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1. LT Na a it ie NT LLLI H Er 25 n 2i CT ag ET E H I DE E E HH Pp li eas LI LLLI a i a 20 D NE CN ON N LiT AOC AHH PIT NY SEER eae ee m H HH 15 i E 5mm min li Li E HESS y 10 LE B5 I A LE 10 ib E Cf jh 3 T TA E Lid Lj E H H B E m TI f I I j 0 5 10 15 20 25 30 35 40 45 50 55 60 The CE mark shall consist of the initials CE taking the following form If the CE alert marking is reduced or enlarged the proportions given in the above graduated drawing must be respected The CE alert marking must have a height of at least 5mm except where this is not possible on account of the nature of the apparatus TheCE alert marking must be affixed visibly legibly and indelibly Restrictions Declarations of conformity Digi has issued Declarations of Conformity for the XBee RF Modules concerning emissions EMC and safety Files can be obtained by contacting Digi Support XBee Wi Fi RF Module S6B User Guide 137 Canada IC Annex Country
2. Packet fields Offset Example Description Application Number1 0 0x4242 This is an easy number to create an header accepted frame Number2 2 0x0000 Number1 Number2 0x4242 This is an easy way to send a frame that software will not reject Packet ID 4 0x00 Reserved for later use 0 for now EncPad 5 0x00 Command ID 6 0x03 General Purpose Memory Command Command 7 0x00 Don t request an acknowledgment Options Command GPM CMD ID 8 0x06 Firmware verify and install command specific data GPM OPTION 9 0x00 Reserved for later use 0 for now S GPM BLOCK 10 0x00 NUM GPM START 12 0x00 NDEX GPM NUM B 14 0x0000 YTES GPM DATA 16 This field is unused for this command XBee Wi Fi RF Module S6B User Guide 47 Local host The serial communication service connects an IP port to the serial peripheral UART or SPI of the XBee No additional formatting or header is required and data will be transferred between the RF hardware and Serial Communication hardware as received The IP ports are configured using the CO and DE commands Note that port OxBEE is reserved for the XBee Application Service and should not be used for the Serial Communication Service The behavior of this service varies based on the mode of the serial port and is discussed in the following sections Transparent mode In transparent mode only one port is available and that port may be either UDP or TCP depending on th
3. It is recommended that a no clean solder paste be used in assembling these modules This will eliminate the clean step and ensure unwanted residual flux is not left under the module where it is difficult to remove In addition Cleaning with liquids can result in liquid remaining under the shield or in the gap between the module and the OEM PCB This can lead to unintended connections between pads on the module Theresidual moisture and flux residue under the module are not easily seen during an inspection process Factory recommended best practice is to use a no clean solder paste to avoid the issues above and ensure proper module operation Reworking Rework should never be performed on the module itself The module has been optimized to give the best possible performance and reworking the module itself will void warranty coverage and certifications We recognize that some customers will choose to rework and void the warranty the following information is given as a guideline in such cases to increase the chances of success during rework though the warranty is still voided The module may be removed from the OEM PCB by the use of a hot air rework station or hot plate Care should be taken not to overheat the module During rework the module temperature may rise above its internal solder melting point and care should be taken not to dislodge internal components from their intended positions XBee Wi Fi RF Module S6B User Gui
4. LL eel CTS dica preme out DOUT data out 6 RTS Mo OS XBEE XBEE Microcontroller Module Module XBee Wi Fi RF Module S6B User Guide 27 Serial communication UART serial data Data enters the module UART through the DIN pin as an asynchronous serial signal The signal should idle high when no data is being transmitted Each data byte consists of a start bit low 8 data bits least significant bit first and a stop bit high The following figure illustrates the serial bit pattern of data passing through the module Least Significant Bit first o 1 1 1 1 1 0 0 0 Idle high UART Signal Signal 0 VDC Voltage Start Bit low Stop Bit high Time Serial communications depend on the two UARTs the microcontrollers and the RF modules to be configured with compatible settings baud rate parity start bits stop bits data bits The UART baud rate parity and stop bits settings on the XBee module can be configured with the BD NB and SB commands respectively For details see XBee command reference on page 105 In the rare case that a radio has been configured with the UART disabled the module may be recovered to the UART operation by holding DIN low at reset time As always DIN forces a default configuration on the UART at 9600 baud and it will bring up the module in command mode on the UART port Appropriate commands can then be sent to the module to configure it for UART oper
5. MCS 2 19 5 21 67 Mb s MCS 3 26 28 89 Mb s MCS 4 39 43 33 Mb s MCS 5 52 57 78 Mb s 15 13 MCS 6 58 5 65 Mb s 14 13 MCS 7 65 72 22 Mb s XBee Wi Fi RF Module S6B User Guide 8 5 8 5 11 EVM maximum output power typical EVM 25 C max output power Standard Data rate EVM dB 1 Mb s 40 2 Mb s 40 802 11b 5 5 Mb s 38 11 Mb s 36 6 Mb s 18 9 Mb s 20 12 Mb s 21 18 Mb s 22 802 112 24 Mb s 22 36 Mb s 23 48 Mb s 25 54 Mb s 26 MCS 0 6 5 7 22 Mb s 19 MCS 1 13 14 44 Mb s 21 MCS 2 19 5 21 67 Mb s 22 MCS 3 26 28 89 Mb s 24 802 11n MCS 4 39 43 33 Mb s 25 MCS 5 52 57 78 Mb s 25 MCS 6 58 5 65 Mb s 26 MCS 7 65 72 22 Mb s 28 XBee Wi Fi RF Module S6B User Guide XBee Wi Fi module specifications 12 Electrical specifications Specification XBee Wi Fi module specifications XBee Wi Fi Supply voltage Operating Current transmit max output power 802 11b 3 14 3 46 VDC 1 Mb s 2 Mb s 5 5 Mb s 11 Mb s 309 mA 802 11g 6 Mb s 9 Mb s 12 Mb s 18 Mb s 24 Mb s 36 Mb s 271 mA 48 Mb s 54 Mb s 225 mA 802 11n MCS 0 6 5 7 22 Mb s MCS 1 13 14 44 Mb s MCS 2 19 5 21 67 Mb s MCS 3 26 28 89 Mb s MCS 4 39 43 33 Mb s MCS 5 52 57 78 Mb s 260 mA MCS 6 58 5 65 Mb s 217 mA
6. MCS 7 65 72 22 Mb s 184 mA Operating current Receive 100mA Deep sleep current 6 uA 925 C Associated sleep current XBee Wi Fi RF Module S6B User Guide 2 mA asleep 100 mA awake For more information see AP associated sleep on page 51 13 Serial communication specifications The XBee Wi Fi RF modules support both UART Universal Asynchronous Receiver Transmitter and SPI slave mode Serial Peripheral Interface in slave mode only serial connections XBee Wi Fi module specifications UART Specification XBee Wi Fi Through hole XBee Wi Fi Surface Mount UART pins Module pin number Module pin number DIO13 DOUT 2 3 DIO14 DIN 3 4 DIO7 nCTS 12 25 DIO6 nRTS 16 29 For more information on UART operation see UART on page 14 SPI Specification XBee Wi Fi Through hole XBee Wi Fi Surface Mount SPI pins Module pin number Module pin number DIO2 SPI SCLK 18 14 DIO3 SPI_nSSEL 17 15 DIOA SPI MOSI 11 16 DIO12 SPI MISO 4 17 DIO1 SPI nATTN 19 12 For more information on SPI operation see SPI communications on page 28 XBee Wi Fi RF Module S6B User Guide 14 GPIO specifications XBee Wi Fi module specifications The XBee Wi Fi modules have 14 Through hole version and 20 Surface Mount version GPIO General Purpose Input Output ports available Those available will depend on the module configuration as some GPIO ports are consumed by serial communi
7. A Data in binary or ASCII format based on the command For the ID 13 0x63 command the data is in ASCII format m If the command was set then this field 14 0x63 c is not returned 15 0x65 e 16 0x73 s 17 0x73 s 18 0x50 p 19 Ox6F o 20 0x69 i 21 Ox6E n 22 0x74 t XBee Wi Fi RF Module S6B User Guide 44 Local host Sending the serial data command to XBee Using this service to send data out the serial port is not required Most users choose to use the Serial Communication Service see below for sending data from a network client One reason to use the XBee Application Service to send the serial data command from a network client is to receive an acknowledgment when sending a UDP packet The client can request an acknowledgment from the XBee but must wait to receive the acknowledgment before sending the next packet The client is responsible for retransmissions due to missed acknowledgments When resending packets duplicates can be received at the destination due to a successful serial data command and a failed acknowledgment packet The host in this case must be able to handle duplicate packets The following packet structures are examples of sending data and receiving an acknowledgment using the XBee application service Serial data command Packet fields Offset Example Description Application Number1 0 0x4242 header Number2 2 0x0000 Number1 Number2 0x42
8. GPM OPTIONS This field is unused for this command Set to O GPM BLOCK NUM GPM START INDEX GPM NUM BYTES GPM DATA No data bytes should be specified for this command PLATFORM INFO 0x80 When a PLATFORM INFO REQUEST command request has been unicast to a node that node will send a response in the following format to the source endpoint specified in the requesting frame Field name Command specific description GPM CMD ID Should be set to PLATFORM INFO 0x80 GPM OPTIONS A 1 in the least significant bit indicates an error occurred All other bits are reserved at this time GPM BLOCK NUM Indicates the number of GPM blocks available GPM START INDEX Indicates the size of a GPM block in bytes GPM NUM BYTES The number of bytes in the GPM DATA field For this command this field will be set to O GPM DATA No data bytes should be specified for this command Example A PLATFORM INFO REQUEST sent to a radio with a serial number of 0x0013a200407402AC should be formatted as follows spaces added to delineate fields 7E 001C 11 01 0013A200407402AC FFFE E6 E6 0023 C105 00 00 00 00 0000 0000 0000 24 Assuming all transmissions were successful the following API packets would be output the source node s serial interface 7E 0007 8B 01 FFFE 00 00 00 76 7E 001A 91 0013A200407402AC FFFE E6 E6 0023 C105 C1 80 00 0077 0200 0000 EB ERASE 0x01 The ERASE command erases write
9. Serial data may be sent to the Device Cloud as files or as binary data points This is selected with bit 4 of the DO command If DO bit 4 is set then transparent data is sent to the Device Cloud as binary data points Otherwise it is sent as a file Sending files The file name that is written on the Device Cloud is named serial O The file type will be text plain DO bit 5 selects whether to append to an existing file or to replace it If replacing an existing file and the size of the data being sent exceeds the maximum frame size allowed 1400 bytes then that frame will be broken up and only the last part will show up in the file because the last part will replace rather than append to the first part Sending binary data points Binary data points are sent to the Device Cloud in transparent mode by setting DO to bit 4 Also bit O must be set to enable the Device Cloud and bit 2 must be set so that transparent data will go to the Device Cloud Therefore DO should be 0x15 or 0x17 to implement this feature The Device Cloud will show the transparent data as binary data points which you can see by clicking Data Services Data Streams and selecting the MAC address of the module serial O XBee Wi Fi RF Module S6B User Guide 61 1 0 sampling Receiving data from Device Cloud Transparent data is received from the Device Cloud using the Device Request interface if the module is operating in transparent mode ATAP 0 and the Device Cloud
10. This frame type utilizes the serial data service The frame gives greater control to the application over the IP setting for the data Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB 1 0x00 Number of bytes between the length and checksum LSB 2 0x11 API API frame 3 0x20 frame identifier specific data Frame ID 4 0x01 Set to a value that will be passed back in the Tx Status frame 0 disables the Tx Status frame IPv4 32 bit MSB 5 OxCO Use OxFFFFFFFF for broadcast when protocol is destination UDP The address in the example is for a address 6 0xA8 destination of 192 168 0 100 7 0x00 8 0x64 16 bit MSB 9 0x26 UDP or TCP port number destination port LSB10 0x16 16 bit source MSB 11 0x26 UDP or TCP port number port LSB12 0x16 To send a UDP packet this must match the port number of the listening port as specified by CO To send a TCP packet on a new connection this must be 0 Protocol 13 0x00 0 UDP 1 TCP Protocol use for the transmitted data Transmit 14 0x00 Bit field BIT 1 eg 1 Terminate socket after tx complete XBee Wi Fi RF Module S6B User Guide 0 Leave socket open use TCP timeout Ignore bit for UDP packets All other bits are reserved and should be 0 87 API frames Frame fields Offset Example Description API RF data 15 Ox48 H Up to 1400 bytes of data This is 8 bytes more frame than the max size repo
11. XBee Wi Fi RF Module S6B User Guide XBee Wi Fi RF Module S6B User Guide Part number 90002180 M Revision Date Description A December 2012 Document created BtoJ March 2013 to Various operation specification and instructional updates October 2014 K January 2015 Added revision table added ETSI updates general document updates L September 2015 Fixed an error related to instructions for DIO13 DOUT Added note to the Pull Direction in the AT command table Updated to new template M September 2015 Added serial data interface and serial data throughput to the RF specifications Disclaimers Information in this document is subject to change without notice and does not represent a commitment on the part of Digi International Digi provides this document as is without warranty of any kind expressed or implied including but not limited to the implied warranties of fitness or merchantability for a particular purpose Digi may make improvements and or changes in this manual or in the product s and or the program s described in this manual at any time Trademarks and copyright Digi Digi International and the Digi logo are trademarks or registered trademarks in the United States and other countries worldwide All other trademarks mentioned in this document are the property of their respective owners 2015 Digi International All rights reserved Warranty View the product warranties online http
12. XBee Wi Fi module specifications General specifications XBee Wi Fi XBee Wi Fi Specification Through hole Surface Mount Dimensions 0 960 x 1 297 0 866 x 1 330 in 2 438cm x 3 294cm 2 200 x 3 378 cm Operating Temperature 30 to 85 C Antenna Options PCB Antenna U FL PCB Antenna U FL Connector RPSMA Connector Connector or or RF Pad Integrated Wire XBee Wi Fi RF Module S6B User Guide 7 RF specifications Specification XBee Wi Fi Through hole XBee Wi Fi module specifications XBee Wi Fi Surface Mount Frequency ISM 2 4 2 5GHz Number of 13 Channels Yes Adjustable Power Wi Fi Standards 802 11 b g and n Transmit Power Up to 16 dBm Output Average 13 dBm for Europe Australia Brazil See table below FCC IC Test 802 11b 2 73 to 26 81 dBm 802 11b 2 08 to 26 13 dBm Transmit Power 802 11g 7 87 to 28 52 dBm 802 11g 7 15 to 27 72 dBm Range Peak 802 11n 800 ns GI 8 03 to 28 75 dBm 802 11n 800 ns GI 7 02 to 27 89 dBm 802 11n 400 ns GI 8 04 to 28 64 dBm 802 11n 400 ns GI 7 33 to 28 20 dBm RF Data Rates 1 Mb s to 72 22 Mb s See table below Serial Data UART up to 1 Mb s SPI up to 6 MHz Interface Serial Data UART up to 320 Kb s SPI to 1 Mb s Throughput ix d ael 93 to 71 dBm Sensitivity See table below 25 C 1096 PER XBee Wi Fi RF Module S6B User Guide 8 RF data rates XBee Wi Fi module specifications RF dat
13. 0x0013a200407402ac a FIRMWARE VERIFY packet should be formatted as follows spaces added to delineate fields 7E 001C 11 01 0013A200407402AC FFFE E6 E6 0023 C105 00 00 05 00 0000 0000 0000 1F Assuming all transmissions were successful and that the firmware image previously loaded into the GPM is valid the following API packets would be output the source node s serial interface 7E 0007 8B 01 FFFE 00 00 00 76 7E 001A 91 0013A200407402AC FFFE E6 E6 0023 C105 C1 85 00 0000 0000 0000 5F Working with flash memory When working with the General Purpose Memory the user should be aware of a number of limitations associated with working with flash memory Hash memory write operations are only capable of changing binary 1 s to binary O s Only the erase operation can change binary 0 s to binary 1 s For this reason it is usually necessary to erase a flash block before performing a write operation Aflash memory block must be erased in its entirety when performing an erase operation A block cannot be partially erased Flash memory has a limited lifetime The flash memory on which the GPM is based is rated at 20 000 erase cycles before failure Care must be taken to ensure that the frequency of erase write operations allows for the desired product lifetime Digi s warranty will not cover products whose number of erase cycles has been exceeded Over the Air firmware upgrades described in the next section require the entire GPM be erase
14. 12 0x67 AT MSB 13 0x44 D Command Name Two ASCII characters that command identify the AT command LSB 14 0x31 1 Status 15 0x00 0 OK 1 ERROR 2 Invalid dommand 3 Invalid parameter 4 Tx failure Parameter If present indicates value of the requested value parameter If not present this is not a response to a query command Checksum 16 0x33 OxFF minus the 8 bit sum of bytes from offset 3 to this byte AT command response Frame Type 0x88 In response to an AT Command message the module will send an AT Command Response message Some commands will send back multiple frames for example the AS Active Scan command Example Suppose the BD parameter is changed on the local module with a frame ID of 0x01 If successful parameter was valid the response below would be received Frame fields Offset Example Description Start 0 Ox7E delimiter XBee Wi Fi RF Module S6B User Guide 91 API frames Frame fields Offset Example Description Length MSB 1 0x00 Number of bytes between the length and the checksum LSB 2 0x05 APlframe API Frame 3 0x88 specific Identifier data Frame ID 4 0x01 AT MSB 5 0x42 B Command Name Two ASCII characters that Command identify the AT command LSB 6 0x44 D Status 0x00 0 OK 1 ERROR 2 Invalid Command 3 Invalid Parameter Parameter 7 Register data in binary format If the register Value was set then this field is not returned as in this e
15. I O settings AT command Name and description Force Sample Forces a read of all enabled digital and analog input lines If no lines are enabled for digital or analog input an error is returned Parameter range I O settings Default IO Sample Rate Set Read the IO sample rate to enable periodic sampling For periodic sampling to be enabled IR must be set to a non zero value and at least one module pin must have analog or digital IO functionality enabled see the DO D8 PO P2 commands in the XBee command reference on page 105 The sample rate is measured in milliseconds WARNING If IR is set to 1 or 2 the module will not keep up and many samples will be lost 0 OxFFFF x 1 ms 0 no sampling IO Digital Change Detection Set Read the digital IO pins to monitor for changes in the IO state IC works with the individual pin configuration commands DO D9 PO P2 If a pin is enabled as a digital input output the IC command can be used to force an immediate IO sample transmission when the DIO state changes IC is a bitmask that can be used to enable or disable edge detection on individual channels Unused bits should be set to 0 0 OxFFFF Sample from Sleep Rate The number of sleep cycles that must elapse between periodic I O samples This allows 1 0 samples to be taken only during some wake cycles During those cycles I O samples are taken at the rate specified by IR IR can be 0 which causes on
16. Set Read the bit field that configures the internal resistor status for the digital input lines Note that internal pull up down resistors are not available for digital output pins analog input pins or for disabled pins 1 specifies the resistor is enabled 0 specifies no resistor The PD command specifies whether the resistor is pull up or pull down Pin numbers are listed with the TH module pin first followed by the SMT module pin e g pin 11 24 indicates pin 11 on the through hole module and pin 24 on the surface mount module Bits 0 DIO4 Pin 11 24 10 DIO12 Pin 4 5 Ox7FFF TH x BR 1 DIO3 AD3 Pin 17 30 j r P OERE DIO10 PWM RSSI PWMO Pin 6 7 O OxFFFFF SMT SM 2 DIO2 AD2 Pin 18 31 12 DIO11 PWM1 Pin 7 8 3 DIO1 AD1 Pin 19 32 13 DIO7 CTS Pin 12 25 4 DIOO ADO Pin 20 33 14 DIO13 DOUT pin2 3 5 DIO6 RTS Pin 16 29 15 DIO15 pin NA 17 6 DIO8 nDTR Sleep Request Pin 9 10 16 DIO16 Pin NA 16 7 DIN Config Pin 3 4 17 DIO17 Pin NA 15 8 DIO5 Associate Pin 15 28 18 DIO18 Pin NA 14 9 DIO9 On Sleep Pin 13 26 19 DIO19 Pin NA 12 Pull Direction Set Read resistor direction for OX7EFF on TH the corresponding bits set in PR 1 pull up 0 Ox7FFF on TH 7 on PD 0 pull down If the bit is not set in PR then OxFFFFF on PD is unused Note that resistors are not 0 OxFFFFF on SMT SMT applied to disabled lines XBee Wi Fi RF Module S6B Use
17. e g COA80064 When reading in API mode the format is binary In all other cases e g command mode the read format is dotted decimal notation Parameter range 0 0 0 0 255 255 255 255 Addressing Default 0 0 0 0 MK IP Address Mask This command is read only when DHCP is enabled and it is read write when using static IP addresses When setting the format may be either dotted decimal e g 255 255 255 0 or binary e g FFFFFFOO When reading in API mode the format is binary In all other cases e g command mode the read format is dotted decimal notation 0 0 0 0 255 255 255 255 0 0 0 0 GW Gateway IP address This command is read only when DHCP is enabled and it is read write when using static IP addresses When setting the format may be either dotted decimal e g 192 168 0 1 or binary e g C0A80001 When reading in API mode the format is binary In all other cases e g command mode the read format is dotted decimal notation 0 0 0 0 255 255 255 255 0 0 0 0 SH Serial Number High Read the high 16 bits of the module s unique 48 bit address 0 OxFFFFFFFF read only factory set SL Serial Number Low Read the low 32 bits of the module s unique 48 bit address 0 OxFFFFFFFF read only factory set NI Node Identifier Stores a string identifier The register only accepts printable ASCII data In AT Command Mode a string cannot start with a spa
18. which is illustrated in the figure below The serial receive buffer collects incoming serial characters and holds them until they can be processed The serial transmit buffer collects data that is received via the RF link that will be transmitted out the UART or SPI port Internal data flow diagram DIN MOSI C eceiv ransmitter X Le CTS Antenna Port DOUT or RTS Serial receive buffer When serial data enters the RF module through the DIN Pin or the MOSI pin the data is stored in the serial receive buffer until it can be processed Under certain conditions the module may not be able to process data in the serial receive buffer immediately If large amounts of serial data are sent to the module such that the serial receive buffer would overflow then the new data will be discarded If the UART is in use this can be avoided by the host side honoring CTS flow control Serial transmit buffer When RF data is received the data is moved into the serial transmit buffer and sent out the UART or SPI port If the serial transmit buffer becomes full and system buffers are also full then the entire RF data packet is dropped Whenever data is received faster than it can be processed and transmitted out the serial port there is a potential of dropping data even in TCP mode UART flow control The nRTS and nCTS module pins can be used to provide RTS and or CTS flow control CTS flow control provides an indication to the host to s
19. www digi com howtobuy terms Customer support If you need assistance contact Digi Technical Support Telephone 8 00 am 5 00 pm U S Central Time 866 912 3444 toll free U S A and Canada 1952 912 3456 Worldwide Online www digi com support eservice Mail Digi International 11001 Bren Road East Minnetonka MN 55343 US Contents Overview XBee Wi Fi module specifications 7 General specifications 7 RF specifications 8 RFdatarates 9 Receiver sensitivity 10 RF transmit power typical 11 EVM maximum output power typical 12 Electrical specifications 13 Serial communication specifications 14 Design notes 20 Power supply 20 RF module operation Serial communication 27 UART communications 27 SPI communications 28 Serial buffers 30 Serial interface protocols 31 Modes of operation 33 Idle mode 33 Transmit mode 33 Command mode 33 802 11 bgn networks Infrastructure networks 37 Ad hoc networks 38 XBee IP services XBee application service 41 Localhost 41 TX64 and RX64 API frames 42 Network client 42 Sending configuration commands 43 XBee Wi Fi RF Module S6B User Guide Sending the serial data command to XBee 45 Sending over the air firmware upgrades 47 Transparent mode 48 Sleep Using sleep mode UART 50 Using sleep mode SPI 51 Sleep options 51 AP associated sleep 51 Pinsleep mode 51 Cyclic sleep mode 52 Deep sleep non associated sleep 52 Pin sleep mode 52 Cyclic sleep mode 52 Advanced app
20. 10ms units XBee Wi Fi RF Module S6B User Guide 1 0x83D600 x 10ms OxC8 2 seconds 124 AT command SO Command Name and description Sleep Options Configure options for sleep Unused option bits should be set to 0 Sleep options include 0x40 Stay associated with AP during sleep Draw more current during sleep with this option enabled but also avoid data loss 0x100 For cyclic sleep ST specifies the time before returning to sleep With this bit set new receptions from either the serial or the RF port do not restart the ST timer Current implementation does not support this bit being turned off Execution commands Parameter range 0 OxO1FF Default 0x100 WH Wake Host Set Read the wake host timer value If the wake host timer is set to a non zero value this timer specifies a time in millisecond units that the module should allow after waking from sleep before sending data out the UART or transmitting an IO sample If serial characters are received the WH timer is stopped immediately 0 OxFFFF x 1ms ST Wake Time Wake time for cyclic modes New data does not refresh the timer However if there is data to transmit or receive after ST expires those actions occur before the module goes to sleep Max wake time is 3600 seconds 0x1 Ox36EE80 x 1 ms Ox7DO SA Association Timeout Time to wait for association before entering deep sleep Wakeup from de
21. Baud Rate parameter 3 9600 b s Send AT commands and parameters using the syntax shown below AT ASCII Space Parameter Carriage Prefix Command Optional Optional HEX Return ere Example ATDL 1F lt CR gt To read a parameter value stored in the RF module s register omit the parameter field The preceding example would change the RF module baud rate to 7 which would allow operation at 115 200b s To store the new value to non volatile long term memory subsequently send the WR Write command For modified parameter values to persist in the module s registry after a reset changes must be saved to non volatile memory using the WR Write Command Otherwise parameters are restored to previously saved values after the module is reset Multiple AT Commands can be sent at a time when separated by a comma in Command Mode e g ATSH SL Command response When a command is sent to the module the module will parse and execute the command Upon successful execution of a command the module returns an OK message If execution of a command results in an error the module returns an ERROR message Applying command changes Any changes made to the configuration command registers through AT commands will not take effect until the changes are applied For example sending the BD command to change the baud rate will XBee Wi Fi RF Module S6B User Guide 34 Modes of operation not change the actual baud rate until changes are
22. IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description 0 0x1770 x 100 ms T5 Set time to hold DIO5 Sets how long an output level programmed by bit 5 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description 0 0x1770 x 100 ms T6 Set time to hold DIO6 Sets how long an output level programmed by bit 6 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description 0 0x1770 x 100 ms T7 Set time to hold DIO7 Sets how long an output level programmed by bit 7 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description XBee Wi Fi RF Module S6B User Guide 0 0x1770 x 100 ms 118 Output Control AT command Name and description Parameter range Default Set time to hold DIO8 Sets how long an output level programmed by bit 8 of the IO command is held in the selected state before LE reverting to its configured level See Output P RAAT OOO ns j control on page 59 for a functional description Set time to hold DIO9 Sets how long an output level programmed by bit 9 of the IO command is held in the selected state before LL reve
23. Restriction Reason remark Annex 3 BandA France Limited Outdoor use limited to 10 mW e i r p within the band 2454 Wideband Data implementation 2483 5 MHz Military Radiolocation use Refarming of the 2 4 Transmission GHz has been ongoing in recent years to allow current relaxed systems h regulation Full implementation planned 2012 2400 0 2483 5 MHz Italy For private use a general authorisation is required if WAS RLAN s are used outside own premises For public use a general authorisation is required Norway Implemented This subsection does not apply for the geographical area within a radius of 20 km from the centre of Ny Alesund Russian Limited 1 SRD with FHSS modulation Federation implementation 1 1 Maximum 2 5 mW e i r p 1 2 Maximum 100 mW e i r p Permitted for use SRD for outdoor applications without restriction on installation height only for purposes of gathering telemetry information for automated monitoring and resources accounting systems Permitted to use SRD for other purposes for outdoor applications only when the installation height is not exceeding 10 m above the ground surface 1 3 Maximum 100 mW e i r p Indoor applications 2 SRD with DSSS and other than FHSS wideband modulation 2 1 Maximum mean e i r p density is 2 mW MHz Maximum 100 mW e i r p 2 2 Maximum mean e i r p density is 20 mW MHz Maximum 100 mW e i r p Permitted to use SRD for outdoor applications only for purposes of gathering
24. and port doesn t exist Source port is non zero so that a new connection is not attempted 0x78 Source port on a UDP transmission doesn t match a listening port on the transmitting module Checksum 6 0x75 OxFF minus the 8 bit sum of bytes from offset 3 to this byte Note New transmission status codes may be added in future firmware releases Modem status Frame Type Ox8A RF module status messages are sent from the module in response to specific conditions Example The following API frame is returned when a module is powered on in API mode Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB 1 0x00 Number of bytes between the length and the checksum LSB 2 0x02 API frame APIFrame 3 Ox8A specific Identifier data XBee Wi Fi RF Module S6B User Guide 93 API frames Frame fields Offset Example Description Status 4 0x00 0 Hardware reset or power up 1 Watchdog timer reset 2 Joined 3 No longer joined to access point OxOE Device Cloud connected OxOF Device Cloud disconnected Checksum 5 0x75 OxFF minus the 8 bit sum of bytes from offset 3 to this byte Note New modem status codes may be added in future firmware releases ZigBee TX status Frame Type Ox8B This frame type is only provided for software compatibility with other XBee modules Frame type 0x89 is normally sent in response to transmissions This frame type is sent in re
25. called Association In order for a device to associate it must know the following items about the desired wireless network SSID the name of the wireless network Encryption if and how the network encrypts or scrambles its data Authentication how and if the network requires its members to prove their identity Channel what channel frequency range the wireless network uses Once a device is associated it can send and receive data from other associated devices on the same network When the client is done or needs to leave it then can Dis associate and be removed from the wireless network XBee Wi Fi RF Module S6B User Guide 38 Infrastructure networks XBee Wi Fi standards The XBee Wi Fi module will operate in three of the available 802 11 standards 802 11 b The 802 11b standard was approved in July 1999 and can be considered the second generation 802 11b operates in the 2 4 GHz frequency ISM band The data rate is from 1 to 11 Mb s 802 11g The 802 11g standard was approved in 2003 It provides a maximum data rate of 54 Mb s In addition the standard is also fully backwards compatible with existing 802 11b wireless networks 802 11n The 802 11n standard was approved in 2009 It provides for data rates up to 300Mb s The XBee Wi Fi module uses the single stream n mode with 20MHz bandwidth and is capable of up to 72 2 Mb s over the air in n mode Encryption Encryption is a method of scrambling a message that ma
26. cessaire l tablissement d une communication satisfaisante XBee Wi Fi RF Module S6B User Guide 139 Australia C Tick Australia C Tick These modules comply with requirements to be used in end products in Australia All products with EMC and radio communications must have a registered C Tick mark Registration to use the compliance mark will only be accepted from Australian manufacturers or importers or their agent in Australia In order to have a C Tick mark on an end product a company must comply with a or b below a have a company presence in Australia b have a company distributor agent in Australia that will sponsor the importing of the end product Contact Digi for questions related to locating a contact in Australia Brazil ANATEL These modules comply with Brazil ANATEL standards in Resolution No 506 The following information is required in the user manual for the product containing the radio and on the product containing the radio in Portuguese Anatel homologation number to be stamped on product label ANATEL 2672 13 1209 Anatel homologation label to be stamped on the user manual modelo Xbee S6B e modelo S6BSM Q ANATEL Ag ncia Nacional de Telecomunica es 2672 13 1209 ORO DK AR ANT 01 07899029304588 Resolution 506 warning to be stamped on the user manual Este equipamento opera em car ter secund rio isto n o tem direito a protec o contra interfer ncia prejudicia
27. get on a wireless network without an access point This is called an Ad Hoc or IBSS Independent Basic Service Set network Note Ad hoc networks are point to point there can only be two nodes in the network a creator an a joiner Set up the creator first and then the joiner Ad hoc creator Set up the following parameters for the creator AH designates the node as an Ad hoc creator MAI specifies static IP addresses No DHCP is supported in Ad Hoc mode EEOspecifies no security Security is not available in Ad Hoc mode CHmay be any channel from 1 to OxB ID sets the SSID which is any string of choice as long as it isn t the same as another SSID in the vicinity MY sets IP address of creator node DLspecifies IP address of joiner node MK sets IP mask for both of the above addresses Ad hoc joiner Set up the following parameters for the joiner AHO designates the node as an Ad hoc joiner MA1 specifies static IP addresses No DHCP is supported in Ad Hoc mode EEOspecifies no security Security is not available in Ad Hoc mode ID sets the SSID which must match the ID of the creator Problems arise if it matches the SSID of an access point in the vicinity MY sets IP address of joiner node DLspecifies IP address of creator node MK sets IP mask for both of the above addresses Network basics Clients will need to join the wireless network before they can send data across it This is
28. keep up with transmitting an 1 0 sample more often than every three milliseconds Therefore when IR is set to 1 or 2 many samples are lost When Device Cloud is enabled see Networking Commands on page 108 samples are sent as a data stream See Device Cloud support on page 59 to learn how to view the data streams When DO bits 0 and 3 are both set 0x09 I O samples are sent to the Device Cloud and to DL When Device Cloud is not enabled the I O sample is sent to the address specified by the DL command When DL points to another XBee module that module must have API mode enabled Otherwise the data will be dropped by the receiving module and not sent out the serial port When DL points to a network client the I O sample is sent to that network client See XBee IP services on page 41 for the format of I O samples sent to a network client IR can be used with sleep A module will transmit periodic I O samples at the IR rate until the module resumes sleeping Even if the IR rate is set longer than the ST defined wake time at least one I O sample will still be sent before the module returns to sleep because it sends one immediately upon wake up If it is not desired that a sample is sent every wake cycle the IF command can be used to configure how many wake cycles should elapse before sending I O samples at the IR rate Change detection sampling Modules can be configured to transmit a data sample immediately whenever a monitored digital I
29. local serial port transmitted to a remote XBee module or sent to Device Cloud There are three ways to obtain I O samples either locally or remotely Queried Sampling Periodic Sampling Change Detection Sampling IO sample data is formatted as shown in the table below Bytes Name Description 1 Sample Sets Number of sample sets in the packet Always set to 1 2 Digital Channel mask Digital IO line on the module bit 0 DIOO bit 1 DIO1 bit 2 DIO2 bit 3 DIO3 bit 4 DIO4 bit 5 DIO5 bit 6 DIO6 bit 7 DIO7 bit 8 DIO8 bit 9 DIO9 bit 10 DIO10 bit 11 DIO11 bit 12 DIO12 For example a digital channel mask of 0x002F means DIOO 1 2 3 and 5 are enabled as digital IO XBee Wi Fi RF Module S6B User Guide 56 1 0 sampling Bytes Name Description 1 Analog Channel Mask Indicates which lines have analog inputs enabled for sampling Each bit in the analog channel mask corresponds to one analog input channel bit 0 ADO bit 1 AD1 bit 2 AD2 bit 3 AD3 Variable Sampled Data Set If any digital IO lines are enabled the first two bytes of the data set indicate the state of all enabled digital IO Only digital channels that are enabled in the Digital Channel Mask bytes have any meaning in the sample set If no digital IO is enabled on the module these 2 bytes will be omitted Following the digital IO data if any each enabled analog channel will return 2 bytes The data s
30. module automatically exits AT Command Mode and returns to Idle Mode This time period can be up to ten minutes AT command options Parameter range 2 0x1770 x 100 ms Default 0x64 100d CN Exit Command Mode Explicitly exit the module from AT Command Mode Note Whether command mode is exited using the CN command or by CT timing out changes are applied upon exit GT Guard Times Set the required period of silence before and after the Command Sequence Characters of the AT Command Mode Sequence GT CC GT The period of silence is used to prevent inadvertent entrance into AT Command Mode 2 0x0576 x 1 ms max of 1 4 seconds Ox3E8 1000d CC Command Mode Character Set read the command mode character used between guard times of the AT Command Mode Sequence GT CC CC CC GT This sequence allows the module to enter into AT Command Mode Sleep commands AT command SM Name and description Sleep Mode Sets the sleep mode on the RF module Sleep mode is also affected by the SO command option bit 6 See Sleep on page 50 for a full explanation of the various sleep modes 0 OxFF Parameter range 0 No sleep 1 Pin sleep 4 Cyclic sleep 5 Cyclic sleep pin wake Ox2B ASCII Default SP Sleep Period This value determines how long the module will sleep at a time up to 24 hours or 86 400 seconds This corresponds to 0x83d600 in
31. oer Pla ess 0 ibid XBee Wi Fi RF Module S6B User Guide 16 XBee Wi Fi module specifications Surface Mount version TOP VIEW SIDE VIEW BOTTOM VIEW 0 19 m PIN 37 Y l PIN 1 E 000 N E 2 S _ i 8 e Lj O o 0 18 to t l5 2 0 04 Y 0 06 0 16 Pin signals Pin assignment for the XBee Wi Fi Through hole module Low asserted signals are distinguished with a lower case n before the signal name Pin amp Name Direction Default state Description 1 VCC Power Supply 2 DIO13 DOUT Both Output UART Data out 3 DIO14 DIN nCONFIG Both Input UART Data In 4 DIO12 SPI MISO Both Disabled GPIO SPI slave out 5 nRESET Input Input Module Reset 6 DIO10 RSSI PWM Both Output RX signal strength PWMO indicator GPIO 7 DIO11 PWM1 Both Disabled GPIO 8 reserved Do Not Connect 9 DIO8 nDTR Both Input Pin Sleep Control line SLEEP_RQ GPIO 10 GND Ground 11 DIO4 SPI_MOSI Both Disabled GPIO SPI slave In XBee Wi Fi RF Module S6B User Guide 17 XBee Wi Fi module specifications Pin Name Direction Default state Description 12 DIO7 nCTS Both Output Clear to Send Flow Control GPIO 13 DIO9 ON_nSLEEP Both Output Module Status Indicator GPIO 14 VREF Not connected 15 DIOS ASSOCIATE Both Output Associate Indicator GPIO 16 DIO6 nRTS Both Inp
32. one or more of the following measures Re orient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect equipment and receiver to outlets on different circuits or Consult the dealer or an experienced radio TV technician for help FCC Approved Antennas 2 4 GHz The XBee Wi Fi Module can be installed utilizing antennas and cables constructed with non standard connectors RPSMA RPTNC etc An adapter cable may be necessary to attach the XBee connector to the antenna connector The modules are FCC approved for fixed base station and mobile applications If the antenna is mounted at least 20cm 8 in from nearby persons the application is considered a mobile application Antennas not listed in the table must be tested to comply with FCC Section 15 203 Unique Antenna Connectors and Section 15 247 Emissions XBee Wi Fi RF Modules have been approved for use with all the antennas listed in the tables below Cable loss is required when using gain antennas as shown below Digi does not carry all of these antenna variants Contact Digi Sales for available antennas Antennas approved for use with the XBee Wi Fi Through hole Module Integrated antennas Minimum cable loss power reduction attenuation required Part Type Min Number Description Gain Application Separation b mode g mode n mode 29000294 Integral PCB 0 5 dBi Fixed 20 cm N A N A N A antenna Mobile A2
33. only operates in API mode it will assert SPI nATTN and send out a modem status indicator after initialization The host can use this to know when the radio is ready to operate as a SPI slave Since the function of SPI nATTN is to indicate when the XBee has data to send to the host it may legitimately be driven high or low while the module is awake When using the SPI either SleepRq or SPI nSSEL may be used for pin sleep If D8 is configured as a peripheral 1 then it will be used for pin sleep If not and SPI nSSEL is configured as a peripheral which it must be to enable SPI operation then SPI nSSEL is used for pin sleep Using SPI nSSEL for pin sleep has the advantage of requiring one less physical pin connection to implement pin sleep on SPI It has the disadvantage of putting the radio to sleep whenever the SPI master negates SPI nSSEL even if that wasn t the intent Therefore if the user can control SPI nSSEL whether or not data needs to be transmitted then sharing the pin may be a good option It makes the SleepRq pin available for another purpose or it simply requires one less pin to the SPI interface Sleep options AP associated sleep This option allows the module to sync up with beacons sent from the AP which contains the DTIM Delivery Traffic Indication Message The DTIM indicates when broadcast and multicast data will be sent on the network This property is configured on the AP and is typically configured as the number o
34. read RF Module parameters the module must first enter into Command Mode a state in which incoming serial characters are interpreted as commands See AP operation on page 74 for an alternate means of configuring modules which is the only method available for SPI mode Command Mode is unavailable when using the SPI interface XBee Wi Fi RF Module S6B User Guide 33 Modes of operation AT command mode To enter AT Command mode send the 3 character command sequence and observe guard times before and after the command characters Refer to the Default AT Command Mode Sequence below Default AT Command Mode Sequence for transition to Command Mode No characters sent for one second GT Guard Times parameter 0x3E8 Input three plus characters within one second CC Command Sequence Character parameter Ox2B No characters sent for one second GT Guard Times parameter 0x3E8 Once the AT command mode sequence has been issued the module sends an OK r out the UART The OK r characters can be delayed if the module has not finished transmitting received serial data When command mode has been entered the command mode timer is started CT command and the module is able to receive AT commands on the UART All of the parameter values in the sequence can be modified to reflect user preferences Note Failure to enter AT Command Mode is most commonly due to baud rate mismatch By default the BD
35. reset the module Rather than coming up in transparent mode which is normal it will come up in command mode and issue the OK prompt with the following default parameters applied for operation while in command mode UART enabled P371 P4 1 only set for SPl enabled modules 9600 baud rate BD 3 One stop bit SB 0 No parity NB 0 Three character times with no change on DIN before transmission RO 3 No RTS flow control D6 0 CTS flow control D7 1 65 characters left in transmission buffer before CTS is turned off FT is used for command mode character CC 0x2b One second guard time GT 0x3e8 Ten second command mode timeout CT 0x64 If the configuration mode is left without setting any parameters i e without changing parameter values then all parameters will revert to their previous unknown state after exiting command mode Also any values queried will return the previously written settings rather than the temporarily applied default settings described above When the need arises to recover from an unknown configuration to a known configuration the user should do the following 1 Set up the interface to the XBee to match the default configuration as described above XBee Wi Fi RF Module S6B User Guide 35 Modes of operation 2 Pressand hold DIN low while resetting the XBee module Release DIN let it be pulled high so that UART data may be received 4 Atthe OK prompt enter the desir
36. set then the corresponding bit in the IO command is enabled If itis clear then that same bit has no effect in the IO command 0 to Ox7fff on TH O to Oxfffff on SMT Ox7fff on TH Oxfffff on SMT TO Set time to hold DIOO Sets how long an output level programmed by bit 0 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description XBee Wi Fi RF Module S6B User Guide 0 0x1770 x 100 ms 117 AT command T1 Name and description Set time to hold DIO1 Sets how long an output level programmed by bit 1 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description Parameter range 0 0x1770 x 100 ms Output Control Default T2 Set time to hold DIO2 Sets how long an output level programmed by bit 2 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description 0 0x1770 x 100 ms T3 Set time to hold DIO3 Sets how long an output level programmed by bit 3 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description 0 0x1770 x 100 ms T4 Set time to hold DIO4 Sets how long an output level programmed by bit 4 of the
37. the module footprint s 0 060 pad width Using a trace wider than the pad width is not recommended and using a very narrow trace under 0 010 can cause unwanted RF loss The length of the trace is minimized by placing the RPSMA jack close to the module All of the grounds on the jack and the module are connected to the ground planes directly or through closely placed vias Any ground fill on the top layer should be spaced at least twice the distance d in this case at least 0 050 from the microstrip to minimize their interaction Implementing these design suggestions will help ensure that the RF Pad module performs to its specifications XBee Wi Fi RF Module S6B User Guide 24 XBee Wi Fi module specifications PCB layer 1 of RF pad layout example Maintaina distance of at least 2d between microstrip and ground fill Module pin 36 PCB layer 2 of RF pad layout example Use multiple vias to put a solid ground plane under RF trace help eliminate to achieve desired impedance ground variations XBee Wi Fi RF Module S6B User Guide 25 XBee Wi Fi module specifications Mounting considerations XBee Wi Fi Through hole XBee Through hole modules were designed to mount into a receptacle socket and therefore do not require any soldering when mounting to a board XBee interface boards provided in XBee Wi Fi Development Kits have two ten pin receptacles for connecting the module The receptacles used on Digi development boar
38. the TCP socket to the Device Cloud is connected The values defined for DI are as follows 0 connected to the Device Cloud 1 Configured but not yet associated to AP 2 Associated to AP but not yet connected to the Device Cloud 3 Disconnecting from the Device Cloud 4 Not configured to connect to the Device Cloud When Dl is either 2 or 3 the Associate LED has a different blink pattern that looks like this np wd Where the low signal means LED off and the high signal means LED on The normal association LED signal alternates evenly between high and low as shown below 1 4 IX d General purpose flash memory The XBee Wi Fi RF modules provide 160 4096 byte blocks of flash memory which can be read and written by the user application This memory provides a non volatile data storage area which can be used for a multitude of purposes Some common uses of this data storage include storing logged sensor data buffering firmware upgrade data for a host microcontroller or storing and retrieving data tables needed for calculations performed by a host microcontroller The General Purpose Memory GPM is also used to store a firmware upgrade file for over the air firmware upgrades of the XBee module itself Accessing general purpose flash memory The GPM of a target node can be accessed from the XBee serial port or from a non XBee network client Serial port access is done by sending explicit API frames to the MEM
39. the host PCB be sure to account for the module dimensions as shown in the mechanical drawings section See Manufacturing information for surface mount XBee on page 141 for recommended footprints and required keepout areas Use good design practices when connecting Power and Ground making those traces wide enough to comfortably support the maximum currents or using planes if possible In addition to mechanical considerations care should be taken in the choice of antenna and antenna location Most antennas radiate perpendicular to the direction they point Thus a vertical antenna emits across the horizon Metal objects near internal or external antennas may cause reflections and reduce the antenna s ability to radiate efficiently Antennas should reside above or away from any metal objects including batteries tall electrolytic capacitors or metal enclosures If using a metal enclosure the antenna should be located externally using an integral antenna in a metal enclosure will greatly reduce the range Range may also be affected by metal objects between transmitting and receiving antennas Some objects that are often overlooked are metal poles metal studs or beams in structures concrete it is usually reinforced with metal rods metal enclosures vehicles elevators ventilation ducts refrigerators and microwave ovens Design notes for PCB antenna modules XBee modules with an embedded PCB antenna should not have any ground planes or metal obj
40. 0 Reserved Do Not Connect 21 Reserved Do Not Connect 22 GND Ground 23 Reserved Do Not Connect 24 DIO4 Both Disabled GPIO 25 DIO7 nCTS Both Output Clear to Send Flow Control GPIO 26 DIO9 On nSLEEP Both Output Module Status Indicator GPIO 27 VREF Not connected 28 DIO5 ASSOC Both Output Associate Indicator GPIO 29 DIO6 nRTS Both Input Request to Send Flow Control GPIO 30 DIO3 AD3 Both Disabled Analog Input GPIO Pin Name Direction Default State Description 31 DIO2 AD2 Both Disabled Analog Input GPIO 32 DIO1 AD1 Both Disabled Analog Input GPIO 33 DIOO ADO CB Both Disabled Analog Input Commissioning Button GPIO 34 Reserved Do Not Connect 35 GND XBee Wi Fi RF Module S6B User Guide Ground 19 XBee Wi Fi module specifications Pin Name Direction Default state Description 36 RF Both RF IO for RF Pad Variant 37 Reserved Do Not Connect Design notes XBee modules are designed to be self sufficient and do not specifically require any external circuitry other than the recommended pin connections described below The following sections discuss general design guidelines that are recommended for help in troubleshooting and building a robust design Power supply Poor power supply can lead to poor radio performance especially if the supply voltage is not kept within tolerance or is excessively noisy To help reduce noise 1uF and 8 2pF capacitors are recom
41. 00 If the sample set includes any digital IO lines Digital Samples LSB19 0x00 Channel Mask 0 these two bytes contain if samples for all enabled digital IO lines DIO lines included that do not have sampling enabled return 0 The bits in these 2 bytes map the same as they do in the Digital Channels Mask field In this example DIO8 has value 0 Analog MSB 20 0x03 If the sample set includes any analog input lines Sample LSB 21 OxB5 Analog Channel Mask 0 each enabled analog input returns a 2 byte value indicating the A D measurement of that input Analog samples are ordered sequentially from DIOO ADO to DIO3 AD3 Checksum 22 0x38 OxFF 8 bit sum of bytes from offset 3 to this byte XBee Wi Fi RF Module S6B User Guide qc Foner wil bl 12 O11 O10 Em m iml un wn Fa m 07 O6 DIO5 03 02 O1 O0 96 ZigBee receive packet Frame Type 0x90 API frames This frame type is used by XBee when RF data is received using the XBee application service and AO is set to 0 It is not generally used but it allows for software compatibility with other XBee modules if desired An example of this frame type is given below Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB 1 0x00 Number of bytes between the length and the checksum LSB 2 0x11 API frame API frame 3 0x90 specific identifier data 64 bit 4 0x00 Align IP address to low 32 bits of the fie
42. 0x26 Same value as the CO command destination LSB9 0x16 port XBee Wi Fi RF Module S6B User Guide 100 API frames Frame fields Offset Example Description API frame 16 bit MSB 0x26 specific source port 10 data LSB 11 0x16 Protocol MSB 0x00 0 UDP 1 TCP Protocol use for the transmitted 12 data Status 13 0x00 Reserved RF data 14 0x48 H Up to 1400 bytes of data This is 8 bytes more than c the max size reported by NP command because no 15 0x65 e SUN application header is needed 16 Ox6C l 17 Ox6C I 18 Ox6F o Checksum 19 0x13 OxFF minus the 8 bit sum of bytes from offset 3 to this byte Send data response Frame Type OxB8 This frame type is sent out the serial port in response to the send data request providing its frame ID is non zero Frame fields Offset Example Description Start 0 Ox7E Delimiter Length 1 2 0x0003 Number of bytes between the length and the checksum API frame APIframe 3 OxB8 specific identifier data Frame ID 4 0x55 Identifies the frame ID of the corresponding send data request Status 5 0x00 0x00 Success 0x01 Bad Request 0x02 Response unavailable 0x03 Device Cloud Error 0x40 Unknown Error Checksum 6 OxF2 OxFF minus 8 bit sum of bytes 3 5 of this frame XBee Wi Fi RF Module S6B User Guide 101 Device request Frame Type OxB9 API frames This frame type is sent out the serial port when the XBee m
