Chassis Ground Identifies a connection to the chassis or frame of the equipment shall be bonded to Protective Earth at the source of supply in accordance with national and local electrical code requirements Version 1 5 1 08 XYR 300D Wireless Serial Radio Modem User s Manual CONTENTS CHAPTER ONE INTRODUCTION aaa 1 1 1 A cade ce Gers ak eae racine toes ae aR vad soe Seino eae Ried Pada gaan odes 1 1 2 TRANSPARENT MODE te A ias 2 1 3 CONTROLLEDMODE a dabas 3 1 4 REPEATER UNITS ceba 4 CHAPTER TWO INSTALLATION a 5 2 1 GENER
28. the XYR 300D Wireless Serial unit The XYR 300D Wireless Serial unit will then operate normally until the DTR signal is reset by the host device 20 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 3 6 3 Single Connect Controlled Mode Single connect is similar to a dial up modem In this mode the module will only make one attempt to connect to a destination address A host device will issue a connect AT command and the module will send a connect message to the destination address Ifthe destination module responds then the link is connected and the DCD status is set If the destination module does not respond then the link is not established and no data can be transferred The module will not attempt to reconnect again until it receives another connect command from its host The link is normally disconnected by the host issuing a disconnect command In this mode it is normal for a host to connect and disconnect to several slave modules using AT commands A common example is a PC polling several analyzers or dataloggers The PC connects to a remote station one at a time transfers data disconnects and connects to the next station Up to five repeater addresses may be configured as part of the remote address That is up to 5 intermediate modules can act as repeaters between the master and slave modules The RS232 DTR signal can be configured to act as a disconnect signal If so configured the DTR signal will force a hang
29. them to the host device If a unit with error check configured receives a message without an error check it will treat the last two data bytes as the error check the error check will always be incorrect and no data will be output Error check is strongly recommended for controlled mode operation If error check is not configured then a XYR 300D Wireless Serial unit will transmit an acknowledgment message ACK whenever it receives a radio message without checking for errors If error check is configured the unit will only transmit an ACK message if the error check is correct If it is incorrect an error message NACK is returned to the source address 3 8 Serial Radio Rates The XYR 300D Wireless Serial will operate most efficiently when the serial and radio data are configured to the same value If the serial data rate is less than the radio rate there is a risk that the radio will empty the input buffer to quickly resulting in a single input message being broken into more than one output messages Many host protocols such as those used by PLC s will not accept a message being broken To avoid this occurring the XYR 300D Wireless Serial will automatically delay the radio transmission starting This is called PLC Mode The radio will not start transmitting until a certain number of bytes have been input into the input buffer The XYR 300D Wireless Serial calculates the number of starting bytes depending on the values of the con
30. up DCD reset if the host device resets the DTR signal 3 6 4 Fast Operation Controlled Mode This configuration does not allow the use of repeater addresses In fast operation mode the master unit continually communicates with the slave such that any data transfer can be achieved with a small lead in approx 5 msec The operation is similar to single connect mode 3 6 5 CTS RTS Flow Control Flow control is a configurable parameter On the RS232 port if CTS RTS is enabled the CTS signal will be active when the input data buffer is not full Note that CTS RTS is disabled in the default configuration if this feature is required it must be enabled refer Configuration Chapter 4 If CTS RTS is not enabled then data will be lost after the input buffer 2KB is full 3 6 6 Intermediate Repeaters Where intermediate repeaters are configured each repeater will re transmit the message onto the next address When the destination address is reached the destination module will return an acknowledgment ACK with the reverse address structure as the received message If error checking is selected then the destination module will only return a ACK if the error check is valid If the error check is not valid then no ACK message is returned If the error checking function is not selected then the destination module will return an ACK every time it receives a message Each repeater will re transmit the ACK message until it is received by the sou
31. way radios or wireless telephones There can be interference from other devices on the same band As the hopping sequence used by the XYR 300D Wireless Serial is different to other devices on this band the probability of two devices using the same channel is Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 23 5 1 08 small and if this does occur the probability of sharing the same channel on a re transmission is extremely small There is a higher chance of interference from other XYR 300D Wireless Serial systems Because XYR 300D Wireless Serial are designed to operate in a peer to peer network without a master module directing the communications each XYR 300D Wireless Serial will scan the radio band looking for other XYR 300D Wireless Serial messages The XYR 300D Wireless Serial radio message has a unique signature to separate it from radio messages from other devices A XYR 300D Wireless Serial in one system will hear other XYR 300D Wireless Serial systems and this can be a cause of interference In countries which allow the full 902 928MHz band such as USA and Canada there are eight hopping sequences and the first four do not use the same frequency channels as the last four this can give isolation between two systems That is a system with hopping sequence 1 will hear messages from another system using hopping sequence 3 but will not if the other system used hopping sequence 5 The hopping sequenc
32. 0 Set the character type to 7 1 2 even Set the operating mode to Transparent Repeater Exit and save the configuration Right hand Unit Configuration Set the system address to the same random number Set the group address Set the serial data rate to 9600 Set the radio data rate to 19200 ATC4 not necessary default AT amp B13 AT MI14 L1 AT amp W ATO AT amp S138 AT amp G2 ATC4 not necessary default Set the character type to 7 1 2 even AT8B13 Exit and save the configuration AT amp W ATO 40 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 Controlled Mode Source Repeater Repeater Destination Apart from being a repeater in the 1 3 link 100 is also in a separate link to 101 Auto connect link with repeaters Assume that default settings are used for data rates and character types The only configuration required is addressing Module 1 Set the module to factory default settings AT amp F Set the system address to a random number AT amp S217 Set the unit address to 1 AT amp UI1 Set the autodial address to 3 via 2 100 AT amp Z0 2 100 3 Set the operating mode to controlled mode auto connect master AT amp M2 amp L2 Exit and save the configuration AT amp W ATO Note that module 1 is the master unit in this link Module 2 Set the module to factory default settings AT amp F Set the system address to the same random number AT amp S217 Set the unit address to 2 AT amp U2
33. 0D Wireless Serial Radio Modem User s Manual 33 5 1 08 DCD Control The DCD signal on the RS232 port can be used to give an indication of communications link status in controlled mode Note that the link is always connected in transparent mode Always On the XYR 300D Wireless Serial sets the DCD to be always on Only High When Connected the DCD signal will be on when the link is connected and off when the link is reset Pulse Low on Disconnect the DCD signal will be normally on but will switch off momentarily for 0 1 sec when the link is reset Advanced Settings These settings may be adjusted if the host device is using AT commands refer to Appendix A for an explanation of the different parameters S Registers These are parameter registers settable by AT commands They do not normally need to be changed Refer to Appendix A for an explanation of these parameters 4 5 Hayes Commands The XYR 300D Wireless Serial unit may be configured by a host device using Hayes AT commands Configuration may be done off line by a user with a PC terminal as the host device or it can be done automatically on line by a host device such as PLC or SCADA The AT commands are ASCII messages designed for use with conventional telephone modems Before a XYR 300D Wireless Serial unit will accept Hayes commands it must be in command mode A host device may force the unit to command mode by sending a seque
34. 6dB net gain antenna configuration permitted 4W ERP Australia NZ 12 km unity gain antenna configuration 1W ERP Longer distances can be achieved if one antenna is mounted on top of a hill To achieve the maximum transmission distance the antennas should be raised above intermediate obstructions so the radio path is true line of sight Because of the curvature of the earth the antennas will need to be elevated at least 15 feet 5 metres above ground for paths greater than 3 miles 5 km The modules will operate reliably with some obstruction of the radio path although the reliable distance will be reduced Obstructions which are close to either antenna will have more of a blocking affect than obstructions in the middle of the radio path For example a group of trees around the antenna is a larger obstruction than a group of trees further away from the antenna The XYR 300X modules provide a test feature which displays the radio signal strength Line of sight paths re only necessary to obtain the maximum range Obstructions will reduce the range however may not prevent a reliable path A larger amount of obstruction can be Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 5 5 1 08 tolerated for shorter distances For very short distances it is possible to mount the antennas inside buildings An obstructed path requires testing to determine if the path will be reliable refer the section 6 of this manual Where it is n