43. 13 DOUT 3 P3 0 1 1 DIO14 DIN nCONFIG 4 PA 0 1 1 DIO15 SPI MISO 17 P5 0 1 4 5 1 DIO16 SPI MOSI 16 P6 0 1 4 5 1 DIO17 SPI nSSEL 15 P7 0 1 4 5 1 DIO18 SPI CLK 14 P8 0 1 4 5 1 DIO19 SPI nATTN 12 P9 0 1 4 6 1 I O configuration To enable an analog or digital I O function on one or more XBee module pin s the appropriate configuration command must be issued with the correct parameter After issuing the configuration command changes must be applied on the module for the I O settings to take effect Pull up down resistors can be set for each digital input line using the PR command The PR value enables or disables the pull up down resistors and the PD command determines if a pull up or pull down is used Note that internal pull up down resistors are not available for digital output pins analog input pins or for disabled pins See XBee command reference on page 105 for information on these commands Pin command parameter Description 0 Disabled 1 Peripheral control XBee Wi Fi RF Module S6B User Guide 55 1 0 sampling Pin command parameter Description Analog input or PWM output Data in monitored Data out default low Data out default High RS485 enable low RS485 enable high 27 Unsupported NO Ww A WUN I O sampling The XBee modules have the ability to monitor and sample the analog and digital I O lines I O samples indicate the current state of I O lines These samples may be output on the
44. 4 QI Monopole 1 5 dBi Fixed 20 cm N A N A N A Integrated Mobile Whip XBee Wi Fi RF Module S6B User Guide 129 Dipole antennas United States FCC Minimum cable loss power reduction attenuation required Part Type Min Number Description Gain Application Separation b mode g mode n mode A24 Dipole Half 2 1 dBi Fixed 20 cm N A N A N A HASM wave Mobile 450 articulated RPSMA 4 5 A24 Dipole 2 1 dBi Fixed 20 cm N A N A N A HABSM Articulated RPSMA A24 Dipole Half 2 1 dBi Fixed 20 cm N A N A N A HABUF wave P5I bulkhead mount U FL s 5 pigtail A24 Dipole Half 2 1 dBi Fixed 20 cm N A N A N A HASM wave Mobile 525 articulated RPSMA 5 25 Omni directional antennas Minimum cable loss power reduction attenuation required Part Type Min number Description Gain Application separation b mode g mode n mode A24 F2NF Omni 2 1 dBi Fixed 20 cm N A N A N A Directional Mobile Fiberglass base station A24 F3NF Omni 3 0 dBi Fixed 20 cm N A N A N A Directional Mobile Fiberglass base station A24 F5NF Omni 5 0 dBi Fixed 20 cm N A N A N A Directional Fiberglass base station A24 F8NF Omni 8 0 dBi Fixed 2m N A 0 4 dB 0 4 dB Directional Fiberglass base station XBee Wi Fi RF Module S6B User Guide 130 United States FCC Omni directional antennas Minimum cable loss power reduc
45. 42 Packet ID 4 0x00 Reserved for later use 0 for now Encryption 5 0x00 pad Command ID 6 0x00 Indicates transmission data Command 7 0x02 Request acknowledgment options Command Serial data 8 0x48 H Can be up to 1492 bytes Data will be specific data sent out the XBee s serial port 9 0x65 e 10 Ox6C I 11 Ox6C I 12 Ox6F o XBee Wi Fi RF Module S6B User Guide 45 Local host Serial data command acknowledgment if requested Packet fields Offset Example Description Application Number1 0 0x4242 Header Number2 2 0x0000 Number1 Number2 0x4242 Packet ID 4 0x00 Reserved for later use 0 for now Encryption 5 0x00 Pad Command ID 6 0x80 Indicates data acknowledgment Command 7 0x0 Options not available for this response Options Command Serial Data 8 No command specific data Specific Data Receiving I O sampled data Sample data generated by the module will be sent to the address configured by the DL commands This data can be sent to another XBee or to a network client It will be sent using UDP from the OxBEE port as with other XBee Application services Sample data will be received by the client as follows Frame fields Offset Example Description Application Number1 0 0x4242 header Number2 2 0x0000 Number1 Number2 0x4242 Packet ID 4 0x00 Reserved for later use 0 for now Encryption 5 0x00 pad Command 6 0x04 Indicates I O sample dat
46. 5 seconds to send back a device response if the device request ID is non zero Failure to do so will cause the XBee module to send a timeout response back to Device Cloud After the host sends a device response the XBee module will send back a device response status Note that the time the host needs to wait for the device response status will potentially increase significantly in future releases See API operation XBee Wi Fi RF Module S6B User Guide 60 1 0 sampling on page 74 for information about formats of the device request the device response and device response status Two identifiers in these three frames are used to correlate the messages together The device request ID identifies the device request and the frame ID identifies the device response The host should read the device request ID when it is received on the serial port If the device request ID is non zero it should generate a device response containing that same device request ID A mismatch will cause an error In addition to the device request ID the device response that the host generates should contain a frame ID A frame ID of 0 instructs the XBee module not to send a device response status A non zero frame ID is a request for a device response status which will include the designated frame ID Therefore a device request will contain a device request ID a device response will contain a device request ID and a frame ID and a device response status will contain only a f
47. 7 DIO17 Configuration Select Read function 1 SPL nSSEL for the DIO17 line of the RF module 4 Digital output default low 5 Digital output default high 0 Disabled pg DIO18 Configuration Select Read function 1 SPI CLK for the DIO18 line of the RF module XBee Wi Fi RF Module S6B User Guide 4 Digital output default low 5 Digital output default high 113 AT command pos Name and description DIO19 Configuration Select Read function for the DIO19 line of the RF module Parameter range 0 Disabled 1 SPI nATTN 4 Digital output default low 5 Digital output default high 6 UART data present indicator I O settings Default DO DIOO ADO CB Configuration Select Read function for DIOO ADO CB 0 Disabled 1 Commissioning Button 2 Analog input 3 Digital input monitored 4 Digital output default low 5 Digital output default high D1 DIO1 AD1 Configuration Select Read function for DIO1 AD1 0 Disabled 1 SPI nATTN 2 Analog input 3 Digital input monitored 4 Digital output default low 5 Digital output default high D2 DIO2 AD2 Configuration Select Read function for DIO2 AD2 0 Disabled 1 SPI _CLK 2 Analog input 3 Digital input monitored 4 Digital output default low 5 Digital output default high D3 DIO3 ADS Configuration Select Read function for DIO3 AD3 XBee Wi Fi RF Module S6
48. B User Guide 0 Disabled 1 SPI Slave Select 2 Analog input 3 Digital input monitored 4 Digital output default low 5 Digital output default high 114 I O settings AT command Name and description Parameter range Default 0 Disabled 1 SPI MOSI DA AER Configuration Select Read function for 3 Digital input monitored 0 4 Digital output default low 5 Digital output default high 0 Disabled 1 Associated LED D5 ee Configuration Select Read function for 3 Digital input 1 4 Digital output default low 5 Digital output default high 0 Disabled 1 SleepRq D8 Configuration Select Read function for 3 Digital input monitored 1 4 Digital output default low 5 Digital output default high 0 Disabled 1 On Sleep indicator D9 PIOS Configuration Select Read function for 3 Digital input monitored 1 4 Digital output default low 5 Digital output default high Assoc LED Blink Time Set Read the Associate LED blink time If the Associate LED functionality is enabled D5 command this LT value determines the on and off blink times 0 0x14 OxFF 200 2550 ms 0 for the LED when the module has joined a network If LT 0 the default blink rate of 250ms is used For all other LT values LT is measured in 10ms XBee Wi Fi RF Module S6B User Guide 115 1 0 settings AT command Name and description Parameter range Default Pull up Resistor
49. C105 00 CO 04 00 0016 0000 GOOF 3B Assuming all transmissions were successful and that flash block 22 was previously written with incrementing data the following API packets would be output the source node s serial interface 7E 0007 8B 01 FFFE 00 00 00 76 TE 0029 91 0013A200407402AC FFFE E6 E6 0023 C105 C1 84 00 0016 0000 QOF 0102030405060708090A0B0CODOEOF C3 FIRMWARE VERIFY 0x05 and FIRMWARE VERIFY AND INSTALL 0x06 The FIRMWARE VERIFY and FIRMWARE VERIFY AND INSTALL commands are used when remotely updating firmware on a module Remote firmware upgrades are covered in detail in the next section These commands check if the General Purpose Memory contains a valid over the air update file For the FIRMWARE VERIFY AND INSTALL command if the GPM contains a valid firmware image then the module will reset and begin using the new firmware Field name Command specific description GPM CMD ID Should be set to FIRMWARE VERIFY 0x05 or FIRMWARE VERIFY AND INSTALL 0x06 GPM OPTIONS There are currently no options defined for this command Set this field to 0 GPM_BLOCK_NUM These fields are unused for this command Set to 0 GPM_START_INDEX GPM_NUM_BYTES GPM_DATA This field is unused for this command FIRMWARE_VERIFY _RESPONSE 0x85 When a FIRMWARE VERIFY command request has been unicast to a node that node will send a response in the following format to the source endpoint specified in the requesting frame
50. D g 8 5 A EM Ic A ED CD eg I R E5 G LD ID Y f 0 158 The solder footprint should be matched to the copper pads but may need to be adjusted depending on the specific needs of assembly and product standards While the underside of the module is mostly coated with solder resist it is recommended that the copper layer directly below the module be left open to avoid unintended contacts Copper or vias must not interfere with the three exposed RF test points on the bottom of the module see below Furthermore these modules have a ground plane in the middle on the back side for shielding purposes which can be affected by copper traces directly below the module XBee Wi Fi RF Module S6B User Guide 142 Reworking Common footprint for Through hole and Surface Mount Digi has designed a common footprint which will allow either module to be attached to a PCB The layout is shown below The round holes in the diagram are for the Through hole version and the semi oval pads are for the Surface Mount version Note that pin 1 of the Through hole version connects with pin 2 of the Surface Mount By using the shown diagonal traces to connect the pins the layout will work for both modules Flux and cleaning Kk ah AAA 3Y d I ul c so o _ gg 8 9285 6 1 Z 2 Y PO 8 A 0 112 Y Y Y Igeeggeaae s Y 0 046 A Le m 0958 Lec 1 060
51. E 39 57mm 1558Thou ies Dom SE RRS NN Ste Preferred Edge of PCB D MMM S f When possible keep XBee close RSS to edge of board RRQRRRG 2 SRR 2S RS P Ree 120 0Thou 3 0mm 25 8mm 1014Thou The antenna performance Improves with a larger keepout area H Notes 1 Non Metal enclosures are recommended For metal enclosures an external antenna should be used 2 Metal chassis or mounting structures in the keepout area should be at least 1 inch 2 54 cm away from antenna 3 Maximize distance between antenna and metal objects that might be mounted in keepout area 4 XBee should be fully contained on PCB i e it should not protrude past board edge 5 These keepout area guidelines do not apply for Wire Whip antennas or external RF connectors Wire Whip antennas radiate best over the center of a ground plane K REV ECO DESCRIPTION OF CHANGE BY CKD APPR DATE TITLE APPROVALS DATE Keepout Area for DESIGNED Embedded PCB Antenna DRAWN Surface Mount XBee CHECKED ENGINEER PART NO REV Digi Intemational Inc 1 2 3 4 All rights reserved DO NOT SCALE DRAWING SHEET 1 of 1 XBee Wi Fi RF Module S6B User Guide 23 XBee Wi Fi module specifications Design notes for RF pad The RF Pad is a soldered antenna connection The RF signal travels from pin 36 on the module to the antenna through an RF trace transmission line on
52. Field name Command specific description GPM CMD ID Should be set to FIRMWARE VERIFY RESPONSE 0x85 GPM OPTIONS A 1 in the least significant bit indicates the GPM does not contain a valid firmware image A 0 in the least significant bit indicates the GPM does contain a valid firmware image All other bits are reserved at this time GPM BLOCK NUM These fields are unused for this command Set to 0 GPM START INDEX GPM NUM BYTES GPM DATA This field is unused for this command XBee Wi Fi RF Module S6B User Guide 70 1 0 sampling FIRMWARE VERIFY AND INSTALL RESPONSE 0x86 When a FIRMWARE VERIFY AND INSTALL command request has been unicast to a node that node will send a response in the following format to the source endpoint specified in the requesting frame only if the GPM memory does not contain a valid image If the image is valid the module will reset and begin using the new firmware Field name Command specific description GPM CMD ID Should be set to FIRMWARE VERIFY AND INSTALL RESPONSE 0x86 GPM OPTIONS A 1 in the least significant bit indicates the GPM does not contain a valid firmware image All other bits are reserved at this time GPM BLOCK NUM These fields are unused for this command Set to O GPM START INDEX GPM NUM BYTES GPM DATA This field is unused for this command Example To verify a firmware image previously loaded into the GPM on a target radio with serial number of
53. Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB1 0x00 Number of bytes between the length and checksum LSB 2 Ox1C API frame API frame 3 0x11 specific identifier data Frame ID 4 0x01 Correlates request with a later TX STATUS frame 0x8B If 0 no TX STATUS frame will be sent 64 bit 5 0x00 Align IP address to low 32 bits of the field The source other bytes are set to 0 IP address is in hex This address 6 0x00 example uses address 192 168 1 130 A MAC address may also be in the lower 6 bytes of this field But if the MAC address doesn t match the module s own MAC address then this field will be interpreted as an IP address as described above XBee Wi Fi RF Module S6B User Guide 84 API frames Frame fields Offset Example Description API frame 64 bit 7 0x00 specific source data address 8 0x00 9 OxCO 10 OxA8 11 0x01 12 0x82 Reserved 13 OxFF Unused placeholders 14 OxFE 15 OxE6 Destination 16 OxE6 Digi Device Object endpoint Cluster ID 17 0x00 Memory Access Cluster ID 18 0x23 Reserved 19 OxC1 Unused placeholders 20 0x05 21 0x00 Options 22 0x00 0x01 Disable ACK All other bits must be set to 0 RF data 23 0x00 Up to 1392 bytes of data 24 0x00 25 0x00 26 0x00 27 0x00 28 0x00 29 0x00 30 0x00 Checksum 31 0x50 Add this value to sum of bytes from byte 3 to here such that result Oxff XBee Wi F
54. M NUM BYTES Set to the number of data bytes to be read Only one GPM block can be operated on per command For this reason GPM START INDEX GPM NUM BYTES cannot be greater than the GPM block size It is also important to remember that the number of bytes sent in an explicit API frame including the GPM command fields cannot exceed the maximum payload size of the radio The maximum payload size can be queried with the NP AT command GPM DATA READ RESPONSE 0x84 No data bytes should be specified for this command When a READ command request has been unicast to a node that node will send a response in the following format to the source endpoint specified in the requesting frame Field name Command specific description GPM CMD ID Should be set to READ RESPONSE 0x84 GPM STATUS A 1 in the least significant bit indicates an error occurred All other bits are reserved at this time GPM BLOCK NUM GPM START INDEX Matches the parameter passed in the request frame GPM NUM BYTES The number of bytes in the GPM DATA field GPM DATA XBee Wi Fi RF Module S6B User Guide The bytes read from the GPM block specified 69 1 0 sampling Example To read 15 bytes of previously written data from flash block 22 of a target radio with serial number of 0x0013a200407402ac a READ packet should be formatted as follows spaces added to delineate fields 7E 001C 11 01 0013A200407402AC FFFE E6 E6 0023
55. Number of bytes between the length and the checksum LSB 2 0x13 API frame API frame 3 0x10 specific data identifier Frame ID 4 0x01 Correlates request with a later TX STATUS frame 0x8B If 0 no TX STATUS frame will be sent 64 bit source 5 0x00 Align IP address to low 32 bits of the address field The other bytes set to O IP 6 0x00 address is in hex The example uses 7 0x00 address 192 168 0 130 A MAC address may also be in the 8 Ox00 lower 6 bytes of this field But if the 9 OxCO MAC address doesn t match the i module s own MAC address then this 10 OxA8 field will be interpreted as an IP address as described above 11 0x01 12 0x82 XBee Wi Fi RF Module S6B User Guide 85 API frames Frame fields Offset Example Description API frame Reserved 13 OxFF Unused placeholders specific data 14 OxFE 15 0x00 Options 16 0x00 0x01 Disable ACK All other bits must be set to 0 RF data 17 Ox48 H Up to 1392 bytes of data 18 0x65 e 19 Ox6C I 20 Ox6C I 21 Ox6F o Checksum 22 0x12 OxFF the 8 bit sum of bytes from Offset 3 to this byte ZigBee explicit transmit packet Frame Type 0x11 This frame type is provided for software compatibility with other XBee modules and for sending GPM requests If neither of these is required then frame type 0x20 is recommended for data transmissions from this module An example of a GPM request is given below
56. O pin changes state Change detect sampling cannot be triggered by an enabled analog input The IC command is a bitmask that can be used to set which digital 1 0 lines should be monitored for a state change If one or more bits in IC is set an I O sample will be transmitted as soon as a state change is observed in one of the monitored digital IO lines Change detection samples are transmitted to the IPv4 address specified by DL to Device Cloud or to both depending on the setting of the DO command Viewing I O samples on the remote XBee or Device Cloud is the same for change detect sampling as it is for periodic sampling Example Configure the following I O settings on the XBee Configure DIO1 AD1 as a digital input with pull up resistor enabled Configure DIO2 AD2 as an analog input Configure DIO4 as a digital output driving high XBee Wi Fi RF Module S6B User Guide 58 1 0 sampling To configure DIO1 AD1 as an input issue the ATD1 command with a parameter of 3 ATD13 To enable pull up resistors on the same pin the PR command should be issued with bit 3 set e g ATPR8 ATPR1FFF etc The ATD2 command should be issued with a parameter of 2 to enable the analog input ATD22 Finally DIO4 can be set as an output driving high by issuing the ATD4 command with a parameter value of 5 ATD45 After issuing these commands changes must be applied before the module I O pins will be updated to the new states The AC or CN commands can
57. ORY ACCESS cluster ID 0x23 on the DIGI DEVICE endpoint OxE6 of the target node Explicit API frames have frame identifier 0x11 for details see API operation on page 74 Access from a non XBee network client is done by sending UDP frames to the target node on port OxOBEE The payload begins with an application header followed by the GPM header described below See Network client on page 42R to learn how to format the application header XBee Wi Fi RF Module S6B User Guide 64 1 0 sampling The following header is used to generate a GPM command It should be used whether using serial port access or network client access For network client access an application header needs to precede the GPM header To keep things simple this section is written from the perspective of serial port access without the application header Do not forget to precede each frame with an application header if using a network client for GPM access Byte offset in Number of payload bytes Field name General field description 0 1 GPM CMD ID Specific GPM commands are described below 1 1 GPM_OPTIONS Command specific option 2 2 GPM BLOCK NUM The block number addressed in the GPM Ranges from 0 to 159 Ox9F 4 2 GPM START INDEX The byte index within the addressed GPM block 6 2 GPM NUM BYTES Then number of bytes in the GPM DATA field or in the case of a READ the number of bytes requested 8 Varies GPM DATA Multibyte paramete
58. Omni 7 2 dBi Fixed 2m N A N A N A W7NF Directional base station A24 Omni 7 2 dBi Fixed 2m N A N A N A M7NF directional Mag mount base station XBee Wi Fi RF Module S6B User Guide 154 Panel class antennas United States FCC Minimum cable loss power reduction attenuation required Part Type Min number _ Description Gain Application separation b mode g mode n mode A24 Flat Panel 8 5 dBi Fixed 2m N A 0 5 dB 0 9 dB P8SF A24 Flat Panel 8 5 dBi Fixed 3m N A 0 5 dB 0 9 dB P8NF A24 Flat Panel 13 dBi Fixed 4m 3 5dB 5 0 dB 5 5 dB P13NF A24 Flat Panel 14 dBi Fixed 5m 4 5dB 6 0 dB 6 5 dB P14NF A24 Flat Panel 15 dBi Fixed 2m 5 5gB 7 0 dB 7 5 dB P15NF A24 Flat Panel 16 dBi Fixed 2m 6 5dB 8 0 dB 8 5 dB P16NF A24 Flat Panel 19 dBi Fixed 2m 9 5dB 11 0 dB 11 5 dB 19NF Yagi class antennas Minimum cable loss power reduction attenuation required Part Type Min number Description Gain Application separation b mode g mode n mode A24 Yagi 6 8 8 dBi Fixed 2m N A 0 8 dB 1 2 dB Y6NF element A24 Yagi 7 9 0 dBi Fixed 2m N A 1 0 dB 1 5 dB Y7NF element A24 Yagi 9 10 0 dBi Fixed 2m 0 5 dB 2 0 dB 2 5 dB YONF element A24 Yagi 10 11 0 dBi Fixed 2m 1 5 dB 3 0 dB 3 5 dB Y10NF element A24 Yagi 12 12 0 dBi Fixed 2m 2 5 dB 4 0 dB 4 5 dB Y12NF element A24 Yagi 13 12 0 dBi Fixed 2m 2 5
59. PI examples Example Create an API AT command frame to configure an XBee baud rate to 230 400 set BD to 0x08 The frame should look like in hex 7E 00 05 08 01 42 44 08 68 Where 0x0005 length excluding checksum 0x08 AT Command API frame type 0x01 Frame ID set to non zero value for transmit status 0x4244 AT Command BD 0x08 value to set command to 0x68 Checksum The checksum is calculated as OxFF 0x08 0x01 0x42 0x44 0x08 Example Send a remote command to a module with the IP address 192 168 0 103 CO A8 00 67 to set DIO1 AD1 as a digital input D1 3 and apply changes to force the IO update The API remote command frame should look like in hex 7E 00 OE 07 01 00 00 00 00 CO A8 01 64 02 44 31 03 BO Where 0x000E length 14 bytes excluding checksum 0x07 Remote Command API frame type 0x01 Frame ID 0x00000000 C0A80067 Remote address Pad first 4 bytes with 00 0x02 Apply Changes Remote Command Options 0x4431 AT command D1 OxBO Checksum XBee Wi Fi RF Module S6B User Guide 77 API UART and SPI exchanges API UART and SPI exchanges AT commands The following image shows the API frame exchange that takes place at the UART or SPI when sending an AT command request to read or set a module parameter The response can be disabled by setting the frame ID to 0 in the request Transmitting and receiving RF data The following image shows the API exchanges th
60. a ID Command 7 0x00 Options not available for this response options Command Number of 8 0x01 Indicates one sample set specific data Samples Digital Mask MSB9 0x01 Bit Mask Each bit represents an enabled DIO line starting with DIOO at bit 0 LSB10 0x01 Analog Mask 11 0x02 Bit Mask Each bit represents an enabled ADC starting with ADCO at bit 0 This selects ADC1 for analog sampling XBee Wi Fi RF Module S6B User Guide 46 Local host Frame fields Offset Example Description Command Digital MSB 12 0x00 This field is only present if at least one DIO line specific data Sample is enabled in the digital mask specified above LSB 13 0x01 Each bit represents a DIO line Start with bit 0 for DIOO Analog MSB 14 0x02 0x200 indicates that reading is half of VREF For Sample LSB15 0x00 a default VREF of 2 5V 0x200 represents 1 25 volts on ADC1 in this example Sending over the air firmware upgrades A network client can also use the XBee IP services to send a firmware upgrade to the module This is done by sending a frame formatted with an application header followed by a GPM header following by GPM data The format of the application header is given above See Sleep on page 50 for details about GPM headers format options Make sure each GPM header is preceded by an application header The following table shows an example of the final step of a firmware upgrade process Serial communication service
61. a rates Standard Data rates Mb s 802 11b 1 2 5 5 11 802 11g 6 9 12 18 24 36 48 54 Standard MCS index Data rates Mb s 800 ns guard interval 400 ns guard interval 0 6 5 7 22 1 13 14 44 2 19 5 21 67 Bom 2 26 28 89 4 39 43 33 5 52 57 78 6 58 5 65 7 65 72 22 XBee Wi Fi RF Module S6B User Guide Receiver sensitivity XBee Wi Fi module specifications Receiver sensitivity 25 C 1096 PER Standard Data rate Sensitivity dBm 1 Mb s 93 802 11b ener id 5 5 Mb s 90 11 Mb s 87 6 Mb s 91 9 Mb s 89 12 Mb s 88 802 118 18 Mb s 86 24 Mb s 83 36 Mb s 80 48 Mb s 76 54 Mb s 74 MCS 0 6 5 7 22 Mb s 91 MCS 1 13 14 44 Mb s 88 MCS 2 19 5 21 67 85 Mb s 802 11n MCS 3 26 28 89 Mb s 82 MCS 4 39 43 33 Mb s 78 MCS 5 52 57 78 Mb s 74 MCS 6 58 5 65 Mb s 73 MCS 7 65 72 22 Mb s 71 XBee Wi Fi RF Module S6B User Guide 10 RF transmit power typical RF transmit power Average XBee Wi Fi module specifications Standard Data rate Power dBm 802 11b 1 Mb s 2 Mb s 5 5 Mb s 11 Mb s North America Europe Australia Japan 16 Brazil 13 802 11g 6 Mb s 9 Mb s 12 Mb s 18 Mb s 24 Mb s 36 Mb s 16 13 48 Mb s 54 Mb s 14 13 802 11n MCS 0 6 5 7 22 Mb s MCS 1 13 14 44 Mb s
62. ame Structure with escape control characters Ox7E MSB LSB APlI specific 1 Byte Structure Characters Escaped If Needed MSB Most Significant Byte LSB Least Significant Byte Escape characters When sending or receiving a UART data frame specific data values must be escaped flagged so they do not interfere with the data frame sequencing To escape an interfering data byte insert Ox7D and follow it with the byte to be escaped XOR with 0x20 Data bytes that need to be escaped Ox7E Frame Delimiter Ox D Escape 0x11 XON 0x13 XOFF Example Raw UART data frame before escaping interfering bytes Ox7E 0x00 0x02 0x23 0x11 OxCB 0x11 needs to be escaped which results in the following frame Ox7E 0x00 0x02 0x23 Ox7D 0x31 OxCB Note In the above example the length of the raw data excluding the checksum is 0x0002 and the checksum of the non escaped data excluding frame delimiter and length is calculated as OxFF 0x23 0x11 OxFF 0x34 OxCB Length The length field has a two byte value that specifies the number of bytes that will be contained in the frame data field It does not include the checksum field Framed data Frame data of the UART or SPI data frame forms an API specific structure as follows XBee Wi Fi RF Module S6B User Guide 75 API frame specifications UART or SPI data frame and API specific structure Ox7E MSB LSB API specific 1 Byte Structure m L ES C cmdID cmdData Th
63. applied Changes can be applied in one of the following ways The AC Apply Changes command is issued AT command mode is exited To exit AT command mode do one of the following Send the ATCN Exit Command Mode command followed by a carriage return If no valid AT Commands are received within the time specified by CT Command Mode Timeout Command the RF module automatically returns to Idle Mode For an example of programming the RF module using AT Commands and descriptions of each configurable parameter see XBee command reference on page 105 Configuration mode The user may not always know the parameters with which the XBee module is configured If those parameters affect the means by which command mode is entered and the parameters were previously written to non volatile memory then command mode is not available to either read the parameters or to set them to known values This makes configuration of the XBee difficult unless the user can successfully guess the configuration to allow entry into command mode A common example of this problem is when the UART baud rate is unknown In this case the sequence to enter command mode would not be recognized due to a baud rate mismatch preventing entry into command mode Forcing entry into configuration mode To overcome this issue the XBee may be forced into command mode with a known configuration as follows While holding DIN low a k a asserting the break key
64. ased encryption CCMP XBee Wi Fi RF Module S6B User Guide 145 2015 Digi International All rights reserved
65. at take place at the UART or SPI when sending RF data to another module The transmit status frame is always sent at the end of a data transmission unless the frame ID is set to 0 in the transmit request If the packet cannot be delivered to the destination the transmit status frame will indicate the cause of failure The received data frame 0x80 or OxBO is set by the AP command Transmit Request 0x00 or 0x20 Received Data 0xBO or 0x80 RF Data Transmit Status 0x89 Remote AT commands The following image shows the API frame exchanges that take place at the UART or SPI when sending a remote AT command A remote command response frame is not sent out the UART or SPI if the remote module does not receive the remote command Remote AT Command 0x07 Remote AT Command Response 0x87 XBee Wi Fi RF Module S6B User Guide 78 API frames Supporting the API Applications that support the API should make provisions to deal with new API frames that may be introduced in future releases For example a section of code on a host microprocessor that handles received serial API frames sent out the module s DOUT pin might look like this void XBee_HandleRxAPIFrame _apiFrameUnion xpapiFrame switch papiFrame gt api_id case RX_RF_DATA_FRAME process received RF data frame break case RX IO SAMPLE FRAME process IO sample frame break default Discard any other API frame types that are not being us
66. atches the parameter passed in the request frame GPM NUM BYTES The number of bytes in the GPM DATA field For this command this field will be set to O GPM DATA XBee Wi Fi RF Module S6B User Guide No data bytes should be specified for this command 68 Example 1 0 sampling To write 15 bytes of incrementing data to flash block 22 of a target radio with serial number of 0x0013a200407402ac a WRITE packet should be formatted as follows spaces added to delineate fields TE 002B 11 01 0013A200407402AC FFFE E6 E6 0023 C105 00 CO 02 00 0016 0000 000F 0102030405060708090A0B0CODOEOF C5 Assuming all transmissions were successful and that flash block 22 was previously erased the following API packets would be output the source node s serial interface 7E 0007 8B 01 FFFE 00 00 00 76 7E 001A 91 0013A200407402AC FFFE E6 E6 0023 C105 C1 82 00 0016 0000 0000 4C READ 0x04 The READ command can be used to read the specified number of bytes from the GPM location specified Data can be queried from only one GPM block per command Field name Command specific description GPM CMD ID Should be set to READ 0x04 GPM OPTIONS There are currently no options defined for this command Set this field to 0 GPM BLOCK NUM Set to the index of the GPM block that should be read Ranges from 0 to 159 Ox9F GPM START INDEX Set to the byte index within the GPM block where the given data should be read GP
67. ation Digi does not supply SPI communication option on the Device Development Evaluation Boards On the through hole modules SPI mode can be forced by holding DIO13 DOUT low while resetting the module until SPI nATTN asserts By this means the XBee Wi Fi module will disable the UART and go straight into SPI communication mode Once configuration is completed a modem status frame is queued by the module to the SPI port which will cause the SPI nATTN line to assert The host can use this to determine that the SPI port has been configured properly This method internally forces the configuration to provide full SPI support for the following parameters gt D1 Note This parameter will only be changed if it is at a default of zero when method is invoked D2 D3 D4 P2 As long as a WR command is not issued these configuration values will revert back to previous values after a power on reset If a WR command is issued while in SPI mode these same parameters will be written to flash After a reset parameters that were forced and then written to flash become the mode of operation If the UART is disabled and the SPI is enabled in the written configuration then the module will come up in SPI mode without forcing it by holding DOUT low If both the UART and the SPI are enabled at the time of reset then output will go to the UART until the host sends the first input If that first input comes on the SPI port then all subsequent output will
68. ation If those parameters are written then the module will come up with the UART enabled as desired on the next reset SPI communications The XBee Wi Fi module supports SPI communications in the slave mode Slave mode receives the clock signal and data from the master and returns data to the master The SPI port uses the following signals on the XBee SPI MOSI Master Out Slave In inputs serial data from the master SPI MISO Master In Slave Out outputs serial data to the master SPI SCLK Serial Clock clocks data transfers on MOSI and MISO SPI nSSEL Slave Select enables serial communication with the slave SPI nATTN Attention alerts the master that the slave has data queued to send The XBee module will assert this pin as soon as data is available to send to the SPI master and it will remain asserted until the SPI master has clocked out all available data In this mode the following apply SPI Clock rates up to 6 MHz are possible Data is MSB first Frame Format mode 0 is used This means CPOL 0 idle clock is low and CPHA 0 data is sampled on the clock s leading edge Mode 0 is diagrammed below SPI port is setup for API mode and is equivalent to AP 1 XBee Wi Fi RF Module S6B User Guide 28 Serial communication Frame format for SPI communications Frame Format nSSEL SCLE MO 4 r t 4 LI I LI J LI Lt i f i i MIB SPI mode is chip to chip communic
69. ayer For Wi Fi this means to disassociate from the access point and set SSID to NULL thereby preventing the node from immediately establishing the same connection with the same access point This command also clears security settings EE and PK Note that NR and NRO both do the same thing and may be used interchangeably CB Commissioning Button 2 WPS push button configuration 4 Force Provisioning in Soft AP mode by issuing an NR command See Commissioning button on page 63 for more details XBee Wi Fi RF Module S6B User Guide 2 4 126 Module support This section provides customization information for the XBee Wi Fi module In addition to providing an extremely flexible and powerful API the XBee module is a robust development platform that has passed FCC and ETSI testing XCTU configuration tool Digi provides the XCTU tool for configuring module parameters and updating firmware The XCTU tool has the capability to do the following Update firmware on a local module requires USB or serial connection Reador write module configuration parameters on a local Save and load configuration profiles containing customized settings Contact Digi support for more information about the XCTU Serial firmware updates Serial firmware updates make use of the XBee bootloader which ships in all modules This bootloader allows firmware to be updated Normally the running application can be told to invoke t
70. be issued to apply changes e g ATAC RSSI PWM The XBee module features an RSSI PWM pin DIO10 that if enabled will adjust the PWM output to indicate the signal strength of the last received packet The PO command is used to enable the RSSI pulse width modulation PWM output on the pin If PO is set to 1 the RSSI PWM pin will output a pulse width modulated signal where the frequency is adjusted based on the received signal strength of the last packet When a data packet is received if PO is set to enable the RSSI PWM feature the RSSI PWM output is adjusted based on the link margin of the last packet The RSSI PWM output will be enabled for a time based on the RP command Each time an RF packet is received the RSSI PWM output is adjusted based on the link margin of the new packet and the RSSI timer is reset If the RSSI timer expires the RSSI PWM pin is driven low RP is measured in 100ms units and defaults to a value of 40 4 seconds If running on the XBIB development board DIO10 is connected to the RSSI LEDs which may be interpreted as follows PWM duty cycle Number of LEDs turned on Link margin 79 3996 or more 3 30db or more 62 42 to 79 39 2 20db to 30db 45 45 to 62 42 1 10db to 20db Less than 45 45 0 Less than 10db or no reception for RP time Device Cloud support The following operations are available on the XBee Wi Fi module through Device Cloud Each operation requires that Device Cloud is enabled wit
71. cation etc See I O sampling on page 56 for more information on configuring and using GPIO ports Electrical specification for GPIO pads Parameter Condition Min Max Units Input Low Voltage 0 3VDD V Input High Voltage 0 7VDD V Output high Voltage Sourcing 2 mA VDD 3 3 V 85 96 relative to VDD Output low voltage Sinking 2 mA VDD 3 3 V 15 relative to VDD Output fall time 2 mA drive strength and 20 0 1CL 250 ns load capacitance CL 350 600pF I O pin hysteresis VDD 3 14 to 3 46 V 0 1VDD V VIOTHR VIOTHR Pulse width of pulses to 10 50 ns be removed by the glitch suppression filter Agency approvals Specification United States FCC Part 15 247 XBee Wi Fi Through hole FCC ID MCQ XBS6B XBee Wi Fi Surface Mount FCC ID MCQ S6BSM Industry Canada IC IC 1846A XBS6B IC 1846A S6BSM Europe DC ETSI ETSI Australia C Tick C Tick Brazil ANATEL 2672 13 1209 ANATEL 2672 13 1209 Japan R210 101056 R210 101057 For details about FCC Approval USA see United States FCC on page 128 Systems that contain XBee Wi Fi modules inherit Digi Certifications XBee Wi Fi RF Module S6B User Guide 15 XBee Wi Fi module specifications Mechanical drawings Through hole version N A 3J 2 0 375 S a e o o 2 858 S oO 0 376 0 313 354
72. ce A carriage return ends the command Command will automatically end when maximum bytes for the string have been entered 20 Byte printable ASCII string ASCII space character 0x20 DE Destination Port Set Get destination UDP TCP port value 0 OxFFFF 0x2616 KP Device Cloud Descriptor Description of the module that is displayed on Device Cloud Up to 20 ASCII characters ASCII space character 0x20 KC Device Cloud Contact Contact information for the module that is displayed on Device Cloud XBee Wi Fi RF Module S6B User Guide Up to 20 ASCII characters ASCII space character 0x20 106 Addressing AT command Name and description Parameter range Default KL Device Cloud Location Location of the Up to 20 ASCII characters ASCII space module that is displayed on Device Cloud character 0x20 CO Serial Communication Service Port Set 0 OxFFFF 0x2616 Get port number used to provide the serial communication service Data sent to this port comes from the serial port of the module The protocol used is set by the IP command when UART is in transparent mode DD Device Type Identifier Stores a device type 0 OxFFFFFFFF 0x90000 value This value can be used to differentiate different XBee based devices Digi reserves the range 0 OxFFFFFF NP Maximum RF Payload Bytes This value 0 OxFFFF read only returns the maximum number of RF payload bytes that can be
73. ciated SA specifies the maximum time to wait for association before starting the ST timer If SA expires before the association process completes then the module will sleep anyway When it awakens from this state then it will start the SA timer again to seek to establish association Under normal conditions SA is used for a time out for the first association following reset and ST is used for short wake cycles thereafter To conserve battery power SA should be long enough for association and ST should be as short as possible for the application Sampling data using sleep modes Data can be sampled when waking from any sleep mode by enabling an ADC or digital input and setting IR appropriately with respect to ST to obtain the desired number of samples Sample rate ATIR If multiple samples are wanted during the wake period then IR can be used This provides ST IR 1 samples Each sample is sent separately XBee Wi Fi RF Module S6B User Guide 52 Sleep options Wake host Wake host parameter ATWH delays UART and sample data from being initiated until the timer has expired This allows the host to wake up before receiving data or a sensor to power up before an 1 0 sample is taken Digital outputs and special function outputs such as ON SLEEP and CTS are not affected by WH This is to allow these signals to be used to wake up devices Note that for deep sleep both WH must be expired and the module must be associated before I O sampl
74. ck that should be written Ranges from 0 to 159 Ox9F GPM_START_INDEX Set to the byte index within the GPM block where the given data should be written GPM_NUM_BYTES Specifies number of bytes to write to GPM If the command is ERASE_THEN_WRITE 0x03 the GPM is erased before it is written For the WRITE 0x02 command the area being written should have previously been erased Note that if this parameter is zero the command erases the entire GPM and writes nothing Only one GPM block can be operated on per command For this reason GPM START INDEX GPM NUM BYTES cannot be greater than the GPM block size It is also important to remember that the number of bytes sent in an explicit API frame including the GPM command fields cannot exceed the maximum payload size of the radio The maximum payload size can be queried with the ATNP command GPM DATA The data to be written WRITE RESPONSE 0x82 and ERASE THEN WRITE RESPONSE 0x83 When a WRITE or ERASE THEN WRITE command request has been unicast to a node that node will send a response in the following format to the source endpoint specified in the requesting frame Field name Command specific description GPM CMD ID Should be set to WRITE RESPONSE 0x82 or ERASE THEN WRITE RESPONSE 0x83 GPM STATUS A 1 in the least significant bit indicates an error occurred All other bits are reserved at this time GPM BLOCK NUM GPM START INDEX M
75. d Q5 Name and description Set time to hold DIO15 Sets how long an output level programmed by bit 15 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description Parameter range 0 0x1770 x 100 ms Output Control Default Q6 Set time to hold DIO16 Sets how long an output level programmed by bit 16 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description 0 0x1770 x 100 ms Q7 Set time to hold DIO17 Sets how long an output level programmed by bit 17 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description 0 0x1770 x 100 ms Q8 Set time to hold DIO18 Sets how long an output level programmed by bit 18 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description 0 0x1770 x 100 ms Q9 indicates that the option is available on the SMT module but not the TH module Set time to hold DIO19 Sets how long an output level programmed by bit 19 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description XBee Wi Fi RF Mo
76. d Any user data stored in the GPM will be lost during an over the air upgrade XBee Wi Fi RF Module S6B User Guide 71 Over the air firmware upgrades Over the air firmware upgrades The XBee Wi Fi RF modules provide two methods of updating the firmware on the module Firmware can be updated locally via XCTU a free testing and configuration utility provided by Digi using the radio s serial port interface Firmware can also be updated using the radios RF interface Over the Air Updating The over the air firmware upgrading method provided is a robust and versatile technique which can be tailored to many different networks and applications It has been engineered to be reliable and minimize disruption of normal network operations There are three phases of the over the air upgrade process distributing the new application verifying the new application and installing the new application In the following section the node which will be upgraded will be referred to as the target node The node providing the update information will be referred to as the source node In most applications the source node will be locally attached to a PC running update software Distributing the new application The first phase of performing an over the air upgrade on a module is transferring the new firmware file to the target node The new firmware image should be loaded in the target node s GPM prior to installation XBee Wi Fi RF modules use an encrypted binar
77. d Key is when the wireless devices must present the proper key to get on the network Although Shared Key has more security than Open Authentication it should not be considered secure One of the benefits of Shared Key Authentication is simplicity XBee Wi Fi RF Module S6B User Guide 39 Infrastructure networks Channels The XBee Wi Fi modules operate in the 2412 2472 MHz range The frequency range is broken down into 13 channels Data is transmitted on a channel by radio frequencies over a certain frequency range In order to avoid bad performance caused by the overlapping collision of channel frequencies in a wireless LAN environment it is very important that the channels of neighboring access points are selected accordingly The center frequencies of the 13 possible channels range from 2412 to 2472 MHz with each channel being 22 MHz wide and centered in 5 MHz intervals This means that only 3 channels 1 6 and 11 in North America are not subject to overlapping xii p Pd MM EL E i 2412 2422 2432 2462 2472 2484 2417 2427 2442 2452 2467 MHz XBee Wi Fi RF Module S6B User Guide 40 XBee IP services The XBee provides services using IP Internet Protocol for XBee and other clients on the network IP services provide functionality to allow XBee configuration and direct serial port access There are two XBee services XBee Application Service Serial Communication Service XBee application se
78. dB 4 0 dB 4 5 dB Y13NF element A24 Yagi 15 12 5 dBi Fixed 2m 3 0 dB 4 5 dB 5 0 dB Y15NF element XBee Wi Fi RF Module S6B User Guide 135 A Europe ETSI Yagi class antennas Minimum cable loss power reduction attenuation required Part Type Min number Description Gain Application separation b mode g mode n mode A24 Yagi 16 13 5 dBi Fixed 2m 4 0 dB 5 5 dB 6 0 dB Y16NF element A24 Yagi 16 13 5 dBi Fixed 2m 4 0 dB 5 5 dB 6 0 dB Y16RM element RPSMA connector A24 Yagi 18 15 0 dBi Fixed 2m 5 5 dB 7 0 dB 7 5 dB Y18NF element If using the RF module in a portable application for example if the module is used in a handheld device and the antenna is less than 20cm from the human body when the device is in operation The integrator is responsible for passing additional SAR Specific Absorption Rate testing based on FCC rules 2 1091 and FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields OET Bulletin and Supplement C The testing results will be submitted to the FCC for approval prior to selling the integrated unit The required SAR testing measures emissions from the module and how they affect the person RF Exposure WARNING To satisfy FCC RF exposure requirements for mobile transmitting devices a separation distance of 20 cm or more should be maintained between the antenna of this device and persons during device operation To ensure complianc
79. de 143 Glossary of terms Definitions Local Host A device that is electrically connected to an XBee Typically this is a microcontroller connected to the serial pins of the module MAC address A unique network identifier All network devices are required to have their own unique MAC address The MAC address is on a sticker on your Digi device server The number is displayed as 12 hexadecimal digits usually starting with 00 40 9D Network Client A device that communicates with an XBee through the 802 11 network Static IP address assignment The process of assigning a specific IP address to a device Contrast with assigning a device through Dynamic Host Configuration Protocol DHCP or Automatic Private IP Addressing APIPA or Auto IP TCP See Transmission Control Protocol TCP on page 144 Temporal Key Integrity Protocol TKIP Part of the IEEE 802 11i encryption standard for wireless LANs TKIP is the next generation of the Wired Equivalent Privacy WEP which is used to secure 802 11 wireless LANs TKIP provides per packet key mixing a message integrity check and are keying mechanism and addresses several design shortcomings of the original WEP Transmission Control Protocol TCP A set of rules protocol used along with the Internet Protocol IP to send data in the form of message units between computers over the Internet While IP handles the actual delivery of the data TCP handles keeping track of the individual un
80. ds are manufactured by Century Interconnect Several other manufacturers provide comparable mounting solutions however Digi currently uses the following receptacles Through hole single row receptacles Samtec P N MMS 110 01 L SV or equivalent Through hole single row receptacles Mill Max P N 831 43 0101 10 001000 Surface mount double row receptacles Century Interconnect P N CPRMSL20 D 0 1 or equivalent Surface mount single row receptacles Samtec P N SMM 110 02 SM S We also recommend printing an outline of the module on the board to indicate the orientation the module should be mounted XBee Wi Fi RF Module S6B User Guide 26 RF module operation Serial communication The XBee RF modules interface to a host device through a logic level asynchronous serial port or a Serial Peripheral Interface SPI port Through its serial ports the module can communicate with any logic and voltage compatible UART or SPI or through a level translator to any serial device for example through a RS 232 or USB interface board UART communications UART data flow Devices that have a UART interface can connect directly to the pins of the RF module as shown in the following figure The figure shows the system data flow in a UART interfaced environment Low asserted signals are distinguished with a horizontal line over the signal name CMOS Logic CMOS Logic 8 3 4 ki 2 8 3 4 V DIN germ in DIN data in
81. dule S6B User Guide 0 0x1770 x 100 ms 120 Diagnostics interfacing Diagnostics interfacing AT command Name and description Parameter range Default Firmware Version Read firmware version for the module The firmware version returns 4 hexadecimal VR values 2 bytes ABCD Digits ABC are the 0 OxFFFF read only Factory set main release number and D is the revision number from the main release B is a variant designator where 0 means standard release Hardware Version Read the hardware version for the module This command can be used to distinguish among different hardware platforms The HV upper byte returns a value that is unique to 0 OxFFFF read only Factory set each module type The lower byte indicates the hardware revision XBee Wi Fi modules return Ox1Fxx for the HV command Hardware Series Indicates the hardware HS series number of the module This module should indicate 0x601 for S6B XBee Wi Fi RF Module S6B User Guide 121 Diagnostics interfacing AT command Name and description Parameter range Default Association Indication Read information regarding last node join request 0x00 Successfully joined an access point established IP addresses and IP listening sockets 0x01 Wi Fi transceiver initialization in progress 0x02 Wi Fi transceiver initialized but not yet scanning for access point 0x13 Disconnecting from access point 0x23 SSID not config
82. e Frame error Frame Type OxFE This frame type is sent to the serial port for any type of frame error Note This frame may be sent out the serial port in addition to a TX status response frame type 0x24 Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB 1 0x00 Number of bytes between the length and the checksum LSB2 0x02 API frame API frame 3 OxFE specific identifier data XBee Wi Fi RF Module S6B User Guide 103 API frames Frame fields Offset Example Description Status 4 0x07 0x02 Invalid frame type 0x03 Invalid frame length 0x04 Erroneous Checksum on last frame 0x05 payload of last API frame was too big to fit into a buffer 0x06 string entry was too big on last API frame sent 0x07 Wrong State to receive frame e g a device response was sent out without first receiving a device request 0x08 Device request ID of device response didn t match the number in the request Checksum 6 OxFA OxFF minus the 8 bit sum of bytes 3 4 of this frame XBee Wi Fi RF Module S6B User Guide 104 XBee command reference Addressing AT command Name and description Parameter range Default EQ Device Cloud Server FQDN Set Read fully Valid FQDN fully qualified domain https qualified domain name of Device Cloud name May be up to 64 characters devicecloud server long digi com LA Lookup IP Address o
83. e keys are entered with 13 ASCII characters or 26 hex characters RF interfacing commands AT command Name and description Parameter range Default 0 0 dBm 1 5 dBm PL Power Level Select Read the power level at which the RF 2 10 dBm 4 module transmits conducted power 3 15 dBm 4 Max power Channel Read the channel number of the access point or OxFF if not associated Channel can be set when AH is configured for Ad hoc creator mode Note When using Ad CH 1 0xB read only hoc mode not all channels are available in all countries It is the responsibility of the installer to use the appropriate channels XBee Wi Fi RF Module S6B User Guide 109 Serial interfacing Serial interfacing AT command Name and description Parameter range Default 0 Transparent mode AP API Enable Enable API Mode IS SENSOR 1 2 APl enabled with escaped control characters O ZigBee R API Output Options Indicates the type of 6 x AO frame to output when data is receivedon 1 Explicit ZigBee Rx 2 RX64 the IP services port 2 RX64 1 7 standard baud rates 1 2400 b s 2 4800 Interface Data Rate Set Read the serial 3 9600 interface data rate for communication z 4 19200 between the module serial port and host BD Any value above Ox0A is interpreted as an 5 38400 3 actual baud rate When a value above 0x0A 6 57600 is sent the closest interface data rate i represented by the number is stored inthe 72115200 BD regis
84. e operations at closer than this distance are not recommended The antenna used for this transmitter must not be co located in conjunction with any other antenna or transmitter The preceding statement must be included as a CAUTION statement in OEM product manuals in order to alert users of FCC RF Exposure compliance Europe ETSI The XBee Wi Fi RF Module has been certified for use in several European countries For a complete list refer to www digi com If the module is incorporated into a product the manufacturer must ensure compliance of the final product to the European harmonized EMC and low voltage safety standards A Declaration of Conformity must be issued for each of these standards and kept on file as described in Annex II of the R amp TTE Directive Furthermore the manufacturer must maintain a copy of the XBee user manual documentation and ensure the final product does not exceed the specified power ratings antenna specifications and or installation requirements as specified in the user manual If any of these specifications are exceeded in the final product a submission must be made to a notified body for compliance testing to all required standards XBee Wi Fi RF Module S6B User Guide 156 Europe ETSI OEM labeling requirements The CE marking must be affixed to a visible location on the OEM product CE Labeling Requirements
85. e Transmission Control Protocol TCP and together with IP is sometimes referred to as UDP IP Like the Transmission Control Protocol UDP uses the Internet Protocol to actually get a data unit called a datagram from one computer to another Unlike TCP however UDP does not provide the service of dividing a message into packets datagrams and reassembling it at the other end Specifically UDP does not provide sequencing of the packets in which the data arrives nor does it guarantee delivery of data This means that the application program that uses UDP must be able to make sure that the entire message has arrived and is in the right order Network applications that want to save processing time because they have very small data units to exchange and therefore very little message reassembling to do may prefer UDP to TCP The Trivial File Transfer Protocol TFTP uses UDP instead of TCP UDP provides two services not provided by the IP layer It provides port numbers to help distinguish different user requests and optionally a checksum capability to verify that the data arrived intact Wi Fi Protected Access WPA A data encryption user authentication method for 802 11 wireless LANs WPA uses the Temporal Key Integrity Protocol TKIP Wired Equivalency Protocol WEP A security algorithm that uses an RC4 stream cipher but which has multiple known flaws WPA See Wi Fi Protected Access WPA on page 145 WPA2 802 11i WPA with AES b