35. AD il 5 Dio ANTENNA INSTALLATION ic 5 2 2 1 Dipole and Collinear antemano 7 2225 Xag antennas eenaa eea a E a Toasts A E A A R 8 2 3 POWER SUPPLY A e E a a a a a aa 9 2 4 SERIAL CONNECTIONS rt a ug aac cance a e a be at a a 9 2 AAR S232 A E E A AA 9 242 RS485 Serial Portner h i a isa 10 CHAPTER THREE OPERATION okete senseo sviste seoses estones babes s srate Seios perserta Ses 12 3 1 POWER UP AND NORMAL OPERATION 12 3 2 SERTA AND RADIO DATA et ann a do to RE Y 12 O Character Typecast a E A EAA EE AEAN REAN Goria Eit 13 IAA Sena A II II e A SS 14 o Radio Data ROG eis ha Satie ian adit ar O a tat E O E cada eh eta tn 14 33 ADDRESSING anara rent acute ate RSA tas asec E R es eae ig Sates 15 3 4 TRANSPARENT MODE e da nd E ae 15 3 5 TRANSPARENT MODE REPEATERS sxjatsatacy zossaeatecdtandtvatandenasentquarsdansesaabaeeetnasaudenisornyeneneds 16 3 6 CONTROLLED MODE ee ara a 18 3 6 1 Auto Connect Controlled Mode ooooccnooccconoccconononononononanononononnnonononnncnnnnnnnnnnnonnnnnnnnss 20 3 6 2 Low Power Auto Connect Mode 20 3 6 3 Single Connect Controlled Mod a an 21 3 6 4 Fast Operation Controlled Mode ceiricitncn sist idas 21 3 6 5 CTS RTS Flow Control AAA A sb adehanaanets 21 3 6 6 htermediate Repeaters ornen moii Ad a AAA 21 3 7 WHAT OPERATING MODE TO USE tance E a a R 22 3 7 1 Transparent or Controlled Modera N 22 A o A OTE Br 22 3 8 BERTAR RADIO RATES deeri a a a a a a R E NE 23 3 9 RADIO INTERFERENCE aa 23 3 10 OPERATING PROBLEMS iaa
36. Address 1 When X transmits a message repeater A will receive the message on group address 2 Repeater A will not output the data as the group address is not the repeater s first group address Repeater A will re transmit on group address 1 to modules S and T But repeater B will not accept the re transmitted message on group address 1 If repeater B is able to hear the original message from module X on group address 2 then it will re transmit it on But if it cannot then the message will not be transmitted on to module Z Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 17 5 1 08 3 6 Controlled Mode In controlled mode data is only transferred between two modules that is a point to point link One of the modules is configured as a master unit and the other as a slave unit There can also be up to five intermediate repeaters in the link Each XYR 300D Wireless Serial unit is configured with a unit address only the unit with an address matching the destination address of the radio message will process the message and output the serial data To establish a link the master will transmit a special connect message This initial message will not include any data If the slave unit receives the initial message and is not already connected to another XYR 300D Wireless Serial unit it will return an acknowledgment message Both units will activate their DCD LED and also activate their DCD
37. Comment value see below S19 0 255 Input buffer delay override Override time in msec to override S18 delay see below S20 0 255 Default system address 21 0 255 Radio message signature 0 1 2 o0r3 lead in tones default 1 set to 0 for old systems set to 2 or 3 for new systems suffering interference from other XYR 300X systems S18 is calculated as S18 MP SR 10 MP RB TD 2 Rounded up SB is serial baud Rate in bits per second SR is serial data Rate in bytes per second usually 1 10 of SB RB is radio baud Rate in bits per second TD is transmit delay 0 028 for transparent controlled mode 0 for fast controlled mode MP is the maximum packet size to be transferred NB is the maximum number of bit times delay allowed between characters in the protocol S19 is calculated as S19 1000 NB SB Rounded up Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 5 1 08 55 Response Codes Response codes display the status of the module in response to user commands The response code displayed depends on the ATV setting the ATX setting and the ATQ setting ATVO selects numeric response codes ATV1 selects verbal response codes The ATXn command selects extended response codes ATQO disables all response messages ATQ1 enables response messages The following table describes the messages A e symbol indicates that messages is displayed for the corresponding ATX setting
38. D Wireless Serial module Refer to Section 2 3 Power Supply Before installing a new system it is preferable to bench test the complete system Configuration problems are easier to recognize when the system units are adjacent Following installation the most common problem is poor communications caused by incorrectly installed antennas or radio interference on the same channel or the radio path being inadequate If the radio path is a problem ie path too long or obstructions in the way then higher performance antennas or a higher mounting point for the antenna may rectify the problem Alternately use an intermediate XYR 300D Wireless Serial Module as a repeater The foldout sheet XYR 300D Wireless Serial Installation Guide provides an installation drawing appropriate to most applications Further information is detailed below Each XYR 300D Wireless Serial module should be effectively earthed via the GND terminal on the XYR 300D Wireless Serial module this is to ensure that the surge protection circuits inside the XYR 300D Wireless Serial module are effective 2 2 Antenna Installation The XYR 300D Wireless Serial module will operate reliably over large distances The distance which may be reliably achieved will vary with each application depending on the type and location of antennas the degree of radio interference and obstructions such as hills or trees to the radio path Typical reliable distances are USA Canada 15 miles
39. Honeywell XYR 300D Wireless Serial Radio Modem User s Manual 34 XY 25 25 Version 1 5 1 08 Notices and Trademarks Copyright 2008 by Honeywell International Inc Version 2 May 1 2008 While this information is presented in good faith and believed to be accurate Honeywell disclaims the implied warranties of merchantability and fitness for a particular purpose and makes no express warranties except as may be stated in its written agreement with and for its customers In no event is Honeywell liable to anyone for any indirect special or consequential damages The information and specifications in this document are subject to change without notice Honeywell PlantScape Experion PKS and TotalPlant are registered trademarks of Honeywell International Inc Other brand or product names are trademarks of their respective owners Honeywell International Process Solutions 2500 West Union Hills Phoenix AZ 85027 1 800 343 0228 ii XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 About This Document This document describes preparation operation and maintenance of the XYR 300D Wireless I O extensions Mounting installation and wiring are covered in other documents Honeywell does not recommend using devices for critical control where there is a single point of failure or where single points of failure result in unsafe conditions XYR3000 is targeted at open loop control supervisory control and controls t
40. arge radio messages are being transmitted reduce the maximum message length and transmit the data in more messages of smaller size Another common problem is the response time of the host software Some hosts operate by sending a message from one end and require a response to that message within a certain time If this time is less than the turn around time of the radio modem then the system will not operate It may be possible to lengthen the response time in the host software Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 25 5 1 08 Chapter Four CONFIGURATION 4 1 Before Configuring Configuration comprises selecting parameter values for the operation of the XYR 300D Wireless Serial unit Four pre set configurations may be achieved using the four DIP switches These configurations cover most applications refer section 4 7 Before you start configuration parameter settings must be decided The main parameters are e Addressing system address group address unit address e Character type You need to find out the character type of the host devices connected to the XYR 300D Wireless Serial units The most common character type is 8 data bits no parity 1 start bit and 1 stop bit e Serial Data Rate You need to find out the serial data rate used by the host devices It is possible to have different serial rates configured at different modules in the same system e Radio Data Rate You need to decide what radio data rat
41. cation Advanced Help BS b sO 2 Operating Mode Transparent C Transparent Mode C Transparent Repeater C Auto Connect Slave C Single Connect Serial Communications Controlled Mode Options General Advanced Stored Add System Address 136 Unit Address 1 Fast Operation Repeaters will not be used M Low Power Mode If you select any of the controlled mode options you will be asked to select a unit address for the module This should be a unique address for that module 1 127 Auto Connect Master In auto connect mode the master will automatically attempt to connect to the slave address Once connected the link can transfer data in either direction with error checking acknowledgement messages and automatic re transmissions if necessary If the link connection Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 29 5 1 08 fails indicated by the DCD led then the master unit will automatically try to reconnect to the slave At the master unit you need to enter the address of the slave Select the Stored Add page and Dest1 The address of the slave is entered into Dest Add 1 and up to five repeater addresses may be entered Repeater modules may be configured in any controlled mode option but they must have the same system address The repeater addresses are entered in order from the master that is Rpt 1 is the first repeater after the mas
42. ck and link reset function Configuration of Flow Control CTS RTS flow control can be configured This may be desirable to ensure data is not lost if transmitting large amounts of data AT amp K amp KO default Flow Control Disabled CTS Always high Module ignores host s RTS Select for full duplex RS232 with no flow control amp K1 not used amp K2 not used amp K3 CTS RTS Flow Control CTS Reflects the state of the local buffer Module only transmits serial data when RTS is high amp K4 RS 485 Control flow control disabled Must be selected for RS 485 to work CTS is high CTS goes low when transmitting data RTS is ignored Configuration of Error checking Error checking is normally disabled for transparent mode and normally enabled for controlled mode The configurations for transparent and controlled modes above follows this convention However you are able to override this AT amp E CRC Error Checking SEO Disable CRC Error Checking default SEl Enable CRC Error Checking View Configuration The AT amp V command will output to the terminal a listing of all configuration settings AT amp V Show all settings including S registers amp V0 Same as AT8V amp V1 Only show settings that are different from the defaults 38 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 amp V10 Display the Stored Non volatile Configuration amp V11 Display the elements of the stored configuration which differ