86. e as it would in STA mode with a few exceptions Only one device may connect and the connecting device must be operating in STA mode ATCP listening socket on the port specified by CO is open to accept connections but no UDP listening socket is available ID specifies the SSID sent by the module in the beacon but if ID is NULL it will advertise an SSID based on the MAC address of the module For details see Soft AP mode on page 62 XBee Wi Fi RF Module S6B User Guide 62 1 0 sampling The following are operational notes The Soft AP web page is designed to provide the same configuration options as are available on the XCTU program The web page is divided into sections that may expand collapse by clicking show hide By default the only section that is expanded is the Network Access section All fields proceeded with Ox must be hex values Do not programmatically configure the module in Soft AP mode because it is subject to change Note that Al will be 0x23 while in Soft AP provisioning mode because ID is NULL but Al will be 0 in Soft AP pass through mode as soon as the module is ready to accept a connection from a STA device This is true whether or not ID is null Wi Fi protected setup The XBee Wi Fi module may also be configured using Wi Fi Protected Setup WPS WPS allows for easy establishment of a secure wireless network because security parameters are learned from a nearby access point without having to
87. e cmdiD frame API identifier indicates which API messages will be contained in the cmdData frame Identifier specific data Note that multi byte values are sent big endian The XBee modules support the following API frames API frame names and values API frame names API ID Tx64 request 0x00 Remote command request 0x07 AT command 0x08 AT command queue parameter value 0x09 ZigBee transmit packet 0x10 ZigBee explicit transmit packet 0x11 ZigBee remote AT command 0x17 TX IPv4 0x20 Send data request 0x28 Device response 0x2A Rx64 indicator 0x80 Remote command response 0x87 AT command response 0x88 TX status 0x89 Modem status Ox8A ZigBee TX status 0x8B IO data sample Rx indicator Ox8F ZigBee receive packet 0x90 Explicit ZigBee receive packet 0x91 ZigBee remote AT command response 0x97 RX IPv4 OxBO Send data response OxB8 XBee Wi Fi RF Module S6B User Guide 76 API frame specifications API frame names API ID Device request OxB9 Device response status OxBA Frame error OxFE Checksum To test data integrity a checksum is calculated and verified on non escaped data Tocalculate Not including frame delimiters and length add all bytes keeping only the lowest 8 bits of the result and subtract the result from OxFF Toverify Add all bytes include checksum but not the delimiter and length If the checksum is correct the sum will equal OxFF A
88. e configuration specified in the IP command Data received on the serial port is packetized and sent to the RF port and data received on the RF port is sent to the serial port without any formatting of the data For details about how data is packetized see Transparent operation on page 31 UDP When the IP command is configured for UDP serial data is sent to the IP address specified by DL and itis sent to the UDP port specified by DE The source of the packet is defined by the CO command No connection is established TCP When the IP command is configured for TCP only one connection is allowed at a time If a transmission is attempted while a TCP connection exists the data will be sent on that connection ignoring the DL and DE parameters This connection can be initiated by a local host or by a network client A local host initiates a connection by sending data to the serial port A connection will be created based on the DL IP address and DE destination port commands However if DL is a broadcast address then UDP will be used ignoring the TCP configuration A network client establishing a TCP connection to the XBee will use the port defined by the CO command When established any data sent by the local host will not create a new connection based on DL and DE but rather the existing connection will be utilized API mode API mode allows specification of protocol UDP or TCP destination address and port and source port for tran
89. e more I O pins up to and including bit 19 for DIO19 The OM command is an output mask that enables 1 or disables 0 the corresponding bit in the IO command To control the output level of a pin with an IO command the corresponding bit in the OM command must be set and the corresponding pin e g DIO2 for bit 2 must be configured as an output low 4 or output high 5 None of the pins are configured for output by default Therefore the first step is to configure the pins that need to be toggled with the IO command to either output low 4 or output high 5 Then set the bits in OM to be controlled Finally send the IO command to set the output to the desired level 0 sets it low and 1 sets it high Each pin also has an associated timer to be used in conjunction with the IO command The timer determines how long the IO command will remain effective for each IO pin that is set to a level different than its configured value If the timer is set to a default value of 0 then the IO command remains in effect until it is overridden by another IO command or the module gets reset Otherwise the timer specifies the number of tenth second 100ms units that the module will stay at the selected level before reverting to its configured level The maximum value allowed is 6000 0x1770 which allows for ten minutes The AT commands for these timers are TO through T9 for pins DIOO through DIO9 respectively and QO through Q9 for pins DIO10 through DIO19 r
90. e samples all enabled digital I O and analog input channels and returns an I O sample When no I O line is enabled IS will return error If IS is sent locally the I O sample is sent out the UART or SPI port If the IS command was received as a remote command the I O sample is sent over the air to the module that sent the IS command If the IS command is issued in command mode the module returns a carriage return delimited list containing the above listed fields If the IS command is issued in API mode the module returns an API command response packet with the I O data included in the command data portion of the response frame The following table shows an example of the fields in an IS response XBee Wi Fi RF Module S6B User Guide 57 1 0 sampling Example Sample AT response 0x01 1 sample set 0x0COC Digital Inputs DIO 2 3 10 11 selected 0x03 Analog Inputs A D 0 1 0x0408 Digital input states DIO 3 10 high DIO 2 11 low 0x03DO Analog input ADIO 0 0x3D0 0x0124 Analog input ADIO 1270x120 Periodic I O sampling Periodic sampling allows the XBee module to take an I O sample and transmit it to a remote module at a periodic rate The periodic sample rate is set by the IR command If IR is set to 0 or there are no active I O lines periodic sampling is disabled For all other values of IR data will be sampled after IR milliseconds have elapsed and transmitted to a remote module However the module cannot
91. ects above or below the module at the antenna location The module should not be placed in a metal enclosure which may greatly reduce the range It should be placed at the edge of the PCB to which it is mounted The ground power and signal planes should be vacant immediately below the antenna section The following two drawings illustrate important recommendations for designing with the PCB Antenna module using the Through hole and Surface Mount XBee modules respectively It should be noted that the Surface Mount PCB antenna module should not be mounted on the RF Pad footprint described in the next section because that footprint requires a ground plane within the keepout area XBee Wi Fi RF Module S6B User Guide 21 XBee Wi Fi module specifications 1 2 3 4 5 B 7 B Minimum Keepaut Area All PCB Layers 83 8mm A A 3388Thou RER NES ROR SE REX TERRE Oe SOS p E SO c epout E CAI rea E MAE X VOUT ARBE N RS M NT S NO Re No metal in keepout on all layers in ls es SS m BIRR KIKI B B 3 9 2 E e 3 Bee Ha m E PRU E D 8 Ss t XBee form factor t XBee PRO farm factar Recommended Keepout Ares All PCB Layers D D 1 8mm 448 Thou Fr No metal in keepout on all layers E E B o E E I to b 4 a o om x Preferred edge of PCB af ef When possible keep XBee close F X A x x X x 2 E to edge of boa
92. ed break API frames The following sections illustrate the types of frames encountered while using the API TX Transmit request 64 Bit Frame Type 0x00 This frame type uses the XBee Application Service This command allows for software compatibility with other XBee module such as the 802 15 4 module Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB 1 0x00 Number of bytes between the length and the checksum LSB 2 OxOD XBee Wi Fi RF Module S6B User Guide 79 API frames Frame fields Offset Example Description API frame API frame 3 0x00 specific data identifier Frame ID 4 0x01 64 bit 0x00 Align IP address to low 32 bits of the field destination The other bytes set to 0 IP address is in hex address 0x00 The address in this example is 192 168 0 100 For sending a broadcast use OxFF OxFF OxFF 0x00 5 OxFF 0x00 A MAC address may also be in the lower 6 OxCO bytes of this field But if the MAC address doesn t match the module s own MAC OxA8 address then this field will be interpreted as an IP address as described above 0x00 0x64 TX options 13 0x00 0x01 Disable ACK All other bits must be set to 0 Data 14 0x1516 Max is 1392 bytes Data will be sent to the XBee application service port Checksum 0x07 OxFF minus the 8 bit sum of bytes from offset 3 to this byte Remote AT command request Frame Type 0x07 Used
93. ed configuration settings If desired configuration settings which were unknown may be read before setting them in this state 5 Write the desired configuration to non volatile memory using the WR command 6 Set up the interface to the XBee to match the configuration just written to non volatile memory Optionally reset the module and then begin operation in the new mode Using XCTU to enter configuration mode XCTU is designed to support a forced configuration on a UART interface following the steps below Currently XCTU will not work over a SPI interface directly 1 Connect an asynchronous serial port of the PC either RS 232 or USB to the development board into which the XBee module is plugged Start XCTU and go to the PC settings tab w Set parameters as appropriate on the PC settings tab to match the default configuration previously described Go to the terminal tab and click on the break key This holds the DIN line low Using the development board press the reset button Wait for the OK prompt to be displayed Click to de select the break key so that input can occur on DIN Oo N AU Bf Within ten seconds of seeing the OK prompt enter the desired configuration in AT command mode 9 Enter the WR command to save the parameters to non volatile memory 10 Go back to the PC settings tab and set up the PC side of the interface as it was just configured on the XBee 11 Optionally reset the XBee module 12 Go to
94. ed when the module becomes associated Outside of API mode the Al command must be used to determine when the module is associated SPI operation is similar except that the radio asserts nATTN when data becomes available and then the local host is expected to assert SPI nSSEL and to provide a clock until the data available is sent out When the local UART host needs to send data it de asserts SleepRq Once the appropriate status I O lines are asserted CTS and or On nSleep the module is ready to accept data However data will be queued and not sent until the next DTIM XBee Wi Fi RF Module S6B User Guide 51 Sleep options When the local SPI host needs to send data it asserts SPI nSSEL If SPI nSSEL is being used for pin sleep asserting SPI nSSEL is enough to awaken the module to receive the incoming data But if SleepRq is being used to control sleep then SPI nSSEL must be asserted and SleepRq must be de asserted to awaken the module to receive the data This wakes up the module which then accepts the incoming data however data is queued and not sent until the next DTIM Cyclic sleep mode The module remains associated to the AP and sleeps based on the SP parameter After SP expires the module awakens for 30 milliseconds to check for data from the AP and to allow the host to send data or commands This time is factored in as part of the overall ST time When data is received or sent within 30 ms the module remains awake for ST time a
95. ee Wi Fi RF Module S6B User Guide 32 Modes of operation As a general rule of thumb API firmware is recommended when a module Sends RF data to multiple destinations Sendsremote configuration commands to manage modules in the network Receives IO samples from remote modules Receives RF data packets from multiple modules and the application needs to know which module sent which packet Needs to use the send data request and device request features of Device Cloud If the above conditions do not apply e g in a sensor node or a simple application then transparent operation might be suitable It is acceptable to use a mixture of modules running API mode and transparent mode in a network Modes of operation Idle mode When not receiving or transmitting data the RF module is in Idle Mode The module shifts into the other modes of operation under the following conditions Transmit Mode serial data in the serial receive buffer is ready to be packetized Receive Mode valid RF data is received through the antenna Sleep Mode Command Mode Command Mode Sequence is issued Transmit mode When serial data is received and is ready to be packetized the RF module will exit Idle Mode and attempt to transmit the data The destination address determines which node s will receive the data Receive Mode If a valid RF packet is received the data is transferred to the serial transmit buffer Command mode To modify or
96. enter them manually The module only supports WPS with the push button method There are security concerns with using WPS with the pin method because the security information is passed in the clear How to enable WPS WPS is enabled by default but itis disabled if SSID is configured ATID is not NULL or if the module is connected in Soft AP mode To use WPS with the commissioning button it must be enabled by configuring ATDO to 1 How to use WPS WPS is invoked by pressing the commissioning button twice if ATDO is set to 1 or by entering the CB 2 command Then a corresponding WPS button must be pressed on a nearby WPS capable AP which allows the security parameters to be exchanged and the connection to the AP to occur Security Pre shared key mode PSK also known as Personal mode is designed for home and small office networks that don t require the complexity of an 802 1X authentication server Each wireless network device encrypts the network traffic using a 256 bit key This key may be entered either as a string of 64 hexadecimal digits or as a passphrase of 8 to 63 printable ASCII characters If ASCII characters are used the 256 bit key is calculated by applying the PBKDF2 key derivation function to the passphrase using the SSID as the salt and 4096 iterations of HMAC SHAT Commissioning button The commissioning button is used for setting up modules for the first time It can only be used if DO is set to 1 It provides two di
97. ep sleep is much faster if association occurs before going to sleep 0x1 Ox36EE80 x1 ms 0x2710 10 seconds Execution commands Where most AT commands set or query register values execution commands cause an action to be executed on the module Execution commands are executed immediately and do not require changes to be applied AT command AC Name and description Apply Changes Applies changes to all command registers causing queued command register values to be applied For example changing the serial interface rate with the BD command will not change the UART interface rate until changes are applied with the AC command The CN command and 0x08 API command frame also apply changes Parameter range Default WR Write Write parameter values to non volatile memory so that parameter modifications persist through subsequent resets Note Once WR is issued no additional characters should be sent to the module until after the OK r response is received The WR command should be used sparingly to preserve flash RE Restore Defaults Restore module parameters to factory defaults XBee Wi Fi RF Module S6B User Guide 125 AT command FR Name and description Software Reset Reset module Responds immediately with an OK status and then performs a software reset about 2 seconds later Execution commands Parameter range Default NR Network Reset Reset network l
98. es are taken XBee Wi Fi RF Module S6B User Guide 53 Advanced application features XBee analog and digital I O lines XBee Wi Fi firmware supports a number of analog and digital I O pins that are configured through software commands Analog and digital I O lines can be set or queried The following tables list the configurable I O pins and the corresponding configuration commands Through hole module Command Pin name s Module pin AT cmd range Default value DIO1 AD1 SPI nATTN 19 D1 0 5 0 DIO2 AD2 SPI CLK 18 D2 0 5 0 DIO3 AD3 SPI_nSSEL 17 D3 0 5 0 DIOA SPI MOSI 11 D4 0 1 3 5 0 DIOS ASSOCIATE 15 D5 0 1 3 5 1 DIO6 nRTS 16 D6 0 1 3 5 0 DIO7 nCTS 12 D7 0 1 3 7 1 DIO8 nDTR SLEEP RQ 9 D8 0 1 3 5 1 DIO9 On nSLEEP 13 D9 0 1 3 5 1 DIO10 RSSI PWM PWMO 6 PO 0 5 1 DIO11 PWM1 7 P1 0 2 5 0 DIO12 SPI MISO 4 P2 0 1 3 5 0 DIO13 DOUT 2 P3 0 1 1 DIO14 DIN nCONFIG 3 PA 0 1 1 XBee Wi Fi RF Module S6B User Guide 54 XBee analog and digital I O lines SMT module Command Default Pin name s Module pin AT cmd range value DIO1 AD1 32 D1 0 2 5 0 DIO2 AD2 31 D2 0 2 5 0 DIO3 AD3 30 D3 0 2 5 0 DIOA 24 D4 0 3 5 0 DIOS ASSOCIATE 28 D5 0 1 3 5 1 DIO6 nRTS 29 D6 0 1 3 5 0 DIO7 nCTS 25 D7 0 1 3 7 1 DIO8 nDTR SLEEP_RQ 10 D8 0 1 3 5 1 DIO9 On_nSLEEP 26 D9 0 1 3 5 1 DIO10 RSSI PWM PWMO 7 PO 0 5 1 DIO11 PWM1 8 P1 0 2 5 0 DIO12 5 P2 0 3 5 0 DIO
99. espectively 1 0 sampling To send I O samples to Device Cloud IR must be non zero there must be at least one active I O line and Device Cloud must be enabled If Device Cloud is not enabled then I O samples go to the address specified by the DL command See Periodic I O sampling on page 58 I O samples can be viewed by logging in to Device Cloud and viewing data streams under data services The data streams are organized by serial number of the sending device and then by the signal line being monitored Firmware update The XBee module also supports Device Cloud firmware updates This is done by right clicking on the device to be updated under the Devices tab of the Device Cloud Manager Pro tab and then selecting the firmware update option When the pop up for firmware updates appears browse to the file containing the firmware image and select it The file must have a ebin extension which indicates an encrypted binary file This same file is normally zipped up with the mxi file of each firmware release Send data request The Send Data request allows the host to use the XBee module to send a file to Device Cloud The request is sent with the send data request API frame see API operation on page 74 and Send data request on page 88 Device request Device request allows Device Cloud to send a message to a host connected to the serial port of the XBee module After the device request goes out the serial port the host has up to
100. evice must accept any interference including interference that may cause undesired operation of the device Le pr sent appareil est conforme aux CNR d Industrie Canada applicables aux appareils radio exempts de licence Lexploitation est autoris e aux deux conditions suivantes 1 l appareil ne doit XBee Wi Fi RF Module S6B User Guide 156 Canada IC pas produire de brouillage et 2 l utilisateur de l appareil doit accepter tout brouillage radio lectrique subi m me si le brouillage est susceptible d en compromettre le fonctionnement Labeling requirements Labeling requirements for Industry Canada are similar to those of the FCC A clearly visible label on the outside of the final product enclosure must display the following text XBee Wi Fi Through hole Contains Model XBEES6B Radio IC 1846A XBS6B XBee Wi Fi Surface Mount Contains Model S6BSM Radio IC 1846A S6BSM The integrator is responsible for its product to comply with IC ICES 003 amp FCC Part 15 Sub B Unintentional Radiators ICES 003 is the same as FCC Part 15 Sub B and Industry Canada accepts FCC test report or CISPR 22 test report for compliance with ICES 003 Transmitters with detachable antennas This radio transmitter IC 1846A XBS6B and IC 1846A S6BSM has been approved by Industry Canada to operate with the antenna types listed in the tables above with the maximum permissible gain and required antenna impedance for each antenna type indicated Anten
101. f FQDN Performa Valid FQDN May be up to 64 DNS lookup of the given FQDN and output characters long its IP address When the command is issued in API mode the IP address is formatted in binary In all other cases e g command mode the format is dotted decimal notation PG Ping an IP address Ping given IP address Valid IPv4 address in dotted and indicate the response time or an error decimal notation either dotted indication on failure Response will always be decimal notation or binary format a string NS DNS Address Set Read address of DNS Valid IPv4 address in dotted 208 67 222 server When reading API mode the format decimal notation 222 is binary In all other cases e g command address of mode the read format is dotted decimal openDNS notation DL Destination Address Low Set Get the 32 0 0 0 0 255 255 255 255 255 255 25 bits of the IPv4 destination address When 5 255 setting the format may be either dotted decimal e g 192 168 0 100 or binary e g C0A80064 When reading in API mode the format is binary In all other cases e g command mode the read format is dotted decimal notation XBee Wi Fi RF Module S6B User Guide 105 AT command MY Name and description IP Network Address Read the 32 bit network address of the module when using DHCP Set Read values when using static IP address When setting the format may be either dotted decimal e g 192 168 0 100 or binary
102. f beacons between each beacon with DTIM The current draw in associated sleep mode varies significantly When the module is awake it draws approximately 100 mA When it is asleep it draws approximately 2 mA Total current draw increases when the DTIM rate is higher and it decreases when the DTIM rate is lower on the access point The sleep modes are described as follows with this option enabled Pin sleep mode UART data can be received in pin sleep mode whether or not the host asserts the SleepRq pin For example if RF data is received by the module while SleepRq is asserted the module will wake up long enough to send the data outthe UART and then immediately resume sleeping Note that if wake host is configured the module will assert the appropriate I O lines indicating that it is awake then wait for wake host timer to expire then output the data and then immediately resume sleeping In this mode when SleepRq is asserted the module will power down the Wi Fi circuitry When SleepRq is de asserted the Wi Fi circuitry is powered up This causes the module to associate to the access point for each wake event If the module was associated when it went to sleep it should be ready to transmit data as soon as the On Sleep pin indicates that the module is awake If the module was not associated when it went to sleep the host must wait until the module is associated before a transmission can occur In API mode a modem status frame will be receiv
103. f the receiving module or the server port for any other network device This way if a connection is not found a new one is created As a server the best strategy is to swap the source and destination ports found in the IPv4 receive packet and place them in the response which is an IPv4 transmit packet This allows the response to be sent back on the same socket as the received data If on the other hand the data is sent to the listening socket of the other module rather than to the source socket given in the IPv4 receive packet then an extra socket is created While this still works it unnecessarily creates an extra socket connection XBee Wi Fi RF Module S6B User Guide 49 Sleep The XBee Wi Fi module supports two different sleep modes Pin Sleep Cyclic Sleep In addition the sleep mode current draw can be modified with the following sleep options AP Associated Sleep Deep Sleep Pin sleep allows an external microcontroller to determine when the XBee should sleep and when it should wake by using either the SleepRq pin default or the SPI nSSEL pin In contrast cyclic sleep allows the sleep period and wake times to be configured through the use of AT commands The module can stay associated to the access point or can enter a deeper sleep and associate to the access point for each sleep wake occurrence The sleep mode is configurable with the SM and SO commands Besides the four sleep modes mentioned above each of them ope
104. fferent services Two button presses in fast sequence invoke WPS see Wi Fi protected setup on page 63 Four button presses in fast sequence force the module into provisioning mode by clearing the SSID and security parameters It also ensures that soft AP mode is enabled Note that after the four button press clears the security parameters they are NOT written A separate ATWR command must be entered if desired The commissioning button operations may also be invoked with the ATCB 2 and ATCB 4 commands for two button presses and four button presses respectively XBee Wi Fi RF Module S6B User Guide 63 1 0 sampling Connection indicators In addition to AI and the associated LED indicator this software includes two other indicators as described below TCP connection indicator In transparent mode only one TCP connection is allowed and DIO12 aka CD can be configured to indicate whether or not that TCP socket is connected This is enabled by configuring P2 to 6 When so configured DIO12 outputs a low signal when the TCP socket is connected and it outputs a high signal when the TCP socket is disconnected Obviously the high signal remains when operating in UDP mode because there will never be a TCP connection Device Cloud connection indicator Al and the associate LED indicate when the module is fully associated with the access point butthere is another level of connectivity provided by the DI command that tells whether or not
105. fset Example Description Start 0 Ox7E Length 1 2 0x0009 Number of bytes between the length and the checksum API frame API frame 3 Ox2A specific identifier data Frame ID 4 0x01 Identifies the frame for the device response status If 0 then no device response status will be received Device 5 0x00 This number should match the device request ID request ID in the device request Otherwise an error will occur If Device Request ID was 0 in the OxB9 frame then this Device Response 0x24 frame is not expected from the serial port Reserved 6 0x00 Must be 0 for now Data 7 11 Hello The particular data for the device response is Checksum 12 OxEO OxFF minus the 8 bit sum of bytes 3 11 of this frame Rx Receive packet 64 bit Frame Type 0x80 This frame type is used by XBee when RF data is received using the XBee application service It allows for software compatibility with other XBee modules such as 802 15 4 An example of this frame type is given below Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB 1 0x00 Number of bytes between the length and the checksum API frame API Frame 3 0x80 specific Identifier data XBee Wi Fi RF Module S6B User Guide 89 API frames Frame fields Offset Example Description API frame 64 bit 4 0x00 Align IP address to low 32 bits of the field The specific source other bytes se