43. ction Slave module AT amp E1 amp M2 amp L3 The module will start up in operating mode and will automatically accept any connect message addressed to it Low Power Mode Low power mode is normally used with auto connect controlled mode although it can also be used with other controlled modes Before you configure the unit for auto connect controlled mode enter AT amp D3 This allows the DTR signal on the RS232 port to control the module When the host resets signal low the DTR signal the module will disconnect the radio link and the module will revert to low power mode the module will switch off its radio receiver and microprocessor When the host activates the DTR signal the module will start up and attempt to connect to its slave address Controlled mode single connect 36 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 AT El1 M24L0 both master and slave module The module starts up in command mode and waits for a command from the host device An ATD command will initiate a connect command to another module HOST KYR 300D0 gt 2 ___ YR 300D HOST 5 8 For example ATD8 to module 5 will initiate a connect command to be sent to module 8 Module 5 will respond with RINGING to its host If 8 is not already connected to another module it will connect set DCD and respond to 5 Module 8 will respond to its host with CONNECT and will automatically go to operating mode Module
44. d link check time the master will send a connect message to check the communications link The connection will be broken if a communication failure occurs or if one of the hosts issues a disconnect AT command although this would be unusual for this mode When the master is disconnected it will continuously try to connect to its auto connect address Up to five repeater addresses may be configured as part of the auto connect address That is up to 5 intermediate modules can act as repeaters between the master and slave modules 3 6 2 Low Power Auto Connect Mode For special installations the XYR 300D Wireless Serial may be operated in a low power condition where it switches off its receiver power consumption is reduced to approx 30 of normal The low power condition will occur if the XYR 300D Wireless Serial is configured for auto connect mode AND if the low power mode feature is configured The DTR signal on the RS232 port will control switching between low power and normal operation When DTR is low the module will change to low power operation reset any connected link and switch off its receiver When DTR goes high the module will revert to normal operation and will auto connect to its slave address The use of this low power operation may be applicable in remote locations where there is a limited power supply such as solar panels In this situation the DTR signal from the host device is used to wake up
45. de Controlled mode is suitable for point to point links For multi point networks a master host device must control connecting and disconnecting to remote units It is possible to configure different units in the same system with different operating modes however the system will not operate A XYR 300D Wireless Serial unit configured in one mode will not process a message received from a unit in the alternate mode 3 7 2 Error Check Error checking may be configured in both transparent and controlled mode When the error check is configured two additional bytes are attached to the end of each message These bytes are used to detect any corruption of the data when it is received at another XYR 300D Wireless Serial unit When a unit with error check configured receives a radio message it will not output data until it has received the whole message and ensures that the error check is correct If the unit does not have error check configured then it will output data as it is received Hence operation of the units is faster if error check is not configured We recommend that units in the same system have the same error check configuration however it is possible for users to configure the units differently If a unit without error check configured 22 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 receives a message which includes an error check then the unit will treat the additional two bytes as data and output
46. dom data is displayed as it is transmitted If a terminal is connected to the receiving unit then the test results are displayed An example of the receiving unit s display is here Test Errors Extra Level TotErr TotMissed TotTest 109 0 0 77dBm 3 0 109 kbit Test the sequence number of the last received frame Errors the number of bit errors in the last received frame Extra any extra characters at the end of the frame negative numbers indicate frame dropped out early Level the RSSI level when the frame was received TotErr The total errors received during this test TotMissed The number of missed frames during this test TotTest The total number of bits sent in 1000 s Occasionally during testing the following may be displayed Test Errors Extra Level TotErr TotTest Bad Header This indicated that the header information has been corrupted Corrupted headers do not contribute to the bit errors which are calculated only on the 1 000 bit frame BER testing may also be performed in both directions simultaneously In this case a remote module is set up to Transparent mode repeater operation set Group address and Unit address both to 1 and the BER test is performed on the local module using the command AT amp T2 loopback Bit Error Test In this case the display is identical to the display on the BER slave unit above but the displayed bit errors are a total for the round trip so will be the sum of the bit errors i
47. dules continually exchange check messages to ensure fast operation The lead in time in fast operation mode is only 5 msec compared to 30 msec in normal modes Note that repeaters cannot be used in fast operation mode Either auto connect or single connect operation can be used Use M3 in the AT command instead of M2 Auto connect master AT amp M3 amp L2 amp E1 Auto connect slave AT amp M3 amp L3 amp El Single connect AT amp M3 amp LO amp E1 Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 37 5 1 08 Controlled Mode Link Check and Reset times If the master module has not sent or received a radio message within a preset time it will send a check message to make sure that the link is still active If it does not receive a response from the slave unit it will disconnect the link and reset DCD The check time can be configured using the ATS6 command For example ATS6 10 sets the check time to 10 sec If the slave module does not receive a radio message within the link reset time it will disconnect the link and reset its DCD The link reset time can be configured using the AT T command For example AT T12 sets the link reset time to 12 seconds The link reset time should be larger than the link check time Note that any module can be master or slave the master module for a specific link is the module which initiated the connection by ATD The default for both of these parameters is 0 which disables the link che
48. e end of the message For example a message with 20 bytes of data transmitted at 19200 bits sec will begin to be output approx 32msec after the data is input if there is no error checking or 44msec after the data is input if error checking is configured 3 5 Transparent Mode Repeaters A module can be configured as a transparent mode repeater In this mode the module will operate as a normal transparent mode module plus it will also re transmit any radio messages that it receives However it will change the group address in the re transmitted message The transparent mode repeater is configured with two group addresses When it receives a radio message with one of these group addresses it will re transmit the message using the other group address assuming that the system address is correct One of the group addresses will be its normal or first group address If a transparent mode repeater receives a message on its first group address it will output the data on its serial port and will also re transmit the message using its second group address That is the re transmitted message will now have the second group address Only XYR 300D Wireless Serial modules configured with the second group address will accept the re transmitted message If a transparent mode repeater receives a message on its second group address it will re transmit the message on its first group address but it will not output the data on its serial port Here is an
49. e is determined by the system address In countries which only allow half the band such as Australia and New Zealand it is not possible to separate systems in this way because the band is smaller and all hopping sequences use all channels available It is possible to separate systems by changing the message signature A XYR 300D Wireless Serial will not lock onto a message with a different signature and will ignore the message as RF noise There are four different message signatures available this is user configurable in register S21 refer section 4 of this manual This feature was introduced with firmware version 1 90 Earlier firmware versions only support a single fixed message signature The Firmware version may be read from the module using the configuration software provided with the module or by reading the serial number The firmware version is written in digits 5 through 7 of the serial number so a module with serial number 0804 187 9469 has firmware version 1 87 which has a single fixed message signature while serial number 0105 190 2345 has firmware version 1 90 with configurable message signatures Note If you are adding a new XYR 300D Wireless Serial to an existing system with older modules you will need to set configuration register S21 to 0 to make it compatible with the older modules 24 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 3 10 Operating Problems Most operatin
50. e you wish to use It does not have to be the same as the serial data rate Remember that the radio range for 115200 and 57600 bits sec will not be as good as that for 19200 We recommend that you use 19200 bits sec unless your application requires the faster data rate e Operating mode You need to decide which operating mode you wish to use Modes are transparent or controlled auto connect single connect low power mode error checked or no error check These modes are discussed in more detail in following sections The other configuration parameters do not need to be selected and are provided as a means of fine tuning the operation of the XYR 300D Wireless Serial units Configuration may be achieved by three different methods 1 Using a Windows configuration program run on a PC This is the most common way of configuring 2 Using Hayes AT commands This method can be performed manually by the user from a PC terminal for example Hyperterminal or can be performed automatically by the host device 3 Using the four DIP switches located in the end plate of the module It is not possible to select addressing using these switches so these switches are normally used as a quick way to try other configuration modes or data rates Note If you are adding a new XYR 300D Wireless Serial to an existing system with older modules you will need to set configuration register S21 to 0 to make it compatible with the older modules O
51. eless Serial Radio Modem User s Manual Version 1 5 1 08 1200 XYR 300D 1200 Version 1 5 1 08 XYR 300D Wireless Serial Radio Modem User s Manual RS485 CONNECTION USING TERMINATING RESISTOR Chapter Three OPERATION 3 1 Power up and Normal Operation When power is initially connected to the XYR 300D Wireless Serial module the module will perform internal diagnostics to check its functions The following table details the status of the indicating LEDs on the front panel under normal operating conditions On Normal Operation Radio RX GREEN flash Radio receiving data RED flash Weak radio signal Radio TX Radio Transmitting Serial RX GREEN flash Serial Port Receiving RED flash CTS low Serial TX GREEN flash Serial Port Transmitting DCD On Transparent mode always on Controlled mode on when communications link is established DCD Off Communications failure or link not established Other conditions indicating a fault are described in Chapter Six Troubleshooting 3 2 Serial and Radio Data The XYR 300D Wireless Serial module provides a full duplex RS232 serial port and half duplex RS485 serial port only one serial port can be used at any one time The radio communications is half duplex this means that the XYR 300D Wireless Serial operates at half duplex Many applications use full duplex RS232 communications but do not require full duplex the protocol used operates at half duplex and will operate wit
52. ess than 15 Ele Communication Advanced Help Low Power Mode If Low Power Mode is selected Operating Mode Controlled Mode Options gt the module will disconnect the ii General Advanced Stored Add communications link and shutdown C Transparent Mode ae Link Check Time its receiver circuits if the RS232 C Transparent Repeater les a DTR signal goes to a low or reset Controlled Inactivity Ti t state When the DTR signal aii T Auto Connect Master sec x becomes high or active then the module will revert to normal Auto Connect Slave operation Single Connect Controlled Mode Options 30 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 For each controlled mode there are some options In the Advanced page there are some timing parameters If you enter a Link Check Time then the master unit will send a check message if the check time has elapsed without any data transmissions For example if you enter 10 seconds then if there is a 10 second period without a data transmission then the master module will transmit a check message If the slave does not acknowledge then the master will transmit the check message up to five times If there is still no ACK then the link will be reset DCD reset If you enter an Inactivity Timeout value then the 805U a will automatically reset the link if there has been no data transmissions within this time If y
53. example Group Address First 1 3 Second 4 A Remote z Modules Group Address 1 2 4 Module A B and C are configured as transparent repeaters Module A is configured with group addresses 1 amp 2 module B with group addresses 2 amp 3 and module C with group addresses 3 amp 4 16 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 Module S and T are configured with group address 1 only one group address as it is not configured as a repeater When S transmits a message T and A will receive it and output the data If module X can hear the message it will not output it as module X is configured with group address 2 Repeater A will re transmit the radio message but on group address 2 Module S and T will receive the re transmitted message but will not output the message as the group address is now wrong Module X will receive the message and will output the message as the group address is now correct Repeater B will also receive the re transmitted message from A and will output the data as well as re transmit on group address 3 The only other module which is also on group address 3 is repeater C It will accept the message and re transmit it on group address 4 to module Z Note that when a message is transmitted from a remote module the repeaters will only transmit a message in one direction For example Group Address First 1 Second 2 d ES g S N 4 Remote z Modules x Group
54. ffer the XYR 300D Wireless Serial will start another radio transmission If error checking is configured then a 16 bit CRC error check is added to the end of the transmitted data packet The receiving module will receive the full data packet and check the CRC before outputting the data The maximum size of the data packet is configurable by the user maximum is 530 bytes If less data than the maximum size is input to the XYR 300D Wireless Serial then the XYR 300D Wireless Serial will transmit the actual data input If more data is input than the maximum size then the XYR 300D Wireless Serial will transmit multiple packets until all of the data is transmitted Because of radio start up delays the effective radio data rate will be lower than the transmitted data rate If you are sending large blocks of data and the serial rate is equal or more than the radio rate we recommend that you use CTS RTS flow control to prevent the input buffer from overflowing If you use the maximum data rate of 115 200 bits sec the best effective overall rate is approx 65 700 bits sec using a serial speed of 76 800 bits sec If you use a serial speed of 115 200 the effective overall rate will be lower If you are required to use a serial speed of 115 200 bits sec then we suggest that you configure the maximum packet size to 60 bytes this will give faster performance than the default setting of 530 bytes 3 2 1 Character Type The XYR 300D Wireless Serial may
55. figured serial and radio rates The number of bytes to start transmitting is stored in register S18 refer section 4 Configuration when a configuration is entered whereby the serial rate is less than the radio rate the XYR 300D Wireless Serial will automatically enter an appropriate value in S18 The user can change this value If the serial rate is the same as the radio rate or more than there is no delay There is an automatic protection if a certain time has elapsed and the number of starting bytes has not been input then the radio will start transmitting This is an override protection The XYR 300D Wireless Serial will automatically calculate the override time based on the configured serial rate and S18 the number of bytes required to start The override time is stored in register S19 this value can also be changed by the user 3 9 Radio Interference The XYR 300D Wireless Serial operates on the 902 928MHz license free radio band restricted to 915 928 MHz in Australia and 921 928MHz in New Zealand Devices on this radio band must use a spread spectrum technique to allow multiple users to share the band with minimal interference The XYR 300D Wireless Serial uses a frequency hopping spread spectrum technique Each time the XYR 300D Wireless Serial transmits it uses a different frequency channel in the band The XYR 300D Wireless Serial will not interfere or be interfered by radio devices on other bands such as two
56. from factory default The XYR 300D Wireless Serial has two sets of configuration parameters a set stored in non volatile memory and an active set in RAM memory Normally on start up the configuration is read from the stored memory to the active memory Changes can be made on line to the active configuration which are not stored Transmit and Receive Hold off times Transmit holdoff ATS16 x where x is the delay time in msec 0 255 For example ATS16 200 results in a transmit holdoff delay of 200msec Receive holdoff ATS15 x where x is the delay time in msec 0 255 For example ATS15 80 results in a receive holdoff delay of 80msec Radio Message Signature refer section 3 9 ATS21 0 1 2 or 3 1 is the default value To be compatible with old modules with fixed signature set to 0 If anew system set to 2 or 3 to separate from other XYR 300D Wireless Serial systems in the same area 4 6 Configuration Examples Transparent Mode Extending a PLC Network PLC PLC PLC PLC RS485 RS485 9 6KB 9 6KB XYR RS485 300D 19 2KB 19 2KB 38 4KB REPEATER DATA 7 DATA BITS 1 START 2 STOP EVEN PARITY Left hand Unit Configuration Set the module to factory default settings AT amp F Set the system address to a random number AT amp S138 Set the group address AT amp G1 The group address for the left hand side modules has been set to 1 Version 1 XYR 300D Wireless Serial Rad
57. g problems relate to an inadequate radio path or radio interference Before installing a system bench test the complete system with the XYR 300D Wireless Serial units near each other This test eliminates the radio path or interference as a factor and ensures that the system will operate in the way that you want It is not necessary to connect antennas however a small length of wire should be inserted into the middle pin of the coaxial connector this will act as an antenna If the bench test does not give adequate performance then you need to adjust the configuration parameters We recommend that you do not install the system until you are happy with the bench test performance If a system gives poor performance after it is installed check the adequacy of the radio path refer to the Diagnostics Section 6 Interference will only cause a problem if the amplitude of the interference is comparable to the radio signal from the XYR 300D Wireless Serial units If the interference level is relatively small then it will not affect the performance of the system If interference is causing a problem try to improve the normal radio level by mounting the antennas higher or in a better location This not always possible System performance may be improved by changing the following parameters e Ifin transparent mode try controlled mode e If configured for a radio data rate of 115200 or 57600 bits sec reduce the rate to 19200 bits sec e If l