106. go to the SPI port and the UART will be disabled If the first input comes on the UART then all subsequent output will go to the UART and the SPI will be disabled Note that once a serial port UART or SPI has been selected all subsequent output will go to that port even if a new configuration is applied The only way to switch the selected serial port is to reset the module On SMT modules forcing DOUT low at the time of reset has no effect To use SPI mode on the SMT modules assert the SPI nSSEL pin 15 low after reset and before any UART data is input When the slave select SPI nSSEL signal is asserted by the master SPI transmit data is driven to the output pin SPI MISO and SPI data is received from the input pin SPI MOSI The SPI nSSEL pin has to be asserted to enable the transmit serializer to drive data to the output signal SPI MISO A rising edge on SPI nSSEL causes the SPI MISO line to be tri stated such that another slave device can drive it if so desired If the output buffer is empty the SPI serializer transmits the last valid bit repeatedly which may be either high or low Otherwise the module formats all output in API mode 1 format For details see XBee Wi Fi RF Module S6B User Guide 29 Serial communication API operation on page 74 The attached host is expected to ignore all data that is not part of a formatted API frame Serial buffers The XBee modules maintain buffers to collect received serial and RF data
107. h the DO command and that the XBee module is connected to an access point that has an external Internet connection to allow access to Device Cloud The FQDN fully qualified domain name of Device Cloud may be configured but it is set to https devicecloud digi com by default Configuration The XBee module can be queried and configured through Device Cloud This is done by logging in to Device Cloud selecting the Device Cloud Manager Pro tab and then double clicking on the device of interest under the Devices tab providing it is connected This allows the configuration and the system information to be displayed The next step is to click on the desired settings Press the refresh button to query the current configuration Press the save button to save the current configuration changes If changes are valid they will be written to non volatile memory and applied All selected configuration items will be changed at a time Output control You can find Executable Commands in Device Management gt System Information Currently it contains the 10 command and the OM command XBee Wi Fi RF Module S6B User Guide 59 1 0 sampling The IO command is used to set the level of output pins to high or low The parameter given to the IO command is a bit map that specifies which IO lines are set to which levels Bit O corresponds with DIOO bit 1 with DIO1 up to and including bit 14 that corresponds with DIO14 On the surface mount module there ar
108. he bootloader through a command from XCTU If that command is not available in the currently loaded firmware the bootloader includes a modified entry mechanism using pins 3 9 and 16 DIN nDTR and nRTS respectively By driving DIN low nDTR low and nRTS high at the time the module is reset the XBee bootloader is forced to run allowing a new version of firmware to load This method works even when the current firmware version does not support the firmware upgrade feature The XCTU program can update firmware on the XBee module over the UART port but not currently over the SPI port Contact Digi support for details Regulatory compliance XBee modules are certified for FCC and IC operation on all 11 channels 1 11 allowable and ETSI certified for all 13 channels 1 13 allowable XBee Wi Fi RF Module S6B User Guide 127 Agency certifications United States FCC This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation The XBee Wi Fi Module complies with Part 15 of the FCC rules and regulations Compliance with the labeling requirements FCC notices and antenna usage guidelines is required To fulfill FCC Certification the OEM must comply with the following regulations 1 The system integrator must ensure that the
109. i RF Module S6B User Guide 85 ZigBee remote AT command Frame Type 0x17 API frames This frame type is only provided for software compatibility with other XBee modules Frame type 0x07 is recommended for sending remote commands from this module An example of this frame type is given below Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB1 0x00 Number of bytes between the length and the checksum LSB 2 0x13 API frame API frame identifier 3 0x17 specific data Frame ID 4 0x01 64 bit source 5 0x00 Align IP address to low 32 bits of the field address The other bytes are set to 0 IP address is 6 0x00 in hex This example uses address 7 0x00 192 168 1 130 8 0x00 9 0xCO 10 0xA8 11 0x01 12 0x82 Reserved 13 OxFF Unused placeholders 14 OxFE Command options 15 0x02 0x02 Apply changes on remote If not set then AC command must be sent or the last remote command sent must set this option AT command 16 Ox44 D Two ASCII characters representing command name DL in this case 17 Ox4C L Parameter value 18 0xCO Sets DL to 192 168 1 140 19 OxA8 Parameter value field doesn t exist on a query 20 0x01 21 Ox8C Checksum 22 0x78 Add this value to sum of bytes from byte 3 XBee Wi Fi RF Module S6B User Guide to here such that result Oxff 86 Transmit TX request IPv4 Frame Type 0x20 API frames
110. ication with the module be done through a structured interface data is communicated in frames in a defined order The API specifies how commands command responses and module status messages are sent and received from the module using a UART or SPI Data Frame Note that Digi may add new API frames to future versions of firmware so build into your software interface the ability to filter out additional API frames with unknown Frame Types API frame specifications Two API modes are supported and both can be enabled using the AP API Enable command Use the following AP parameter values to configure the module to operate in a particular mode AP 1 API Operation AP 2 API Operation with escaped characters API operation AP parameter 1 When this API mode is enabled AP 1 the UART or SPI data frame structure is defined as follows UART or SPI data frame structure Ox7E MSB LSB API specific 1 Byte Structure MSB Most Significant Byte LSB Least Significant Byte Any data received prior to the start delimiter is silently discarded If the frame is not received correctly or if the checksum fails the module will reply with a module status frame indicating the nature of the failure XBee Wi Fi RF Module S6B User Guide 74 API frame specifications API operation with escape characters AP parameter 2 When this API mode is enabled AP 2 SPI mode is not supported and the UART frame structure is UART Data Fr
111. int endpoint Cluster ID 16 0x00 Memory access cluster ID 17 0x23 Profile ID 18 OxC1 Digi profile ID 19 0x05 Options 20 0x00 XBee Wi Fi RF Module S6B User Guide 98 API frames Frame fields Offset Example Description API frame RF data 21 0x80 Response to platform info request indicating 160 specific GPM blocks available Each block size is 4096 data 22 0x00 bytes 23 OxAO 24 0x10 25 0x00 26 0x00 Response to platform info request indicating 160 GPM blocks available Each block size is 4096 Checksum 28 OxBD Add this value to sum of bytes from byte 3 to here such that result Oxff ZigBee remote AT command response Frame Type 0x97 This frame type is only provided for software compatibility with other XBee modules It is used to generate a response to the ZigBee Remote AT Command 0x17 Normally Remote AT command 0x07 is used instead with a remote command response of 0x87 An example of this frame type is given below Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB 1 0x00 Number of bytes between the length and the checksum LSB 2 OxOF APlframe APlframe 3 0x97 specific identifier data Frame ID 4 0x01 64 bit 5 0x00 The address of the remote radio returning this source response Align IP address to low 32 bits of the address 6 0x00 field The other bytes set to 0 Value is in hex In this example the IP addres
112. is enabled with DO bit 0 Only the raw data will be seen on the serial interface and the target string to which the Device Cloud sent the data will not be available API mode must be used to see the target string Also in transparent mode the Device Cloud should not request a response because none will be given Soft AP mode The XBee Wi Fi module can operate in Soft AP mode aka Wi Fi Direct In this mode the XBee module emulates an access point AP rather than a station STA This allows another Wi Fi client device STA to connect to the XBee module directly without requiring a separate AP WPA2 security is available in Soft AP mode but not WPA or WEP security By default Soft AP operates with no security Enable Soft AP mode The module operates in Soft AP mode in two different ways provisioning mode and pass through mode These two Soft AP modes are enabled differently Pass through mode is enabled by setting CE to 1 which is not the default configuration When CE is 1 it overrides parameters for provisioning mode Provisioning mode is enabled by default It may be disabled by clearing bit 1 of DO The other requirement to enable provisioning mode is that SSID must be NULL Again SSID is NULL by default and it may be forced to NULL by issuing the NR command Use Soft AP mode When the module is operating in Soft AP provisioning mode it is waiting for a connection from a STA device ATAI will be 0x23 because the SSID is not c
113. its of data called packets that a message is divided into for efficient routing through the Internet For example when an HTML file is sent to you from a Web server the Transmission Control Protocol TCP program layer in that server divides the file into one or more packets numbers the packets and then forwards them individually to the IP program layer Although each packet has the same destination IP address it may get routed differently through the network At the other end XBee Wi Fi RF Module S6B User Guide 144 Definitions the client program in your computer TCP reassembles the individual packets and waits until they have arrived to forward them to you as a single file TCP is known as a connection oriented protocol which means that a connection is established and maintained until such time as the message or messages to be exchanged by the application programs at each end have been exchanged TCP is responsible for ensuring that a message is divided into the packets that IP manages and for reassembling the packets back into the complete message at the other end In the Open Systems Interconnection OSI communication model TCP is in layer 4 the Transport Layer UDP See User Datagram Protocol UDP on page 145 User Datagram Protocol UDP A communications protocol that offers a limited amount of service when messages are exchanged between computers in a network that uses the Internet Protocol IP UDP is an alternative to th
114. kes it unreadable to unwanted parties adding a degree of secure communications There are different protocols for providing encryption and the XBee Wi Fi module supports WPA WPA2 and WEP Authentication Authentication deals with proving the identity of the wireless device attempting to associate with the network There are different methods of doing this The XBee Wi Fi module supports Open and Shared Key authentication in WEP mode and it only supports shared key authentication in WPA and WPA2 modes Open Open Authentication is when the access point simply accepts the wireless devices identity without verifying or proving it The benefits to this is simplicity and compatibility all devices can do it In this mode which is only available when using WEP a connection to the access point occurs even if the WEP key is wrong However no real communication can occur because of mismatched keys If DHCP is configured it will fail too causing the AI indicator to get stuck in the AI 41 state If on the other hand the AP is configured for shared key authentication no connection will occur with an incorrect WEP key Instead Al will get stuck in the FF state indicating scanning Although shared key authentication sounds better it exposes a big security flaw with WEP The challenge text its encrypted result and a success failure result are passed in the clear and can easily be caught over the air to determine the WEP key Shared key Share
115. ket ID 4 0x00 Reserved for later use 0 for now Encryption 5 0x00 pad Command 16 0x02 Indicates remote AT command ID Command 7 0x00 Options are not available for this command options Command Frame ID 8 0x01 specific data Configurati 9 0x02 0 Queue command parameter Must send on options AC command or use apply changes option to apply changes 2 Apply changes to all changed commands AT 10 0x49 I Command Name Two ASCII characters that command identify the AT command XBee Wi Fi RF Module S6B User Guide 43 Local host Packet fields Offset Example Description Command 11 0x44 D specific data Parameter 12 If present indicates the requested value parameter value to set the given command If no characters present command is queried The response is sent back to the host with the following bytes Packet fields Offset Example Description Application Number1 0 0x4242 header Number2 2 0x0000 Number1 Number2 0x4242 Packet ID 4 0x00 Reserved for later use 0 for now Encryption pad 5 0x00 Command ID 6 0x82 Indicates remote AT command response Command options 7 0x00 Options not available for this response Command Frame ID 8 0x01 Copied from the command specific 2 AT Command 9 0x49 I Command Name Two ASCII characters that identify the AT Status 11 0x00 0 OK 1 ERROR 2 Invalid Command 3 Invalid Parameter Parameter Value 12 0x41
116. l mesmo de estac es do mesmo tipo e n o pode causar interfer ncia a sistemas operando em car ter prim rio XBee Wi Fi RF Module S6B User Guide 140 Manufacturing information for surface mount XBee The surface mount XBee is designed for surface mount on the OEM PCB It has castellated pads to allow for easy solder attach inspection The pads are all located on the edge of the module so that there are no hidden solder joints Recommended solder reflow cycle The recommended solder reflow cycle is shown below The chart shows the temperature setting and the time to reach the temperature The cooling cycle is not shown Time seconds Temperature C 30 65 60 100 90 135 120 160 150 195 180 240 210 260 The maximum temperature should not exceed 260 degrees Celsius The module will reflow during this cycle and therefore must not be reflowed upside down Care should be taken not to jar the module while the solder is molten as parts inside the module can be removed from their required locations Hand soldering is possible and should be done in accordance with approved standards This module has a Moisture Sensitivity Level MSL of 3 XBee Wi Fi RF Module S6B User Guide 141 Recommended footprint Recommended footprint It is recommended that you use the PCB footprint shown below for surface mounting Dimensions are in inches 0 958 0 866 0 112 gt CD B
117. ld source The other bytes are set to 0 IP address is in address 5 0x00 hex This example uses address 6 0x00 192 168 0 103 7 0x00 8 OxCO 9 OxA8 10 0x00 11 0x67 Reserved 12 OxFF Unused placeholder 13 OxFE Options 14 0x00 Bit 1 Broadcast packet RF Data 15 0x48 H Up to 1392 bytes of data 16 0x65 e 17 Ox6C I 18 Ox6C 19 Ox6F o Checksum 20 OxAF Add this value to sum of bytes from byte 3 XBee Wi Fi RF Module S6B User Guide to here such that result Oxff 97 Explicit ZigBee receive packet Frame Type 0x91 API frames This frame type is used by XBee when RF data is received using the XBee application service and AO is setto 1 Even when AO is not 1 this frame is also used for GPM response frames see Sleep on page 50 See the following table for an example of this frame type Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB1 0x00 Number of bytes between the length and the checksum LSB 2 0x19 API frame API Frame 3 0x91 specific Identifier data 64 bit source 4 0x00 Align IP address to low 32 bits of the field The address other bytes are set to 0 IP address is in hex This 5 0x00 example uses address 192 168 0 103 6 0x00 7 0x00 8 0xCO 9 OxA8 10 0x00 11 0x67 Reserved 12 OxFF Unused placeholder 13 OxFE Source 14 OxE6 Digi device object endpoint endpoint Destination 15 OxE6 Digi device object endpo
118. lication features XBee analog and digital I O lines 54 I O sampling 56 Soft AP mode 62 Enable Soft AP mode 62 Use Soft AP mode 62 Wi Fi protected setup 63 Commissioning button 63 Connection indicators 64 Working with flash memory 71 Over the air firmware upgrades 72 Distributing the new application 72 Verifying the new application 73 Installing the application 73 Things toremember 73 API operation API frame specifications 74 API UART and SPI exchanges 78 ATcommands 78 Transmitting and receiving RF data 78 Remote ATcommands 78 Supporting the API 79 API frames 79 TX Transmit request 64 Bit 79 Remote AT command request 80 ATcommand 82 AT command queue parameter value 82 ZigBee transmit packet 83 ZigBee explicit transmit packet 84 ZigBee remote AT command 86 Transmit TX request IPv4 87 Send datarequest 88 Device response 89 Rx Receive packet 64 bit 89 Remote command response 90 XBee Wi Fi RF Module SB6 User Guide AT command response 91 Transmission status 92 Modem status 93 ZigBee TXstatus 94 IO data sample RX indicator 95 ZigBee receive packet 97 Explicit ZigBee receive packet 98 ZigBee remote AT command response 99 RX Receive packet IPv4 100 Send dataresponse 101 Device request 102 Device response status 102 Frame error 103 XBee command reference Addressing 105 Networking Commands 108 Security commands 109 RF interfacing commands 109 Serial interfacing 110 I O settings 112 O
119. ly one sample to be taken 1 OXFF 1 gives you a sample every sleep cycle PO DIO10 Configuration Select Read function for the DIO10 line of the RF module XBee Wi Fi RF Module S6B User Guide 0 Disabled 1 PWM RSSI Output 2 PWMO Output 3 Digital input monitored 4 Digital output default low 5 Digital output default high 112 I O settings AT command Name and description Parameter range Default 0 Disabled 2 PWM1 Output DIO11 Configuration Select Read function NER pi for the DIO11 line of the RF module ae impur monitoreo 4 Digital output default low 5 Digital output default high 0 Disabled 1 SPI MISO 3 Digital input monitored P2 DIO12 Configuration Select Read function s 0 for the DIO12 line of the RF module 4 Digital output default low 5 Digital output default high 6 TCP connection indicator Bs DOUT Enables or disables output on UART 0 Disabled port 1 Enabled 0 Disabled P4 DIN Enables or disables input on UART port 1 1 Enabled 0 Disabled ps DIO15 Configuration Select Read function 1 SPILMISO for the DIO15 line of the RF module 4 Digital output default low 5 Digital output default high Pe DIO16 Configuration Select Read function 0 Disabled 1 for the DIO16 line of the RF module 1 SPI MOSI 4 Digital output default low 5 Digital output default high 0 Disabled p
120. mended to be placed as near to pin 1 on the PCB as possible If using a switching regulator for your power supply switching frequencies above 500 kHz are preferred Power supply ripple should be limited to a maximum 50mV peak to peak Recommended pin connections The only required pin connections are VCC GND and either DOUT and DIN or SPI CLK SPI nSSEL SPI MOSI and SPI MISO To support serial firmware updates VCC GND DOUT DIN nRTS and nDTR should be connected All unused pins should be left disconnected All inputs on the radio can be pulled high with 40k internal pull up resistors using the PR software command No specific treatment is needed for unused outputs For applications that need to ensure the lowest sleep current inputs should never be left floating Use internal or external pull up or pull down resistors or set the unused I O lines to outputs The deep sleep pin sleep current specification can be achieved using a standard XBee Interface Board with the XBee Wi Fi module s pull up and pull down resistors configured as default Other pins may be connected to external circuitry for convenience of operation For example the Associate signal through hole pin 15 surface mount pin 28 and the On_nSLEEP signal through hole pin 13 surface mount pin 26 will change level or behavior based on the state of the module XBee Wi Fi RF Module S6B User Guide 20 XBee Wi Fi module specifications Board layout When designing
121. mmand is issued Register queries reading parameter values are returned immediately Example Send a command to change the baud rate BD to 115200 baud but don t apply changes yet Module will continue to operate at the previous baud rate until changes are applied Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB 1 0x00 Number of bytes between the length and the checksum LSB 2 0x05 API frame API frame 3 0x09 specific identifier data Frame ID 4 0x01 XBee Wi Fi RF Module S6B User Guide 82 API frames Frame fields Offset Example Description API frame AT MSB 5 0x42 B Command Name Two ASCII characters that specific command identify the AT command data LSB 6 0x44 D Parameter 7 0x07 If present indicates the requested parameter value value to set the given register If no characters present register is queried Checksum 8 0x68 OxFF minus the 8 bit sum of bytes from offset 3 to this byte Note In this example the parameter could have been sent as a zero padded 2 byte or 4 byte value ZigBee transmit packet Frame Type Ox10 This frame type is only provided for software compatibility with other XBee modules Frame type 0x20 is recommended for data transmissions from this module An example of this frame type is given below Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB 1 0x00
122. na types not included in this list having a gain greater than the maximum gain indicated for that type are strictly prohibited for use with this device Le pr sent metteur radio IC 1846A XBS6B et IC 1846A S6BSM a t approuv par Industrie Canada pour fonctionner avec les types d antenne num r s ci dessous et ayant un gain admissible maximal et l imp dance requise pour chaque type d antenne Les types d antenne non inclus dans cette liste ou dont le gain est sup rieur au gain maximal indiqu sont strictement interdits pour l exploitation de l metteur Detachable antenna Under Industry Canada regulations this radio transmitter may only operate using an antenna of a type and maximum or lesser gain approved for the transmitter by Industry Canada To reduce potential radio interference to other users the antenna type and its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication Conform ment la r glementation d Industrie Canada le pr sent metteur radio peut fonctionner avec une antenne d un type et d un gain maximal ou inf rieur approuv pour l metteur par Industrie Canada Dans le but de r duire les risques de brouillage radio lectrique l intention des autres utilisateurs il faut choisir le type d antenne et son gain de sorte que la puissance isotrope rayonn e quivalente p i r e ne d passe pas l intensit n
123. nd any further activity does not restart this time When no data is received or sent within 30 ms the module resumes sleep immediately without waiting for ST time out Deep sleep non associated sleep This option allows the Wi Fi circuitry to be powered down resulting in the lowest sleep current about 6 uA but at the expense of losing packets received during the time the module is asleep This is because the access point will behave like the module is in full power mode while it is asleep and it will not hold back packets until the module wakes up Pin sleep mode In this mode when SleepRq is asserted the module will power down the Wi Fi circuitry When SleepRq is de asserted the Wi Fi circuitry is powered up This causes the module to associate to the access point for each wake event If the module was associated when it went to sleep it should be ready to transmit data as soon as the On Sleep pin indicates that the module is awake If the module was not associated when it went to sleep the host must wait until the module is associated before a transmission can occur In API mode a modem status frame will be received when the module becomes associated Outside of API mode the Al command must be used to determine when the module is associated Cyclic sleep mode In this mode the module will enter and exit sleep based on the SP ST and SA commands SP specifies the sleep time and ST specifies the wake time of the module after it is asso
124. nimum cable loss power reduction attenuation required Part Type Min number Description Gain Application separation b mode g mode n mode A24 Y6NF Yagi 6 element 8 8 dBi Fixed 2m N A 1 7 dB 1 7 dB A24 Y7NF Yagi 7 element 9 0 dBi Fixed 2m N A 1 9 dB 1 9 dB A24 YONF Yagi 9 element 10 0 dBi Fixed 2m 0 9 dB 2 9 dB 2 9 dB A24 Y10NF Yagi 10 element 11 0 dBi Fixed 2m 1 9 dB 3 9 dB 3 9 dB A24 Y12NF Yagi 12 element 12 0 dBi Fixed 2m 2 9dB 49dB 4 9dB A24 Y13NF Yagi 13 element 12 0 dBi Fixed 2m 2 9dB 49dB 4 9dB A24 Y15NF Yagi 15 element 12 5 dBi Fixed 2m 3 4 dB 5 4dB 5 4 dB A24 Y16NF Yagi 16 element 13 5 dBi Fixed 2m 4 4 dB 6 4dB 6 4 dB A24 Y16RM Yagi 16 element 13 5 dBi Fixed 2m 44dB 64dB 64dB RPSMA connector A24 Y18NF Yagi 18 element 15 0 dBi Fixed 2m 5 9 dB 7 9 dB 7 9 dB XBee Wi Fi RF Module S6B User Guide 132 Antennas approved for use with the XBee Wi Fi Surface Mount Module Integrated antennas United States FCC Minimum cable loss power reduction attenuation required Part Type Min number Description Gain Application separation b mode g mode n mode 31000005 Integral PCB O dBi Fixed 20 cm N A N A N A 01 antenna Mobile A24 QI Monopole 1 5 dBi Fixed 20 cm N A N A N A Integrated Mobile Whip Dipole antennas Minimum cable loss power reduction attenuation required Part Type Applicatio Min number Descrip
125. odule receives a valid device request from Device Cloud Frame fields Offset Example Description Start 0 Ox7E Length 1 2 0x0026 Number of bytes between the length and the checksum API frame APlframe 3 OxB9 specific identifier data Device 4 0x01 Identifies the device request If 0 then no request ID response is required Transport 5 0x00 Placeholders Values can be ignored Flags 0x00 Target 0x08 Length of target string length Target 8 15 myTarget String required by the host side e g a file string name Data 16 40 A message for serial host Checksum 41 0xC6 OxFF minus the 8 bit sum of bytes 3 40 of Device response status Frame Type OxBA this frame this frame This frame type is sent to the serial port after the serial port sends a device response frame type 0x24 Frame fields Offset Example Description Start 0 Ox7E delimiter Length 1 2 0x0003 Number of bytes between the length and the checksum XBee Wi Fi RF Module S6B User Guide 102 API frames Frame fields Offset Example Description API frame API frame 3 OxBA specific identifier data Frame ID 4 0x01 Identifies the frame for which status is being reported Corresponds to the frame ID in the device response Status 5 0x00 0x00 Success 0x20 Device Request canceled by user 0x21 Session timed out 0x40 Unknown Error Checksum 6 0x44 OxFF minus the 8 bit sum of bytes 3 5 of this fram