58. guration is not changed DIL Switch settings allow the factory configuration to be restored testing functions and some simple back to back configurations If you want the module to start up in the same way each time you will need to leave the switches in the same setting If you are using the switches to do temporary changes then you should change the switches back to the zero position after powering up Note that these switch settings do not set the module system or group addressing this still needs to be set by Hayes Commands or the configuration program The four switches are located on the top end plate as per this diagram If you look at the end of the module with the front of the module up then Switch 1 is the left most switch and on or 1 is when the switch is down The switches in the diagram have the pattern 0100 42 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 Switch Function Equivalent Hayes Command at start up 0000 Normal Operation no change 0100 Restore Factory Defaults AT amp F Baud rates 1100 Perform Transmit BER Test AT amp TO for use with AT amp T1 at Serial Radio other module see section 6 2 1 0010 10 Transparent Mode Mode S MOBOC48 L1 9600 1 19200 CN O EC EE mp ECC f 0001 Fast Controlled Mode Auto Bee 1IBOC4 amp E1 amp Z0 2 amp 9600 19200 connect master 1001 AT amp M3 amp U1BIC6 amp E1 amp Z0 2 amp 19200 57600 L2 0101 AT8M38 U1B1C9
59. h the XYR 300D Wireless Serial without problems If an application really requires full duplex communications then the XYR 300D Wireless Serial should not be used Data input at the serial port is placed into the input buffer This buffer will store 2Kbytes of data and CTS RTS control can be configured on the RS232 port to prevent overflow 12 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 When the XYR 300D Wireless Serial unit detects data in the input buffer it initiates a radio message The radio message will end when the number of transmitted bytes reaches the maximum message length configurable by the user or if the input buffer becomes empty If the configured serial data rate is the same or more than the radio data rate then data is transmitted as soon as it enters the input buffer data streams from the input buffer to the radio port Ifthe serial rate is less than the radio rate then the transmission will be delayed for a period to allow sufficient data to build up in the input buffer to avoid the radio emptying the input buffer before a complete serial message has been input The XYR 300D Wireless Serial will calculate the amount of delay depending on the difference between the serial and radio rates The radio transmission will stop when the input buffer is empty or when the radio has transmitted the maximum number of bytes user configurable maximum 530 bytes If there is still data in the input bu
60. hat do not have environmental or safety consequences As with any process control solution the end user must weigh the risks and benefits to determine if the products used are the right match for the application based on security safety and performance Additionally it is up to the end user to ensure that the control strategy sheds to a safe operating condition if any crucial segment of the control solution fails Revision Information Document Name Document ID Version Publication Date Number XYR 300D Wireless Serial Radio Modem User s 34 XY 25 25 1 5 1 2008 Manual References The following list identifies all documents that may be sources of reference for material discussed in this publication Document Title Getting Started with Honeywell OneWireless solutions XYR3000 MSG How to build an XYR3000 system Terminology The following acronyms are used in the document Acronyms Model numbers XYR300X XYR3001 XYR3002 XYR301X XYR3011 XYR3012 XYR3013 XYR300G X XYR300G M XYR300G E Version 1 XYR 300D Wireless Serial Radio Modem User s Manual ii 5 1 08 Support and Contact Information United States and Canada Contact Honeywell Solution Support Center Phone 1 800 822 7673 In Arizona 602 313 5558 Calls are answered by dispatcher between 6 00 am and 4 00 pm Mountain Standard Time Emergency calls outside normal working hours are received by an answering service and returned within one hour Facsimile
61. he destination module and only this module will output the serial data The source module will add an error check 16 bit CRC to the data transmitted by radio The destination module will process the error check and if correct it will transmit an acknowledgment message ACK back to the source module If the source module does not receive a ACK it will re transmit the data The source module will attempt to transmit the data up to five times until an acknowledgment ACK is received If an acknowledgment is still not received then the DCD signal on the RS232 port will be reset and a alarm message can be sent to the host via the serial port An example of an application using controlled mode would be a radio modem link between an intelligent gas analyzer and a monitoring computer system Intelligent transducers do not normally provide addressing or error checking functions these would be provided by the XYR 300D Wireless Serial modules In controlled mode the destination address may be pre set or set on line by the host device using Hayes commands Hayes commands are a standard set of commands used with conventional telephone modems An example of an application that would use Hayes command to set destination addresses would be a central computer polling data loggers for periodic information Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 3 5 1 08 1 4 Repeater Units A XYR 300D Wireless Serial unit may be used a
62. he module resets the connection If used should be larger than the value in S6 S Registers provide a method of storing operational parameters of the module A radio module has different requirements to a telephone module so functions of the S Registers are also different S Registers may be examined using the command ATSn where n is the number of the S Register S Registers may be modified using the command ATSn xx where n is the S Register number and xx is the new value for the register S Registers and functions are listed below No Range Function Comment SO 0 255 Number of attempts before Should normally be set to 1 0 disables answering connection auto answering of calls ATA only message Sl 3 255 Escape Sequence Guard Min Delay before and after entering the Time Units 20 milliseconds escape sequence also Max Delay default 50 between characters of the escape sequence S2 1 255 Escape Sequence Character Normally 43 ASCII code S3 0 127 Carriage Return Character Normally 13 lt CR gt S4 0 127 Line Feed Character Normally 10 lt LF gt Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 53 5 1 08 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17 S18 54 Range 0 127 0 255 1 255 0 255 0 255 0 255 0 255 read only S12 0 S12 1 S12 2 S12 3 S12 4 S12 5 S12 6 S12 7 S12 8 0 3 0 255 0 7 0 255 0 255 0 255 Function Comment Back S
63. io Modem User s Manual 39 5 1 08 Set the serial data rate to 38400 Set the radio data rate to 19200 Set the character type to 7 1 2 even Exit and save the configuration ATC6 not necessary default AT amp B13 AT amp W ATO The operating mode will already be in transparent mode from the factory default settings The other default values for the other parameters will likely be OK Repeater Configuration Set the module to factory default settings Set the system address to the same random number Set the group address and unit secondary group address AT amp F AT amp S138 ATS G1 AT amp U2 The group address for the right hand side module will be set to 2 this corresponds to the secondary address of the repeater Note that the repeater will only output data to its PLC for messages received from the first XYR 300D Wireless Serial It will not output data from the right hand PLC If you set both group addresses to 1 then the repeater will output data from both sides this is only possible when there is only one repeater The disadvantage of this is that both sides will hear the re transmitted message that is the PLC that sent the message will receive the same message back as a re transmitted message This is not a problem with most PLC s but is with a small number of brands For these brands use a different group address either side of the repeater Set the serial data rate to 9600 Set the radio data rate to 1920
64. isconnect 0 1 sec Data Terminal Ready DTR Behavior The host controls DTR This command controls how the module reacts to the state of DTR Module ignores DTR and acts as if it is asserted If the host lowers DTR the module returns to command mode but does not disconnect If the host lowers DTR the module disconnects and returns to command mode If the host lowers DTR the module disconnects and goes to low power mode Raising DTR will cause the module to dial if the leased line settings are correct amp L1 CRC Error Checking Disable CRC Error Checking Enable CRC Error Checking Restore Factory Defaults This function is also available from the DIP Switches XYR 300D Wireless Serial Radio Modem User s Manual 51 AT amp G AT amp K amp KO amp K1 amp K2 amp K3 amp K4e AT amp L amp LO amp Lie amp L2 amp L3 AT amp M amp MOe amp MI1 amp M2 amp M3 AT amp N amp NO amp Nie AT amp S 52 Set module s Group Address Range 0 255 Default 0 Flow Control Configuration Flow Control Disabled CTS Always high Module ignores RTS not used not used CTS RTS Flow Control CTS Reflects the state of the local buffer Module only transmits serial data when RTS is high RS 485 Control Must be selected for RS 485 to work CTS is high CTS goes low when transmitting data RTS is ignored Configuration of start up mode and controlled mode operation At power up the module en
65. it always zero 1 Stop Bit 8 Odd Parity Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 35 5 1 08 1 2 Stop Bits 12 Even Parity For example AT amp B9 will be 7 data bits 2 stop bits odd parity The character type does not need to be the same for all modules in a system Transparent mode If you have forced the module to factory default configuration this configuration will not be necessary The following commands can be used to change the configuration to transparent mode AT MOS8 L1 Transparent repeater AT M18 L1 The repeater will use both a primary group address AT amp G and a secondary group address AT amp U Data will be output to the serial port only when received with the primary group address Controlled mode auto connect Master module AT amp EI amp M2 amp L2 The module will start up in operating mode and will automatically try to connect to the destination address saved in AT amp ZO this is the slave unit The destination address needs to be entered for example AT amp Z0 24 will store a destination address of 24 AT amp Z0 33 34 35 5 will store an address sequence where 5 is the destination address and 33 34 and 35 are repeater addresses The first repeater will be 33 The XYR 300D Wireless Serial master will attempt to connect to the destination address slave If the module cannot connect or if communications fails the module will continually send connect messages to make a conne