126. onfigured The STA device needs to support Wi Fi and it needs to have an HTTP browser operating on TCP port 80 Some examples of devices that might connect to the module operating in Soft AP mode are smart phones tablets and laptop computers The connecting STA device should scan for an AP The XBee module will advertise an SSID of xbee lt MAC gt where MAC is the 6 byte MAC address of the XBee module formatted as follows xbee XXXXXXXXXXXX where each X represents a hex digit The STA needs to connect to that SSID and then open a browser by entering 192 168 1 10 into the address bar This will bring up the web page from the XBee module to allow the module to be configured as desired The primary purpose of this feature is to configure the device to connect to the desired access point with the desired security settings The secondary purpose is to configure any other parameters The current value of each configuration field is displayed on the web page The user can enter the desired parameters and then go to the bottom of the page and press the apply button The selected parameters will be written to the non volatile memory on the module However the network access parameters are only written if a valid set of parameters is entered The module tests the validity of those parameters by attempting to connect to the given access point When the module is operating in Soft AP pass through mode HTTP on port 80 is not used and it operates the sam
127. ord is displayed one per line for each access point found Readable ASCII characters are outputs with a carriage return and each field on a new line When it is issued in API mode each record i e each access point outputs a separate AT command response of type 0x88 with the above fields in binary format The command will terminate with a null AT Command Response Packet In AT command mode the AS command will terminate with an additional carriage return Note that this command is not available as a remote command Also note that this command gives an error if associated to an access point Al must be 0x23 for this command to work which may be achieved by first using the NR command Parameter range Diagnostics interfacing Default TP Temperature Read temperature of module in degrees Celsius 30 to 85C CK Configuration Code Read the configuration code associated with the current AT command configuration 2 bytes V Supply Voltage Read supply voltage in millivolt units 3 1 to 3 5V LM Link Margin Reads the received signal strength RSSI in terms of dB units above sensitivity reports Oxff until the first reception after connection to access point XBee Wi Fi RF Module S6B User Guide 0 OxFF 123 AT command options AT command CT Name and description Command Mode Timeout Set Read the period of inactivity no valid commands received after which the RF
128. ore command mode is entered The maximum number of characters that will fit in an RF packet is received API operation API operation is an alternative to transparent operation The frame based API extends the level to which a host application can interact with the networking capabilities of the module When in API mode all data entering and leaving the UART or SPI is contained in frames that define operations or events within the module XBee Wi Fi RF Module S6B User Guide 31 Serial communication Transmit Data Frames received through the DIN or SPI MOSI pin include RFTransmit Data Frame Local commands equivalent to AT commands Remote commands to be sent to another radio Receive Data Frames sent out the DOUT or SPI MISO pin include RF received data frames Local command responses Remote command responses O samples from a remote radio Event notifications such as transmission status reset associate disassociate etc The API provides an alternative means of configuring modules and of routing data at the local host application layer A local host application can send data frames to the module that contain address and payload information instead of using command mode to modify addresses The module will send data frames to the application containing status packets as well as source and payload information from received data packets The API operation option facilitates many operations such as the exam
129. ples cited below Transmitting data to multiple destinations without entering Command Mode Receive success failure status of each transmitted RF packet Identify the source address of each received packet A comparison of transparent and API operation The following table compares the advantages of transparent and API modes of operation Transparent operation features Simple interface All received serial data is transmitted unless the module is in command mode Easy to support It is easier for an application to support transparent operation and command mode API operation features Easy to manage data Transmitting RF data to multiple remotes only requires changing the transmissions to address in the API frame This Process is much faster than transparent multiple destinations operation where the application must enter AT command mode change the address exit command mode and then transmit data Each API transmission can return a transmit status frame indicating the success or reason for failure Received data frames All received RF data API frames indicate the source address indicate the sender s address Advanced Networking API frames can provide indication of IO samples from remote modules diagnostics transmission status messages and local radio status messages Set read configuration commands can be sent to remote modules to Remote Configuration configure them as needed using the API XB
130. r Guide 116 AT command DS Name and description Drive Strength Set Read the output drive strength output amperes for DIO lines Bits are mapped the same as the PR and PD commands If the bit is set the drive strength is 6mA Otherwise it is 2mA Parameter range 0 Ox7FFF on TH 0 OxFFFFF on SMT Output Control Default AV Analog Voltage Reference Set Read the analog voltage reference This specifies the volts for an analog reading of 0x03ff where a reading of 0x200 indicates a voltage input that is half of VREF VREF may be one of these two values 0 1 25Volts 1 2 5 Volts 0 1 MO PWMO Duty cycle Sets the duty cycle of PWMO for PO 2 where a value of 0x200 is a 5096 duty cycle 0 0xO3FF M1 indicates that the option is available on the TH module but not the SMT module PWM 1 Duty cycle Sets the duty cycle of PWM1 for P1 2 where a value of 0x200 is a 5096 duty cycle 0 Ox03FF indicates that the command is available on the SMT module but not the TH module Output Control AT command Name and description Set Output Pins Set output pins to the designated level Bit 0 corresponds with DIOO bit 1 with DIO1 up to bit 19 that corresponds with DIO19 See Output control on page 59 for a functional description Parameter range 0 to Ox7fff on TH O to Oxfffff on SMT Default OM Output Mask Sets the output mask for the IO command If a bit is
131. rame ID From the perspective of Device Cloud go to the Documentation tab Under API Explorer select the examples pull down menu Select SCI then Data Service and then Send request This will bring up a sample XML file that can be modified Under targets enter the MAC address of the XBee module in this format 00000000 00000000 010203FF FF040506 where 01 to 06 are the first through sixth bytes of the MAC address respectively and 00 and FF are literally 00 and FF Then enter the target name as desired but any target name beginning with XBee case insensitive is reserved for use on the XBee module itself and will not be sent out the serial port Finally enter the string that will be output in the device request Both the target name and the device request string are dependent on your application and the XBee module will pass these strings on unmodified After completing the above edits be sure that the HTTP method for post is selected and send the device request by pressing the send button The device response should show up on the right half of the screen Transparent data The XBee Wi Fi module also supports Device Cloud transmissions and receptions in transparent mode Transparent data is sent to the Device Cloud using the Send Data interface and transparent data is received from the Device Cloud using the Device Request interface Some parts of those interfaces are lost due to not using the API interface Send data to Device Cloud
132. rate a little differently based on the serial interface UART or SPI Using sleep mode UART When the serial interface is UART the On nSleep pin is used to indicate that the module is entering sleep mode unless it is configured for a different usage See XBee command reference on page 105 If D9 is configured for On nSleep then it is driven low when asleep and high when awake whether using pin sleep or cyclic sleep If CTS hardware flow control is enabled D7 command the CTS pin is de asserted high when entering sleep to indicate that serial data should not be sent to the module The module will not respond to serial or RF data when it is sleeping Applications that utilize the UART are encouraged to observe CTS flow control in any of the sleep modes When the XBee wakes from sleep with flow control enabled the CTS pin is asserted low If using pin sleep D8 must be configured for SleepRq See XBee command reference on page 105 to put the module to sleep Otherwise there is no sleep at all meaning the module will always stay awake in full power mode When D8 is configured for SleepRq the host should drive SLEEP RQ high to put the module to sleep and the host should drive SLEEP RQ low to wake up the module XBee Wi Fi RF Module S6B User Guide 50 Using sleep mode SPI Using sleep mode SPI When the serial interface is SPI SPI nATTN is used as an attention indicator to tell the SPI master when it has data to send Since SPI
133. rd F x xd v FR f pm a a m 3 o E N ss XBee m E PRO E 5 m E RT m 5 5 The antenna performance improves with a larger keepout area H H Notes 1 Non metal enclosures are recommended For metal enclosures an external antenna should be used 2 Metal chassis or mounting structures in the keepout area should be at least 1 inch 2 54 cm from antenna 3 Maximize distance between antenna and metal objects that might be mounted in keepout area 4 These keepout area guidelines do not apply for Wire Whip antennas or external HF connectors Wire J Whip antennas radiate best over the center of a ground plane J g K REV ECO DESCRIPTION OF CHANGE BY EKD APPR DATE TITLE APPROVALS DATE DESIGNED Keepout Area for DRAWN Embedded PCB Antenna L CHECKED ENGINEER PART NO REV Digl International Inc 1 2 3 4 All rights reserved DO NOT SCALE DRAWING SHEET 1 of I XBee Wi Fi RF Module S6B User Guide 22 XBee Wi Fi module specifications Minimum Keepout Area for PCB Antenna All Layers je 83 82mm A 3300Thou E 3 No metal in keepout All Layers lt N E JE Ai E se Er FT To B o E 3 5 oc roe p Limited routing is permitted in this area such il as connecting pad 35 to Ground However Ground pours are not recommended In this area c Recommended Keepout Area for PCB Antenna All Layers D le 111 79mm I 4400Thou 1 No metal in keepout All Layers
134. rs should be specified with big endian byte ordering When a GPM command is sent to a radio via a unicastthe receiving radio will unicast a response back to the requesting radio s source endpoint specified in the request packet No response is sent for broadcast requests If the source endpoint is set to the DIGI DEVICE endpoint OxE6 or explicit API mode is enabled on the requesting radio then a GPM response will be output as an explicit API RX indicator frame on the requesting node assuming API mode is enabled The format of the response is very similar to the request packet Byte offset in Number of payload bytes Field name General field description 0 1 GPM CMD ID This field is the same as the request field 1 1 GPM STATUS Status indicating whether the command was successful 2 2 GPM BLOCK NUM The block number addressed in the GPM Ranges from 0 to 159 Ox9F 4 2 GPM START INDEX The byte index within the addressed GPM block 6 2 GPM NUM BYTES Then number of bytes in the GPM DATA field 8 Varies GPM DATA Multi byte parameters should be specified with big endian byte ordering The following commands exist for interacting with GPM XBee Wi Fi RF Module S6B User Guide 65 1 0 sampling PLATFORM INFO REQUEST 0x00 A PLATFORM INFO REQUEST frame can be sent to query details of the GPM structure Field name Command specific description GPM CMD ID Should be set to PLATFORM INFO REQUEST 0x00
135. rt if the uploaded data is invalid If the data is valid it will begin installing the application No installation will take place on invalid data Installing the application When the entire ebin file has been uploaded to the GPM ofthe target node a FIRMWARE VERIFY AND INSTALL command can be issued Once the target receives the command it will verify the ebin file loaded in the GPM If itis found to be valid then the module will install the new firmware This installation process can take up to 8 seconds During the installation the module will be unresponsive to both serial and RF communication To complete the installation the target module will reset AT parameter settings which have not been written to flash using the WR command will be lost Things to remember The firmware upgrade process requires that the module resets itself Because of this reset parameters which have not been written to flash will be lost after the reset To avoid this write all parameters with the WR command before doing a firmware upgrade Because explicit API Tx frames can be addressed to a local node accessible via the SPI or UART or a remote node accessible over the RF port the same process can be used to update firmware on a module in either case XBee Wi Fi RF Module S6B User Guide 73 API operation As an alternative to Transparent Operation API Application Programming Interface Operations are available API operation requires that commun
136. rted by NP command specific 16 0x65 because no application header is needed data 17 Ox6C 18 Ox6C l 19 Ox6F o Checksum 20 OxA6 OxFF minus the 8 bit sum of bytes from offset 3 to this byte Send data request Frame Type 0x28 This frame type is used to send a file of the given name and type to Device Cloud Frame fields Offset Example Description Start 0 Ox7E Length 1 2 0x0033 Number of bytes between the length and the checksum API API frame 3 0x28 frame identifier specific m data Frame ID 4 0x55 Identifies the frame for send data response If O then no send data response status will be received Path length 5 0x08 Length of path and file name Path 6 13 TestFile Path and file name Contenttype 14 Ox0A Length of target string up to 16 bytes length Content type 15 24 Text Indicates file type e g text plain text xml or plain application json Transport 25 0x00 Must be 0 to indicate TCP Options 26 0x00 0 overwrite 1 archive 2 append 3 transient data do not store Data 27 53 abcdefg Checksum 54 0x49 OxFF minus the 8 bit sum of bytes 3 52 of this frame XBee Wi Fi RF Module S6B User Guide 88 API frames Device response Frame Type 0x2A This frame type is sent to the serial port by the host in response to the device request 0xB9 It should be sent within five seconds to avoid a timeout error Frame fields Of
137. rting to its configured level See Output Ses RT HARM control on page 59 for a functional description Set time to hold DIO10 Sets how long an output level programmed by bit 10 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description QO 0 0x1770 x 100 ms 0 Set time to hold DIO11 Sets how long an output level programmed by bit 11 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description Set time to hold DIO12 Sets how long an output level programmed by bit 12 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description Set time to hold DIO13 Sets how long an output level programmed by bit 13 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description Set time to hold DIO14 Sets how long an output level programmed by bit 14 of the IO command is held in the selected state before reverting to its configured level See Output control on page 59 for a functional description 0 0x1770 x 100 ms 0 Q2 0 0x1770 x 100 ms 0 Q3 0 0x1770 x 100 ms 0 Q4 0 0x1770 x 100 ms 0 XBee Wi Fi RF Module S6B User Guide 119 AT comman
138. rvice This service primarily provides for XBee configuration It also provides API compatibility for customers who have designed around other XBees It uses UDP to transfer packets to and from port number OxBEE Packets are optionally acknowledged by the service but retries are not available An extra header is added to the packet data to define commands for configuration and serial data transfer The following sections describe how this service can be accessed from a local host or network client CO and DE are used to configure source and destination ports for the serial communication service The XBee application service uses hard coded port OxBEE for both source and destination and there is no option to configure another port Note Do not configure CO and or DE to OxBEE to use the XBee application service Doing so causes an error Al 42 and the transceiver will neither send nor receive data Local host From a local host this functionality is accessed through XBee API frames There are remote AT command frames as well as transmission frames The API frames are listed as follows TXrequest 64 bit TX64 RXindicator 64 bit RX64 This frame is generated by the XBee module Remote AT command General Purpose Memory command XBee Wi Fi RF Module S6B User Guide 41 Local host TX64 and RX64 API frames The intent of the XBee transmit and receive 64 bit API frames is to provide a standardized set of API frames to use for a poin
139. s all bits to binary 1 one or all of the GPM flash blocks The ERASE command can also be used to erase all blocks of the GPM by setting the GPM NUM BYTES field to 0 XBee Wi Fi RF Module S6B User Guide 66 ERASE RESPONSE 0x81 1 0 sampling Field name Command specific description GPM CMD ID Should be set to ERASE 0x01 GPM OPTIONS There are currently no options defined for the ERASE command Set this field to O GPM BLOCK NUM Set to the index of the GPM block that should be erased When erasing all GPM blocks this field is ignored set to 0 GPM START INDEX The ERASE command only works on complete GPM blocks The command cannot be used to erase part of a GPM block For this reason GPM START INDEX is unused set to 0 GPM NUM BYTES Setting GPM NUM BYTES to 0 has a special meaning It indicates that every flash block in the GPM should be erased not just the one specified with GPM BLOCK NUM In all other cases the GPM NUM BYTES field should be set to the GPM flash block size GPM DATA No data bytes should be specified for this command When an ERASE command request has been unicast to a node that node will send a response in the following format to the source endpoint specified in the requesting frame Field name Command specific description GPM CMD ID Should be set to ERASE RESPONSE 0x81 GPM STATUS A 1 in the least significant bit indicates an error occurred All other bits are re
140. s is 192 168 0 103 7 0x00 8 0x00 9 OxCO 10 OxA8 11 0x00 12 0x67 XBee Wi Fi RF Module S6B User Guide 99 API frames Frame fields Offset Example Description API frame Reserved 13 OxFF Unused placeholder specific AT 15 0x44 D Name of the Command command 16 Ox4C L Command 17 0x00 0 OK Status 1 ERROR 2 Invalid Command 3 Invalid Parameter Command If present indicates the value of the requested data parameter value If not present this is not a response to a query command Checksum 18 0x0B Add this value to sum of bytes from byte 3 to here such that result Oxff RX Receive packet IPv4 Frame Type OxBO This frame is used by XBee when RF data is received using the Serial Data service on the port defined by the CO command Example When a module in API mode receives an IPv4 transmission it will produce an RX notification 0xBO and send it out the UART or SPI This example is the response to a UDP transmission to IP address 192 168 0 103 with data Hello from the source address 192 168 0 104 Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB1 0x00 Number of bytes between the length and the checksum API frame API frame 3 OxBO specific identifier dara IPv4 32 bit MSB4 0xCO The address in the example is for a source address source 5 OxA8 of 192 168 0 104 address 6 0x00 7 0x68 16 bit MSB8
141. s responsible for its product to comply with FCC Part 15 Sub B Unintentional Radiators FCC Notices IMPORTANT The XBee Module has been certified by the FCC for use with other products without any further certification as per FCC section 2 1091 Modifications not expressly approved by Digi could void the user s authority to operate the equipment IMPORTANT OEMs must test final product to comply with unintentional radiators FCC section 15 107 amp 15 109 before declaring compliance of their final product to Part 15 of the FCC Rules IMPORTANT The RF module has been certified for remote and base radio applications If the module will be used for portable applications the module must undergo SAR testing This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by
142. sent indicates the requested parameter value value to set the given register If no characters present register is queried Checksum 16 0x99 OxFF minus the 8 bit sum of bytes from offset XBee Wi Fi RF Module S6B User Guide 3 to this byte 81 API frames AT command Frame Type 0x08 Used to query or set module parameters on the local module This API command applies changes after executing the command Changes made to module parameters take effect once changes are applied The API example below illustrates an API frame when modifying the NI parameter value of the module Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB 1 0x00 Number of bytes between the length and the LSB 2 0x05 checksum API frame API frame 3 0x08 specific data identifier Frame ID 4 0x01 AT MSB 5 Ox4E N Command Name Two ASCII characters that command LSB 6 0x49 I identify the AT command Parameter If present indicates the requested parameter value value to set the given register If no characters present register is queried Checksum 7 Ox5E OxFF minus the 8 bit sum of bytes from offset 3 to this byte AT command queue parameter value Frame Type 0x09 This API type allows module parameters to be queried or set In contrast to the AT Command API type new parameter values are queued and not applied until either the AT Command 0x08 API type or the AC Apply Changes co
143. sent in a transmission Note NP returns a hexadecimal value e g if NP returns 0x54 this is equivalent to 84 bytes Also note that the maximum payload is 8 bytes more than the value in the NP parameter when using the native IPv4 frames because an application header does not precede the payload XBee Wi Fi RF Module S6B User Guide 107 Networking Commands Networking Commands AT command Name and description Parameter range Default Device options Set Read device options Bit 0 Enable Device Cloud Bit 1 Enable SoftAP when ID is NULL Bit 2 Enable sending transparent data to Device Cloud Bit 3 Send I O samples to both Device Cloud and to DL if Device Cloud is enabled DO Bit 4 Send transparent data as binary data points Ox03F 1 rather than to a file Bit 5 Replace a Device Cloud file 1 rather than append to a file 0 Bits 6 7 Reserved should be 0 Note In transparent mode if DO is 0x25 and then over 1400 bytes are sent at once the Device Cloud file is overwritten twice losing the first 1400 bytes ID SSID Set read the SSID of the access point which may Up to 31 bytes of NULL be up to 31 ASCII characters printable ASCII 0 IBSS Joiner Network Type Set read network type Network types p AH supported are Infrastructure using an access point and 1 IBSS Creator 2 Ad hoc IBSS 2 Infrastructure IP Protocol Set Read the protocol used for the serial 0 UDP IP communication
144. served at this time GPM BLOCK NUM GPM START INDEX Matches the parameter passed in the request frame GPM NUM BYTES The number of bytes in the GPM DATA field For this command this field will be set to O GPM DATA Example No data bytes should be specified for this command To erase flash block 42 of a target radio with serial number of 0x0013a200407402ac an ERASE packet should be formatted as follows spaces added to delineate fields 7E 001C 11 01 0013A200407402AC FFFE E6 E6 0023 C105 00 CO 01 00 002A 0000 0200 37 Assuming all transmissions were successful the following API packets would be output the source node s serial interface 7E 0007 8B 01 FFFE 00 00 00 76 7E 001A 91 0013A200407402AC FFFE E6 E6 0023 C105 C1 81 00 002A 0000 0000 39 XBee Wi Fi RF Module S6B User Guide 67 1 0 sampling WRITE 0x02 and ERASE THEN WRITbE 0x03 The WRITE command writes the specified bytes to the GPM location specified Before writing bytes to a GPM block it is important that the bytes have been erased previously The ERASE THEN WRITE command performs an ERASE of the entire GPM block specified with the GPM BLOCK NUM field prior to doing a WRITE Field name Command specific description GPM CMD ID Should be set to WRITE 0x02 or ERASE THEN WRITE 0x03 GPM OPTIONS There are currently no options defined for this command Set this field to 0 GPM_BLOCK_NUM Set to the index of the GPM blo
145. service This is the port used by the CO 0 command 1 TCP 0 DHCP MA IP Addressing Mode Set Read the IP addressing mode 0 1 Static TCP timeout Set Read the timeout for connection on TM TCP client sockets If 0 socket closes immediately after 0 OxFFFF x 100 msec 0x64 data sent TCP Server Socket Timeout Set Read the timeout for 0 x000A OxFFFF 0x0258 TS connection on a TCP server socket This is a socket 100 ms whose connection was initiated at the other end 1 minute Infrastructure Mode Selects AP mode 1 or STA mode 2 1 Soft AP Mode CE 2 For more information see Enable Soft AP mode on page 62 XBee Wi Fi RF Module S6B User Guide 2 STA Mode 108 Security commands Security commands AT command Name and description Parameter range Default 0 No security EE Encryption Enable Set Read the encryption enable 1 WPA 0 setting 2 WPA2 3 WEP Security Key Set the security key used for WEP ieee ASCII pi a WPA and WPA2 security This command is write characters ror an only PK cannot be read WERA pes Keys Gan he either 40 bits or 104 bits Note The PK parameter cannot include a comma 40 bit WEP keys are PK because a comma is used to signify the start ofthe entered with 5 ASCII next command when sending multiple commands characters or 10 hex at a time when in command mode A comma can be characters 104 bit WEP included when PK is set through an API fram
146. smission UDP mode If UDP mode is specified in the Transmit IPv4 frame no connection is made to the destination address and port Instead the data is packetized and sent directly providing the source port matches the local port specified by the CO command TCP mode In API mode multiple TCP connections are allowed simultaneously A TCP connection is fully defined by these four entities Local IP address Local port number Remote IP address Remote port number XBee Wi Fi RF Module S6B User Guide 48 Local host When an IPv4 Transmission frame is sent to the module it specifies a destination address and port To send data on an existing TCP connection the destination address and port given in the API frame must match the remote address and port of an existing TCP connection Note that the search for a matching connection ignores the source port number given in the API frame This means that only one TCP connection is allowed per remote port The source port matters in the event that a matching TCP connection is not found If it is 0 then an attempt is made to create a new connection prior to sending the data If not the data is dropped with an error For purposes of the following discussion a client requests a TCP connection of a server and a server accepts a TCP connection request from a client As a client the best strategy is to specify a source port of 0 and a destination port to match the listening socket CO o