66. king functions to control the flow of data Every unit which receives the radio message and has the correct system and group addresses will output the data Transparent mode operation is effectively a broadcast system Data received at the serial port is transmitted out of the radio port Data received from the radio is transmitted out of the serial port Prior to transmitting units will listen to the radio channel to ensure that it is clear units will hold off from transmitting until the radio channel is clear At the RS232 port the CTS pin can be configured to go high while there is space in the input data buffer otherwise it is always high Host devices should provide a suitable protocol to ensure that error checking handshaking and implementation of an appropriate re transmission scheme is provided This mode of operation is particularly suited to devices designed to operate over a multidrop network such as PLC systems designed for operation over a RS 485 network The time taken to transmit a message is Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 15 5 1 08 lead in system group addr data error check if configured 30msec 2 bytes 0 5ms per byte 2 bytes 1 ms 19 2Kb 19 2Kb Ims 19 2Kb If error checking is not configured at the receiving unit data will start to be output approximately 1 msec after the system address has been received If error checking is configured data will be output approx 2msec after th
67. lder modules have serial number less than xxxx 190 xxxx for example serial number 0804 187 9469 will need to have register S21 set to 0 26 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 4 2 Addressing A XYR 300D Wireless Serial network comprises modules with the same system address The system address is a 8 bit value values 0 to 255 Only modules with the same system address will communicate with each other If you are adding another module to an existing system use the same value as the existing modules If you are starting a new system select random values and use the same value for each module In transparent mode a group address also needs to be configured The group address is also a 8 bit value values 0 to 255 This is not required in controlled mode In controlled mode each module is also configured with a unit address between 0 and 127 there can be up to 128 modules in the one controlled mode system If fast controlled mode is used the unit address must be between 0 and 15 there can only be two modules in any one fast controlled mode system In transparent mode the unit address is used as the second group address for transparent repeaters For modules not configured as a repeater the unit address is ignored For repeaters if a message is received with the correct system address and the first group address the data is output to the serial port and the message is re transmitted but with the
68. n both directions This test is generally the easiest to perform with one person the remote module can be set as a repeater and the full test can then be carried out from the other module During this test disconnect the serial cable to any host device at the repeater The BER test will automatically end if a test time has been entered at S8 register refer Appendix A If S8 has a zero value default the timer is inactive and the BER test will continue until manually stopped The BER test can also be initiated by the configuration switches in the end plate see section 4 7 6 2 3 On line diagnostics Some diagnostic values may be read by a host device using AT commands These values include the radio signal strength of the last message received ATS9 and the reason for the communication link resetting in controlled mode ATS12 refer Appendix 1 48 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 Chapter Seven WARRANTY amp SERVICE Honeywell products are warranted to be free from manufacturing defects for a period of 18 months from the effective date of purchase The effective date of purchase is decided solely by Honeywell Technologies This warranty does not extend to failures caused by the operation of the equipment outside the particular product s specification or use of the module not in accordance with this User Manual or abuse misuse neglect or damage by external causes or repairs
69. nce of three escape characters The default escape character is however this may be changed as it is one of the configuration parameters There must be a 1 second break of data before and after the escape sequence The XYR 300D Wireless Serial can be configured to start up in command mode or alternately in operating mode It would be normal for the modem to start up in command mode when used in single connect controlled mode Once in configuration mode the XYR 300D Wireless Serial unit will accept a string of Hayes commands and the configuration changes made The changes will not however be stored in permanent memory EEPROM unless the Hayes command for recording the configuration AT amp W is sent When the configuration changes are made the module must be put back into its operating mode by using the online Hayes command ATO Commands are entered in the format ATxy where x selects the parameter and y the value of the parameter For example ATB2 sets the radio data rate to 115200 baud B selects the radio rate parameter and 2 is the value corresponding to 115200 baud Summary Enter command mode lt 1sec break gt lt 1 sec break gt Response from XYR 300D Wireless Serial OK 34 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 Enter configuration commands ATxy Response from XYR 300D Wireless Serial OK Save configuration AT amp W Exit command mode ATO Note that some command
70. nfiguration File Communication Advanced Help To read the configuration in a module connect the cable and select the Read Configuration icon on the toolbar To configure a module select the Configure Module icon on the toolbar When you read or configure a program you will see the communication messages between the program and the module in the Serial Communications box in the bottom left hand corner of the program The communication messages are Hayes AT commands being generated or read by the program module Configuration details may be saved to disk or read from disk To save a configuration file select the Save icon on the toolbar The program will ask you for a filename and will give a file extension of 05D For example PLC57 05D Saving and Opening a configuration file To open an archived file select the Read icon on the toolbar Modifying an existing configuration If you read a configuration from a module or a saved file the program will display the configuration parameters You can change these parameters and then program the module and or save the file 28 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 4 4 1 Transparent Mode The default setting of the program is transparent mode Select the system address or use the random value already selected if the module is to become part of an existing system then you must select the same system addres
71. nt Yagi with 70 feet 20 metres of Cellfoil has a net gain of 4dB 10dB 6dB Connections between the antenna and coaxial cable should be carefully taped to prevent ingress of moisture Moisture ingress in the coaxial cable is a common cause for problems with radio systems as it greatly increases the radio losses We recommend that the connection be taped firstly with a layer of PVC Tape then with a vulcanising tape such as 3M 23 tape and finally with another layer of PVC UV Stabilised insulating tape The first layer of tape allows the joint to be easily inspected when trouble shooting as the vulcanising seal can be easily removed Where antennas are mounted on elevated masts the masts should be effectively earthed to avoid lightning surges For high lightning risk areas surge suppression devices between the module 6 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 and the antenna are recommended If the antenna is not already shielded from lightning strike by an adjacent earthed structure a lightning rod may be installed above the antenna to provide shielding 2 2 1 Dipole and Collinear antennas A collinear antenna transmits the same amount of radio power in all directions as such that are easy to install and use The dipole antenna with integral 15 cable does not require any additional coaxial cable however a cable must be used with the collinear antennas Collinear and dipole antennas should be mo
72. only Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 27 5 1 08 has USB serial connections with no RS232 port you will need to purchase a USB to RS232 converter cable Select the communications port that XYR 300D Configuration you will be using on the PC make fae communication Advanced Hep sure that no other program is using this com port The program default dejala is COMI if you are using a Operating Mode Transparent Mode Options Settings different com port select the Com Wet cd System Address Radio Seal Advanced Seo Port Settings icon from the toolbar Transparent Mode Im y Data Rate and select the com port C Transparent Repeater Group Addes l gt Hees Make sure that the serial data rate Controlled 115200 and character type is the same as Pais tanned Meat CRC Enor Checking that already configured in the Disable CRC Enor Checking module If you are configuring a er Enable CRC Error Checking new module then this will be the G g Packet Size bytes C Auto Connect Slave case If you are configuring a Serial Communications 530 Y module which has already been in fecal ies service and you do not know this ny information then you will need to Px Hold O nse force the module to factory default 0 settings using the DIP switches in the module end plate see section Y 4 7 of this manual Note that when you do this you will lose all of the configuration in the module XYR 300D Co
73. ot possible to achieve reliable communications between two XYR 300X modules then a third XYR 300X module may be used to receive the message and re transmit it This module is referred to as a repeater This module may also have a host device connected to it An antenna should be connected to the module via 50 ohm coaxial cable eg RG58 RG213 or Cellfoil terminated with a male SMA coaxial connector The higher the antenna is mounted the greater the transmission range will be however as the length of coaxial cable increases so do cable losses For use on unlicensed frequency channels there are several types of antennas suitable for use It is important antenna are chosen carefully to avoid contravening the maximum power limit on the unlicensed channel if in doubt refer to an authorised service provider The net gain of an antenna cable configuration is the gain of the antenna in dBi less the loss in the coaxial cable in dB The maximum net gain of the antenna cable configuration permitted is Country Max gain dB USA Canada 6 Australia New Zealand 0 The gains and losses of typical antennas are Antenna Gain dB Dipole with integral 15 cable 0 5dBi Collinear 3dBd 5 8dBi Collinear 6dBd 8 6 element Yagi 10 9 element Yagi 12 16 element Yagi 15 Cable type Loss dB per 30 ft 10 m Cellfoil 3 The net gain of the antenna cable configuration is determined by adding the antenna gain and the cable loss For example a 6 eleme
74. other users of the unlicensed radio channel We recommend that the flow of data over the radio channel is controlled by using error detection and handshaking that is returning an acknowledgment transmission if a data packet is received on the radio channel without error This function can be performed by either the host devices or the XYR 300D Wireless Serial modules The modules may be configured by the user to operate in one of two modes In transparent mode it is assumed that the host devices control the flow of data In controlled mode the XYR 300D Wireless Serial units control the flow of data 1 2 Transparent Mode The default configuration of the XYR 300D Wireless Serial modem is transparent mode the modules are set in this mode at the factory In transparent mode the XYR 300D Wireless Serial provides no control of the data transmissions no error correction Input data is simply transmitted by radio and every other XYR 300D Wireless Serial unit in that system which receives the transmission will output the data This mode relies on the host devices to perform the handshaking function and re transmitting serial data if the data is corrupted no handshake It also relies on the host devices to include any addressing necessary in the data In this mode modules are not configured with a unit address Data is broadcast every other XYR 300D Wireless Serial in the system will receive the data and output the data
75. ou use the link check feature you should enter an Inactivity Timeout value to reset the link at the slave unit Settings Radio Serial Advanced 5 Reg It is a good idea to use these timers as it provides a Data Rate higher level of security for the controlled mode system 19200 except for fast operation systems Normally a link Es Eme check time will be entered at the master unit for example 10 seconds and a inactivity timeout will be entered at the slave unit for example 15 seconds It is important that the inactivity timeout is greater than the link check time Packet Size bytes 530 2 CRC Error Checking e Disable CRC Error Checking C Enable CRC Error Checking A value of zero disables these parameters Tx Hold Off millisec 0 4 4 3 Other Parameters Rix Hold Off millisec Radio Data Rate 0 aj Select the radio data rate which you want to use Note that modules will only communicate with each other if they have the same radio data rate If you select a rate which is faster than the serial rate the XYR 300D Wireless Serial will automatically set transmission delay parameters in registers S18 and S19 refer section 3 8 To disable this deselect the PLC Mode box in the Serial configuration window CRC Error Checking It is normal for error checking to be disabled for transparent mode and enabled for controlled However you can select either for either mode Refer to
76. pace Character Normally 8 lt BS gt Link Check Timer Units Seconds 0 disables How frequently to send a Link Check message Usually set less than the timeout set by the AT Tcommand Default 0 Number of Connection How many times to attempt a connection attempts after an ATD command Default 5 Test Timer Units Seconds How long to run tests AT amp Tx Default 0 no time out Module Receive Level Units dBm RSSI indication of last received message DTR Loss Detection Time Units 10 milliseconds Not used Command Mode Diagnostic Reason module last returned to command mode i e connection lost Reset ATZ or Power Up Escape sequence DTR lowered No ACK from remote module after connected Activity timer timed out No response to dial request to remote module BUSY response from remote module on dial request Character received from host while attempting to connect Hang up from remote module Country code for radio not 0 US Canada user configurable eee eee ee 2 New Zealand 3 Europe Max Data Packet size Max Packet size 20 S14 x 2 Default transmitted by radio 255 530 bytes Not Used Transmit Hold off Time In msec default 0 Receive Hold off Time In msec default 0 Input buffer delay Radio will not transmit until the number of characters in the input buffer 2 x S18 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 No Range Function
77. rce module The source module will calculate a waiting time for the acknowledgment this time is based on the radio baud rate the message length number of bytes and the number of repeaters If the source module does not receive an ACK it will transmit the same message again The XYR 300D Wireless Serial will transmit the message up to five times If it does not receive an ACK after the 5 attempt it will assume communications failure and reset its DCD status The unsuccessful message will not be re transmitted and will be lost Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 21 5 1 08 Repeater Communications Successful Unit A Unit B Unit C Unit D Source Repeater Repeater Destination e Transmit e Receive message message Re transmit message Receive message Re transmit message Receive message Receive ACK Transmit Receive ACK Receive ACK ACK Re transmit Re transmit Output data ACK ACK Repeater units may also act as destination addresses for some transmissions and output data to a host device 3 7 What Operating Mode to Use 3 7 1 Transparent or Controlled Mode Transparent mode provides simpler operation as the units do not acknowledge transmissions received However reliable operation in transparent mode will only occur if the host devices check the messages and return acknowledgments Generally if a device is able to operate on a RS485 multi drop serial link it is suitable for transparent mo
78. reverse voltage protected During transmission 350mA During transmission 250mA 902 928 MHz USA Canada 4W ERP Australia NZ 1W ERP Version 1 5 1 08 Chapter Five Expected line of sight range Antenna Connector Serial Ports RS232 Port RS485 Port Data rate bit sec configurable Byte format System Parameters Operating modes USA Canada Australia NZ Range based on 19200 baud At 57600 baud expected range is 60 at 115200 baud expected range is 30 Female SMA coaxial DB9 female DCE 2 pin terminal block 1200 2400 4800 9600 14400 19200 38400 57600 76800 115200 7 or 8 data bits Transparent mode Controlled mode Specifications 20 miles 20 km depending on local conditions Range may be extended using intermediate modules as repeaters RTS CTS DTR DCD hardware signals provided Max distance 4000 1 2 km Stop start parity bits configurable Broadcast system Addressed communications with acknowledged System address Configurable 8 bit User Configuration Hayes commands from host device Or via on board DIP switches Diagnostics LED s OK DCD Radio and Serial RX TX Low signal receive led CTS RTS indication RSSI measurement in BER test dBm Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 45 5 1 08 Chapter Six TROUBLESHOOTING 6 1 Diagnostics Chart INDICATOR CONDITION MEANING OK LED OFF Continuously e Power supply failure e
79. rs s addr byte No of bytes 2 1 0 5 1 1 no of data bytes 2 The time for each byte is 0 5msec 19200 bits sec The lead in in fast operation mode is only Smsec If error checking is not configured at the receiving unit data will start to be output approx Imsec after the zero byte has been received If error checking is configured data will be output approx 2msec after the end of the message For example a message with 20 bytes of Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 19 5 1 08 data transmitted at 19200 bits sec with no repeaters will be output approx 44msec after the data is input assuming that error checking is configured There is a special configuration of controlled mode which provides a 5msec lead in time for fast operation see below With the fast operation the time to transmit 20 bytes at 19200 baud is less than 20 msec There are several configurations for controlled mode 3 6 1 Auto Connect Controlled Mode Auto connect mode is similar to fixed line modem operation The master unit wants to connect to only one slave address Normally the slave address is preconfigured On power up the master unit continuously tries to connect to the slave address The slave unit on power up does not try to connect but waits for a connect message Once a connection is made the DCD status at both ends is set and data can be transferred in either direction If there is no data transfer within the preconfigure
80. s a repeater to re transmit radio messages The purpose of a repeater unit is to extend radio range In transparent mode there can be an unlimited number of repeaters however with some conditions refer to Section 3 5 The repeater in transparent mode will repeat every transmission it receives PLC XYR 300D PLC PLC REPEATER XYR PLC RS485 300D XYR 300D In controlled mode up to five repeaters may be configured for any transmission path The repeaters are configured by address HOST HOST a pArA NO DATA DATA 2 3 4 XYR a XYR XYR Sa XYR 300D 300D 300D 300D REPEATER REPEATER DESTINATION zx HOST HOST pare DATA NO DATA 2 3 4 xR XR _ XR XR 300D 300D 300D 300D REPEATER DESTINATIO 4 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 Chapter Two INSTALLATION 2 1 General The XYR 300D Wireless Serial module is housed in an rugged aluminium case suitable for DIN rail mounting Terminals will accept wires up to 12 gauge 2 5 sqmm in size All connections to the module must be SELV Normal 110 240V mains supply should not be connected to any terminal of the XYR 300
81. s as the existing modules Also select the group address only modules with the same group address will communicate with each other The Go On line On Startup box will normally be selected for transparent mode If you deselect this then the module will start up in command mode and will not operate until the host device sends it a AT command to go on line Transparent Repeater XYR 300D Configuration File Communication Advanced Help Operating Mode Transparent Transparent Mode C Transparent Repeater Controlled C Auto Connect Slave Single Connect Serial Communications oe Controlled Mode Options General Advanced Stored Add System Address 136 Unit Address 1 Fast Operation Repeaters will not be used Low Power Mode When you select a transparent repeater the program will ask you to enter a second group address The repeater will re transmit messages from the first group to the second group and from the second group to the first group A transparent repeater will transmit data from its host device if there is a host connected using the first group address and will only output data to its host device if the received message has the first group address If the transparent repeater receives a message from the second group it will re transmit the message but it will not output the data 4 4 2 Controlled Mode XYR 300D Configuration File Communi