147. sponse to ZigBee 0x10 and ZigBee explicit 0x11 transmissions An example of this frame type is given below Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB 1 0x00 Number of bytes between the length and the checksum LSB 2 0x07 API frame API frame 3 Ox8B specific identifier data Frame ID 4 0x01 Frame ID of the correlating transmission Reserved 5 OxFF Hard coded values can be ignored 6 OxFE 7 0x00 XBee Wi Fi RF Module S6B User Guide 94 Frame fields API frame specific data Status Offset Example 0x00 API frames Description 0x00 Success 0x03 Transmission was purged because it was attempted before stack was completely up 0x04 Physical error occurred on the interface with the Wi Fi transceiver 0x21 Transmission timed out awaiting an acknowledgment from the remote device 0x32 Resource Error Either buffers or sockets were depleted preventing a transmission from occurring 0x74 Message not sent because it was too long 0x76 Attempt to create a client socket failed Reserved 0x00 Hard coded value can be ignored Checksum 10 IO data sample RX indicator Frame Type Ox8F 0x76 Add this value to sum of bytes from byte 3 to here such that result Oxff When the module receives an IO sample frame from a remote module it sends the sample out the UART or SPI using this frame type Only modules r
148. t This port is accessed by sending a packet from the client using the UDP protocol on port OxBEE Data sent to this port must have an additional header preceding the data See the following table for the header description Field name Offset Field length Description Number1 0 2 Can be any random number Number2 2 2 Number1 0x4242 Exclusive OR of Number1 and constant 0x4242 PacketlD 4 1 Reserved for later use 0 for now EncPad 5 1 Reserved for later use 0 for now XBee Wi Fi RF Module S6B User Guide 42 Local host Field name Offset Field length Description Command 6 1 0x00 Data ID 0x02 Remote Command 0x03 General Purpose Memory Command 0x04 I O Sample 0x80 Data Acknowledgment 0x82 Response to remote command 0x83 Response to General Purpose Memory Command Command 7 1 bit 0 encrypted if set Reserved for later use options bit 1 set to request an ACK bits 2 7 unused Set to 0 for forward compatibility All of the commands and command responses detailed below are preceded with the above application header Sending configuration commands AT commands can be sent to the XBee Wi Fi module from a network client The following packet structure demonstrates how to query the SSID from a network client Packet fields Offset Example Description Application Number1 0 0x4242 header Number2 2 0x0000 Number1 Number2 0x4242 Pac
149. t to 0 IP address is in hex The data address 5 0x00 example uses address 192 168 0 103 6 0x00 7 0x00 8 OxCO 9 OxA8 10 0x00 11 0x67 RSSI 12 Ox2E RSSI in terms of dB above sensitivity link margin Options 13 0x00 None currently defined RF data 14 0x48 H Up to 1392 bytes of data 15 0x65 e 16 Ox6C I 17 Ox6C 18 Ox6F o Checksum 19 Ox8E OxFF the 8 bit sum of bytes from offset 3 to this Remote command response Frame Type 0x87 byte If a module receives a remote command response RF data frame in response to a Remote AT Command Request the module will send a Remote AT Command Response message out the UART or SPI Example If a remote command is sentto a remote module with an IP address of 192 168 0 103 to set the D1 parameter to 3 digital input the response is shown in the example API frame in the table below Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB 1 0x00 Number of bytes between the length and the checksum LSB 2 OxOD XBee Wi Fi RF Module S6B User Guide 90 API frames Frame fields Offset Example Description API frame APlframe 3 0x87 specific identifier data Frame ID 4 0x01 64 bit 5 0x00 Align IP address to low 32 bits of the field The responder other bytes set to 0 Value is in hex In this address 6 0x00 example the IP address is 192 168 0 103 7 0x00 8 0x00 9 OxCO 10 OxA8 11 0x00
150. t to multipoint network a closed network of XBee Wi Fi modules The format of these frames has been standardized to work with other XBee products such as the API frames of the 802 15 4 module Note The XBee Wi Fi module cannot communicate with an XBee 802 15 4 module Transmitting data The local host uses the TX64 frame to send data to another XBee using this service When the frame is received through the serial port the XBee converts the contents of the frame to a serial data transfer command as defined by the XBee application service Receiving data A received Serial data transfer command will go to the serial port The mode of the serial port will determine the format of the data When in API mode the data will be sent to the host using the RX 64 bit frame Note Itis not recommended to use this service to send data to a network client Use the serial communication service Remote AT command configuration The Remote AT command frame is used to change configuration on a remote XBee See ZigBee remote AT command on page 86 for more information Firmware upgrades Firmware upgrades from the local host can be done by sending ZigBee explicit API frames type 0x11 to the IP address of the desired node with cluster ID 0x23 For details about the format of the explicit frames see Advanced application features on page 54 For details about the sequence of operations to follow for firmware upgrades see Sleep on page 50 Network clien
151. tarts with ADO and continues sequentially for each enabled analog input channel up to AD3 The sampled data set includes 2 bytes of digital I O data only if one or more I O lines on the module are configured as digital I O If no pins are configured as digital I O these 2 bytes are omitted The digital 1 0 data is only relevant if the same bit is enabled in the digital 1 0 mask Analog samples are 10 bit values and aligned on a 16 bit boundary The analog reading is scaled such that 0x0000 represents OV and Ox3FF VREF VREF may be either 1 25 volts or 2 5 volts based on the setting of the AV command where 2 5 volts is the default The analog inputs on the module are capped at Ox3FF Analog samples are returned in order starting with ADO and finishing with AD3 Only enabled analog input channels return data as shown in the example below To convert the A D reading to mV do the following AD mV A D reading converted to decimal VREF 1023 where VREF may be 1250 or 2500 Assuming that AV is set to the default value the reading in the sample frame represents voltage inputs of 2385 14 mV 0x3D0 and 713 59 mV 0x124 for ADO and AD1 respectively Queried sampling The IS command can be sent to a module locally or to a remote module using the API remote command frame see XBee command reference on page 105 for details When the IS command is sent and at least one 1 0 line is enabled as an input or an output the receiving devic
152. telemetry information for automated monitoring and resources accounting systems or security systems 2 3 Maximum mean e i r p density is 10 mW MHz Maximum 100 mW e i r p Indoor applications Ukraine Limited e i r p 100 mW with built in antenna with amplification factor implementation up to 6 dBi Important Note Digi does not list the entire set of standards that must be met for each country Digi customers assume full responsibility for learning and meeting the required guidelines for each country in their distribution market For more information relating to European compliance of an OEM product incorporating the XBee RF Module contact Digi or refer to the following web sites CEPT ERC 70 03E Technical Requirements European restrictions and general requirements Available at http www cept org R amp TTE Directive Equipment requirements placement on market Available at http www cept org Approved antennas When integrating high gain antennas European regulations stipulate EIRP power maximums The following antennas are approved for use with the XBee Wi Fi Module Dipole 2 1 dBi Omni directional Articulated RPSMA Digi part number A24 HABSM PCB Antenna 0 dBi Wire Whip Antenna 1 5 dBi Canada IC This device complies with Industry Canada licence exempt RSS standard s Operation is subject to the following two conditions 1 this device may not cause interference and 2 this d
153. ter 8 230400 9 460 800 OxA 921 600 OX5B9 0X5B8D80 non standard rates up to 6 Mb s 0 No parity Serial Parity Set Read the serial parity NB setting on the module I FEVER Pan a 2 Odd parity Stop Bits Set Read the number of stop 07 1 Stop bit SB bits for th 0 its for the UART 1 2 stop bits Packetization Timeout Set Read number of character times of inter character silence required before packetization Set RO 0 to transmit 0 OxFF RO characters as they arrive instead of 3 buffering them into one RF packet Regardless of how small RO is the inter character silence required to trigger a transmission of the data is 100 usec XBee Wi Fi RF Module S6B User Guide x character times 110 Serial interfacing AT command Name and description Parameter range Default Flow Control Threshold De assert CTS FT when FT bytes are in the UART receive 0x11 0x823 Ox7F3 buffer 0 Disabled 1 CTS Flow Control 3 Digital input 4 Digital output low DIO7 Configuration Select Read options 1 pst for the DIO7 line of the RF module 5 Digital output high 6 RS 485 transmit enable low enable 7 RS 485 transmit enable high enable 0 Disabled 1 RTS flow control DIO6 Configuration Configure options for x the DIO6 line of the RF module 3 Digital input 0 4 Digital output low 5 Digital output high XBee Wi Fi RF Module S6B User Guide 111
154. text on the module label is placed on the outside of the final product 2 XBee Wi Fi Module may only be used with antennas that have been tested and approved for use with this module for details see Antennas approved for use with the XBee Wi Fi Through hole Module on page 129 and Antennas approved for use with the XBee Wi Fi Surface Mount Module on page 133 OEM Labeling Requirements requirements are met This includes a clearly visible label on the outside of the final WARNING The Original Equipment Manufacturer OEM must ensure that FCC labeling A product enclosure Required FCC Label for OEM products containing the XBee Wi Fi S6B Through hole Module Contains FCC ID MCQ XBS6B The enclosed device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions i this device may not cause harmful interference and ii this device must accept any interference received including interference that may cause undesired operation Required FCC Label for OEM products containing the XBee Wi Fi S6B Surface Mount Module Contains FCC ID MCQ S6BSM The enclosed device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions i this device may not cause harmful interference and ii this device must accept any interference received including interference that may cause undesired operation XBee Wi Fi RF Module S6B User Guide 128 United States FCC The integrator i
155. the PCB Note that any additional components between the module and antenna will violate modular certification The RF trace should have a controlled impedance of 50 ohms We recommend using a microstrip trace although coplanar waveguide may also be used if more isolation is needed Microstrip generally requires less area on the PCB than coplanar waveguide Stripline is not recommended because sending the signal to different PCB layers can introduce matching and performance problems It is essential to follow good design practices when implementing the RF trace on a PCB The following figures show a layout example of a host PCB that connects an RF Pad module to a right angle through hole RPSMA jack The top two layers of the PCB have a controlled thickness dielectric material in between The second layer has a ground plane which runs underneath the entire RF Pad area This ground plane is a distance d the thickness of the dielectric below the top layer The top layer has an RF trace running from pin 36 of the module to the RF pin of the RPSMA connector The RF trace s width determines the impedance of the transmission line with relation to the ground plane Many online tools can estimate this value although the PCB manufacturer should be consulted for the exact width Assuming d 0 025 and that the dielectric has a relative permittivity of 4 4 the width in this example will be approximately 0 045 for a 50 ohm trace This trace width is a good fit with
156. the terminal tab and begin normal transparent operation Sleep mode Sleep modes allow the RF module to enter states of low power consumption when not in use The XBee Wi Fi modules support both pin sleep sleep mode entered on pin transition and cyclic sleep module sleeps for a fixed time For both pin sleep and cyclic sleep the sleep level may be either deep sleep or associated sleep See Sleep on page 50 for more information XBee Wi Fi RF Module S6B User Guide 36 802 11 bgn networks Infrastructure networks The main type of wireless network will involve a number of wireless devices called stations talking through a master wireless device known as an Access Point AP for short or STA for short This type of setup is called an Infrastructure or BSS Basic Service Set network Most wireless networks are of this type An example of an infrastructure wireless network is shown below Access Point Root Unit Wired LAN Access Point paa Root Unit Infrastructure wireless Network By default the module operates as a STA in the infrastructure network which means it associates to an AP and all data to and from the module goes through that AP If CE is configured to 1 the module takes the position of an AP in the network allowing STA device to associate to the module operating in what is called Soft AP mode XBee Wi Fi RF Module S6B User Guide 37 Infrastructure networks Ad hoc networks Wireless devices can
157. tion Gain n separation b mode g mode n mode A24 Dipole Half 2 1 dBi Fixed 20 cm N A N A N A HASM wave Mobile 450 articulated RPSMA 4 5 A24 Dipole 2 1 dBi Fixed 20 cm N A N A N A HABSM Articulated RPSMA A24 Dipole Half 2 1 dBi Fixed 20 cm N A N A N A HABUF wave P5I bulkhead mount U FL s 5 pigtail A24 Dipole Half 2 1 dBi Fixed 20 cm N A N A N A HASM wave Mobile 525 articulated RPSMA 5 25 XBee Wi Fi RF Module S6B User Guide 133 United States FCC Omni directional antennas Minimum cable loss power reduction attenuation required Part Type Min number Description Gain Application separation b mode g mode n mode A24 Omni 2 1 dBi Fixed 20 cm N A N A N A F2NF Directional Mobile Fiberglass base station A24 Omni 3 0 dBi Fixed 20 cm N A N A N A F3NF Directional Mobile Fiberglass base station A24 Omni 5 0 dBi Fixed 20 cm N A N A N A F5NF Directional Fiberglass base station A24 Omni 8 0 dBi Fixed 2m N A N A 1 5 dB F8NF Directional Fiberglass base station A24 Omni 9 5 dBi Fixed 2m N A 1 5 dB 1 0 dB F9NF Directional Fiberglass base station A24 Omni 10 dBi Fixed 2m 0 5 dB 2 0 dB 2 5 dB F10NF Directional Fiberglass base station A24 Omni 12 dBi Fixed 2m 2 5 dB 4 0 dB 4 5 dB F12NF Directional Fiberglass base station A24 Omni 15 dBi Fixed 2m 5 5 dB 7 0 dB 7 5 dB F15NF Directional Fiberglass base station A24
158. tion attenuation required Part Type Min number Description Gain Application separation b mode g mode n mode A24 FONF Omni 9 5 dBi Fixed 2m 0 4 dB 2 4 dB 2 4 dB Directional Fiberglass base station A24 Omni 10 dBi Fixed 2m 0 9 dB 2 9 dB 2 9 dB FIONF Directional Fiberglass base station A24 Omni 12dBi Fixed 2m 2 9 dB 4 9 dB 4 9 dB F12NF Directional Fiberglass base station A24 Omni 15dBi Fixed 2m 5 9 dB 7 9 dB 7 9 dB F15NF Directional Fiberglass base station A24 Omni 7 2 dBi Fixed 2m N A 0 1 dB 0 1 dB W7NF Directional base station A24 Omni 7 2 dBi Fixed 2m N A 0 1 dB 0 1 dB M7NF directional Mag mount base station XBee Wi Fi RF Module S6B User Guide 151 United States FCC Panel class antennas Minimum cable loss power reduction attenuation required Part Type Min number Description Gain Application separation bmode gmode n mode A24 P8SF Flat Panel 8 5 dBi Fixed 2m N A 1 4 dB 1 4 dB A24 P8NF Flat Panel 8 5 dBi Fixed 3m N A 1 4 dB 1 4 dB A24 Flat Panel 13 dBi Fixed 4m 3 9 dB 5 9 dB 5 9 dB P13NF A24 Flat Panel 14 dBi Fixed 5m 4 9 dB 6 9 dB 6 9 dB P14NF A24 Flat Panel 15 dBi Fixed 2m 5 9 dB 7 9 dB 7 9 dB P15NF A24 Flat Panel 16 dBi Fixed 2m 6 9 dB 8 9 dB 8 9 dB P16NF A24 19NF Flat Panel 19 dBi Fixed 2m 9 9 dB 11 9dB 11 9dB Yagi class antennas Mi
159. to 4 characters out the UART to clear its FIFO after nRTS is de asserted This implies that the user needs to de assert nRTS by the time its receive capacity is within 4 bytes of full Serial interface protocols The XBee modules support both transparent and API application programming interface serial interfaces Transparent operation When operating in transparent mode the modules act as a serial line replacement All UART data received is queued up for RF transmission When RF data is received the data is sent out through the UART The module configuration parameters are configured using the AT command mode interface Note that transparent operation is not an option when using SPI Data is buffered in the serial receive buffer until one of the following causes the data to be packetized and transmitted Noserial characters are received for the amount of time determined by the RO parameter If RO is zero data is packetized as soon as it is received without delay If RO is non zero the data is packetized after RO character times of no transitions on the DIN pin However if the time required for RO characters is less than 100 microseconds then DIN must still be idle for at least 100 microseconds which is the minimal idle time required for packetizing packets at any baud rate The Command Mode Sequence GT CC GT is received Any character buffered in the serial receive buffer before the sequence is packetized and transmitted bef
160. to query or set module parameters on a remote module For parameter changes on the remote module to take effect changes must be applied either by setting the apply changes options bit or by sending an AC command to the remote Example Send a remote command to query the DL register on a remote module In this example the IP address of the remote is 192 168 0 100 Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB 1 0x00 Number of bytes between the length and the checksum LSB 2 OxOD XBee Wi Fi RF Module S6B User Guide 80 API frames Frame fields Offset Example Description API frame API frame 3 0x07 specific identifier data Frame ID 4 0x01 64 bit 5 0x00 Align IP address to low 32 bits of the field The destination other bytes set to 0 IP address is in hex The address 6 0x00 address in this example is 192 168 0 100 7 0x00 A MAC address may also be in the lower 6 bytes of this field But if the MAC address 8 0x00 doesn t match the module s own MAC 9 OxCO address then this field will be interpreted as an IP address as described above 10 0xA8 11 0x00 12 0x64 Command 13 0x02 0x02 Apply changes on the remote If not set options then the AC command must be sent orthe last remote command sent must set this option AT command MSB 14 0x44 D Command Name Two ASCII characters that identify the AT command LSB 15 Ox4C L Parameter If pre
161. top sending serial data to the module RTS flow control allows the host to signal the module to not send data in the serial transmit buffer out the UART RTS and CTS flow control are enabled using the D6 and D7 commands nCTS flow control The FT command allows the user to specify how many bytes of data can be queued up in the serial transmit buffer before the module asserts CTS low The serial receive buffer can hold up the 2100 bytes but FT cannot be set any larger than 2083 bytes leaving 17 bytes that can be sent by the host before the data is dropped XBee Wi Fi RF Module S6B User Guide 30 Serial communication By default FT is 2035 0x7F3 which allows the host to send 65 bytes to the module after the module asserts CTS before the data is dropped In either case CTS will not be re asserted until the serial receive buffer has FT 17 or less bytes in use nRTS Flow Control If RTS flow control is enabled D6 command data in the serial transmit buffer will not be sent out the DOUT pin aslong as nRTS is de asserted set high The host device should not de assert nRTS for long periods of time to avoid filling the serial transmit buffer If an RF data packet is received and the serial transmit buffer does not have enough space for all of the data bytes the entire RF data packet will be discarded Note If RTS flow control is enabled and the XBee is sending data out the UART when nRTS is de asserted set high the XBee could send up
162. unning API mode will be able to receive IO samples Example The following is the IO sample response from a radio at IP address 192 168 0 103 reporting one active DIO DIO8 and one active analog input AN1 Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB 1 0x00 Number of bytes between the length and the LSB 2 0x13 checksum API frame API frame 3 Ox8F specific identifier data 64 bit 4 0x00 Align IP address to low 32 bits of the field The source other bytes set to 0 IP address is in hex The address example uses address 192 168 0 103 5 0x00 6 0x00 XBee Wi Fi RF Module S6B User Guide 95 API frames Frame fields Offset Example Description specific BOUE data address 8 OxCO 9 OxA8 10 0x00 11 0x67 RSSI in 12 Ox2E terms of link margin Receive 13 0x00 None currently defined options Number 14 0x01 Number of sample sets included in the payload of Always set to 1 samples Digital MSB15 0x01 Bitmask field that indicates which digital IO lines on Channel the remote have sampling enabled if any In this Mask ERE SERIO example DIOS is active Analog 17 0x81 Bitmask field that indicates which analog IO lines Channel on the remote have sampling enabled if any The Mask most significant bit signals that the Vcc value is included in the frame In this example Analog input 1 and Vcc are active Digital MSB18 0x
163. ured 0x24 Encryption key invalid either NULL or invalid length for WEP Al 0 OxFF read only 0x27 SSID was found but join failed 0x40 Waiting for WPA or WPA2 Authentication 0x41 Module joined a network and is waiting for IP configuration to complete which usually means it is waiting for a DHCP provided address 0x42 Module is joined IP is configured and listening sockets are being set up OxFF Module is currently scanning for the configured SSID Note New non zero Al values may be added in later firmware versions Applications should read Al until it returns 0x00 indicating a successful startup Device Cloud indicator 0 Device cloud is connected DI 1 Initial state 0 4 2 Attempting to connect to Device Cloud 3 Disconnecting from Device Cloud 4 Device cloud not configured XBee Wi Fi RF Module S6B User Guide 122 AT command AS Name and description Active Scan Scan for access points in the vicinity This command may be issued in command mode or in API mode In either case the following information is returned for each access point found 02 Indicates scan type of 802 11 in this format unique to S6B CH Channel number in use by access point ST Security type where 00 open 01 WPA 02 WPA2 and 03 WEP LM Link Margin Signal strength in dB above sensitivity ID SSID of access point found When this command is issued in command mode the above rec
164. ut Request to Send Flow Control GPIO 17 DIO3 AD3 SPI nSSEL Both Disabled AnalogInput GPIO SPI Slave Select 18 DIO2 AD2 SPI CLK Both Disabled AnalogInput GPIO SPI Clock 19 DIO1 AD1 Both Disabled Analog Input GPIO SPI SPI nATTN Attention 20 DIOO ADO CB Both Disabled Analog Input Commissioning Button GPIO Pin assignment for the XBee Wi Fi Surface Mount module Low asserted signals are distinguished with a lower case n before the signal name Pin Name Direction Default state Description 1 GND Ground 2 VCC Power Supply 3 DIO13 DOUT Both Output UART Data Out 4 DIO14 DIN nCONFIG Both Input UART Data In 5 DIO12 Both Disabled GPIO 6 nRESET Input Input Module Reset 7 DIO10 RSSI PWM Both Output RX signal strength PWMO indicator GPIO 8 DIO11 PWM1 Both Disabled GPIO 9 Reserved Do Not Connect 10 DIO8 nDTR Both Input GPIO SLEEP_RQ 11 GND Ground XBee Wi Fi RF Module S6B User Guide 18 XBee Wi Fi module specifications Pin Name Direction Default state Description 12 DIO19 SPI nATTN Both Output GPIO SPI Attention 13 GND Ground 14 DIO18 SPI CLK Both Input GPIO SPI Clock 15 DIO17 SPI nSSEL Both Input GPIO SPI Slave Select 16 DIO16 SPI SI Both Input GPIO SPI Slave In 17 DIO15 SPI SO Both Output GPIO SPI Slave Out 18 Reserved Do Not Connect 19 Reserved Do Not Connect 2
165. utput Control 117 Diagnostics interfacing 121 AT command options 124 Sleep commands 124 Execution commands 125 Module support XCTU configuration tool 127 Serial firmware updates 127 Regulatory compliance 127 Agency certifications United States FCC 128 Europe ETSI 136 OEM labeling requirements 137 Restrictions 137 Approved antennas 138 Canada IC 138 Labeling requirements 139 Transmitters with detachable antennas 139 Australia C Tick 140 Brazil ANATEL 140 Manufacturing information for surface mount XBee Recommended solder reflow cycle 141 Recommended footprint 142 Common footprint for Through hole and Surface Mount 143 Reworking 143 XBee Wi Fi RF Module SB6 User Guide Glossary of terms Definitions 144 XBee Wi Fi RF Module SB6 User Guide Overview The XBee wi Fi RF module provides wireless connectivity to end point devices in 802 11 bgn networks Using the 802 11 feature set these modules are interoperable with other 802 11 bgn devices including devices from other vendors With XBee users can have their 802 11 bgn network up and running in a matter of minutes The XBee Wi Fi modules are compatible with other devices that use 802 11 bgn technology These include Digi external 802 11x devices like the ConnectPort products and the Digi Connect Wi SP as well as embedded products like the ConnectCore series and Digi Connect series of products Learn more about these products at www digi com products
166. xample Checksum 8 OxFO OxFF minus the 8 bit sum of bytes from offset 3 to this byte Transmission status Frame Type 0x89 RF transmission status messages are sent from the module in response to transmission attempts Example The following API frame is returned when a successful transmission occurs on an API transmission using frame ID 01 Frame fields Offset Example Description Start 0 Ox7E delimiter Length MSB1 0x00 Number of bytes between the length and the checksum LSB 2 0x03 API frame API frame 3 0x89 specific identifier data TE Frame ID 4 0x01 Identifies the frame for which status is being reported This number corresponds with the Frame ID provided in the transmission If that frame ID was 0 then this frame will not be generated XBee Wi Fi RF Module S6B User Guide 92 API frames Frame fields Offset Example Description API frame Status 5 0x00 0x00 Success specific aes 0x03 Transmission was purged because it was attempted before stack was completely up 0x04 Physical error occurred on the interface with the Wi Fi transceiver 0x21 TX64 transmission timed out awaiting an acknowledgment from the remote module 0x32 Resource Error Either buffers or sockets were depleted preventing a transmission from occurring 0x74 Message not sent because it was too long 0x76 Attempt to create a client socket failed 0x77 TCP connection to given IP address
167. y ebin file for both serial and over the air firmware upgrades These firmware files are available on the Digi Support website The contents of the ebin file should be sent to the target radio using general purpose memory WRITE commands The entire GPM should be erased prior to beginning an upload of an ebin file The contents of the ebin file should be stored in order in the appropriate GPM memory blocks The number of bytes that are sent in an individual GPM WRITE frame is flexible and can be catered to the user application Example If the size of the ebin file is 217 088 bytes then it could be sent to the module in 1024 byte blocks as follows CPT BLOCK NUM GPM START INDEX GPM NUM BYTES ebin bytes 0 0 1024 0 to 1023 0 1024 1024 1024 to 2047 0 2048 1024 2048 to 3071 0 3072 1024 3071 to 4095 1 0 1024 4096 to 5119 1 1024 1024 5120 to 6143 52 1024 214 016 to 215 039 52 2048 215 040 to 216 063 52 3072 216 064 to 217 087 XBee Wi Fi RF Module S6B User Guide 72 Over the air firmware upgrades Verifying the new application For an uploaded application to function correctly every single byte from the ebin file must be properly transferred to the GPM To guarantee that this is the case GPM VERIFY functions exist to ensure that all bytes are properly in place The FIRMWARE VERIFY function reports whether or not the uploaded data is valid The FIRMWARE VERIFY AND INSTALL command will repo

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