82. s will automatically exit command mode Several commands can be run together for example ATB2 amp W0O is the same as ATB2 and AT amp W and ATO Prior to Configuration Before configuring a module initially force the module to its factory default configuration either by using the DIP switches refer section 4 3 or by using the AT amp F command If you are making a change to an existing configuration this step is not necessary Appendix A details all of the Hayes commands accepted by the XYR 300D Wireless Serial The following commands are the most common Configuration of addressing AT amp S System Address Range 0 255 Default set by factory AT amp G Group Address Range 0 255 Default 1 AT amp U Unit Address Range 0 127 Default 1 This is also the second group address for transparent repeaters Configuration of Data Rates and Character Type ATB Radio Baud Rate The radio rate must be the same in all modules BO 19 200 baud default B2 115 200 baud Bl 57 600 baud ATC Serial Baud Rate The serial rate can be different CO 115 200 baud Cl 1200 baud C7 28 800 baud C2 2400 baud C8 31 250 baud C3 4800 baud C9 38 400 baud C4 9600 baud default C10 57 600 baud C5 14 400 baud C11 76 800 baud C6 19 200 baud C12 115 200 baud AT amp Bxx Character Type Data bits Stop bits Parity xx is formed by adding the values below Default is 8 data bits 1 stop bit no parity 7 Data Bits 0 No Parity 8 Data Bits 4 Zero Parity Parity b
83. se For details of authorized Service Agents contact your sales distributor Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 49 5 1 08 Appendix A Hayes Commands The following details all of the Hayes commands supported by the XYR 300D Wireless Serial Default settings are shown by a dot e Command ATA ATB BOe B2 ATC CO Cl C2 C3 C4e C5 C6 ATD ATDSn ATE EO Ele ATH ATI ATO ATQ QUe Ql ATSn 50 Function Answer Incoming Connection message in controlled mode the module can also be set to answer incoming connections immediately or after a certain number of attempts see S Register SO the default for SO is 1 meaning that the module will normally automatically answer on the first connection attempt If you want to use ATA SO should be set to zero or a larger number Set Radio Baud Rate Radio Baud rates are 19 200 57 600 and 115 200 baud 19 200 baud Bl 57 600 baud 115 200 baud Serial Baud Rate selection Automatic Baud Detection control 115 200 baud 1200 baud C7 28 800 baud 2400 baud C8 31 250 baud 4800 baud C9 38 400 baud 9600 baud C10 57 600 baud 14 400 baud Cll 76 800 baud 19 200 baud C12 115 200 baud Connection Dialling Control Dial a specific remote or a stored number Used in single connect controlled mode master module Dial stored number n see AT amp Z for storing numbers Local Echo Control Enable Disable Command Echo Disable Local Echo
84. se several groups or sub systems Only modules with the same system and group address will communicate directly with each other but modules with different group addresses can communicate via a repeater The group address is used for repeater operation in transparent mode The group address is not used in controlled mode A XYR 300D Wireless Serial can also be configured with a unit address this gives the module a unique identification The unit address feature is not used in transparent mode but it is used in controlled mode The system address also determines the hop set for the spread spectrum radio The radio continually changes frequency according to a pre set pattern or hop set There are 8 hop sets The last three bits of the 8 bit system address determines which hop set will be used In USA Canada there is effective radio isolation between hop sets 1 4 and hop sets 5 8 This means that if you have two systems in the same radio range you can select system addresses such that the two systems will not use the same radio channels at the same time If you use system addresses that are exactly different by 4 then you can be sure of this Systems with system addresses 127 and 131 will never use the same radio channels at the same time Also refer to section 3 9 covering radio interference topics 3 4 Transparent Mode In transparent mode radio messages are transmitted without unit addressing Units do not provide handsha
85. section 3 of this manual for a description on the operation of error checking Packet Size bytes This selects the maximum number of bytes which will be transmitted in one message If more than this number of bytes is input into the XYR 300D Wireless Serial then the module will transmit more than one message The default value is 530 bytes which is the largest packet value If you are operating in a noisy radio environment then the system may be more reliable if you reduce the maximum packet size and transmit a larger number of small messages rather than a lesser number of large messages Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 31 5 1 08 Transmit and Receive Hold off delay times A transmit delay time and a receive delay time can be configured These parameters may be used to fine tune and give priority to different XYR 300D Wireless Serial units in a system e After each message is transmitted a XYR 300D Wireless Serial unit will not transmit another message during the transmit delay time This could be used to allow a reply message to be received before the next message is sent e After a message is received a message will not be transmitted during the receive delay time This could be used to delay a reply message until other messages have been sent Serial Port settings The serial port settings should be selected to match the host device Different port settings may be selected for different
86. ter You can enter address structures for four slaves Dest 1 to Dest 4 However the host must use AT command to select which slave is required Without the use of AT commands the master will only attempt to connect to the address configured in Dest 1 Auto Connect Slave XYR 300D Configuration The only configuration required for a SI Semmunicaton Advanced Help auto connect slave module is to enter DBSB its unit address Operating Mode Controlled Mode Options Transparent General Advanced Stored Add Single Connect Transparent Mode System Address In single connect controlled mode 5 136 the host devices use AT commands to Controlled Unit Address select destination addresses to Auto Connect Master x connect to Normally the only C Auto Connect Slave r a C Sinale C t V Fast Operation configuration required 1s a unit ALA Repeaters will not be used address Low Power Mode Serial Communications Fast Operation Fast operation can be used for any controlled mode however it must be selected for each module It is normally used for auto connect however it can also be used for single connect In fast operation mode the master and slave modules continually communicate with each other even if there is no data to minimize radio synchronizing time when data is to be transmitted You cannot use repeaters when using the option Unit address XYR 300D Configuration should be l
87. ters command mode and waits for commands Normal single connect controlled mode operation If set to transparent mode in AT amp M the module automatically goes online For controlled mode ATD automatically dials the number stored in Z0 ATA answers an incoming call Auto connect mode master The module dials the number stored in amp Z0 automatically It continuously attempts to connect to that number Use DTR with the AT amp D command to control the connection Auto connect mode slave The module continuously attempts to answer any incoming call Use DTR with the AT amp D command to control the connection Operating Mode This allows selection between transparent mode controlled mode and fast operation mode Transparent Mode Transparent Repeater All serial data is sent out the radio with the configured system AT amp S and group AT amp G address All incoming radio data with the correct system address and matching group address is sent out the serial port and also re transmitted out the radio port using the unit address AT amp U setting as the group address All incoming radio data with the configured system address and group address matching the Unit address is re transmitted out the radio with the group address set to the group address Controlled Mode Fast Operation Controlled Mode No repeaters may be used Abort Connection Control Controls whether the module will abort a connection attempt in controlled mode
88. to their individual host devices The user may configure the XYR 300D Wireless Serial modems to add error checking to each data packet transmitted if error checking is configured data will not be output if it is received without a correct error check This feature provides additional protection against corruption of the data during the radio transmission If error checking is not configured then the data received by radio will be output without checking for errors DATA XYR 300D 2 XYR 300D Wireless Serial Radio Modem User s Manual Version 1 5 1 08 PLC XYR 300D PLC PLC XYR PLC RS485 300D i an XYR 300D Transparent mode is point to multipoint communications suitable for a host device which is able to communicate on a multi drop bus type network An example of an application is the use of radio modems to extend a PLC RS485 network The serial messages from the PLC s already include PLC addressing and error detection correction to control the flow of data 1 3 Controlled Mode Controlled mode provides point to point communications similar to telephone modems In controlled mode the flow of data is controlled by the XYR 300D Wireless Serial units Each XYR 300D Wireless Serial unit is configured with an address by the user and a destination address for the data to be transmitted to Data is transmitted addressed to t
89. unted vertically preferably 3 feet 1 metre away from a wall or mast to obtain maximum range 3ft minimum segs e ty Ye Ye ey Ye ey BEE COLINEAR ey Ye ey ANTENNA yy We ey We ey ey ey We ey We Ye We Ye Ye WEATHERPROOF Ley CONNECTORS WITH YY 3M 23 TAPE Mi SURGE ARRESTOR OPTIONAL COAXIAL CABLE STRESS RELIEF LOOP MAST PROVIDE GOOD GROUND CONNECTION TO MAST MODULE AND SURGE ARRESTOR GND Y EARTH STAKE mum IF GROUND CONDITIONS ARE E POOR INSTALL MORE THAN ONE STAKE INSTALL AERIAL ABOVE LOCAL OBSTRUCTIONS Version 1 XYR 300D Wireless Serial Radio Modem User s Manual 7 5 1 08 2 2 2 Yagi antennas A Yagi antenna provides high gain in the forward direction but lower gain in other directions This may be used to compensate for coaxial cable loss for installations with marginal radio path The Yagi gain also acts on the receiver so adding Yagi antennas at both ends of a link provides a double improvement Yagi antennas are directional That is they have positive gain to the front of the antenna but negative gain in other directions Hence Yagi antennas should be installed with the central beam horizontal and must be pointed exactly in the direction of transmission to benefit from the gain of the antenna The Yagi antennas may be installed with the elements in a vertical plane vertically polarised or in a horizontal plane horizontally polarised For

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