STM 100 User Manual
Contents
1. ere p EE LSS pepe 808 em pem pepe pn charging time h ae Charging at 1000 x w Charging at 200 Ix Charging at 50 Ix Figure 5 Graphs of the goldcap charging process typ 25 C Measured with white light LEDs illustration of the illumination level as fluorescent lamp equivalent EL Measured with 100s wake up timer EnOcean GmbH W Heller Page 18 of 43 STM 110 User Manual V1 2 The power of unused energy enocean Voltage V SC1 V 1 sec timer N Operating time in darkness h V SC1 V Voltage 30 25 20 15 10 5 Operating time in darkness h 99 Voltage V SC1 V 100 sec timer 150 120 90 60 30 Operating time in darkness h Figure 6 STM110 operation time in darkness typ 25 C EnOcean GmbH W Heller Page 19 of 43 STM 110 User Manual V1 2 The power of unused energy enocean 2 7 Radio Telegram of STM 11x Frequency range and modulation scheme The STM 11x operates the 868 3 MHz radio channel 868 0 868 6 MHz which is exclusively released for short time data transmission in Europe Timing conditions can be found in chapter 3 8 of this paper Because of the very low radiated field strength on average products based on STM 11xC 315 0 MHz can be approved in the USA and in Canada The approval requirements can be fo2. Minimum 30 V 1 1 uA Minimum 30 V 2 9 uA 2 727 EL Electro Luminescent Lamp NOTICE THE INFORMATION CONTAINED IN THIS DOCUMENT IS THE PROPERTY OF SINONAR CORPORATION NO PART OF THIS DOCUMENT MAY BE PHOTOCOPIED REPRODUCED OR TRANSLATED TO ANOTHER LANGUAGE WITHOUT PRIOR WRITTEN CONSENT OF SINONAR CORPORATION SINONAR COPORATION PAGE 2 OF 2 EnOcean GmbH W Heller Page 41 of 43 STM 110 User Manual V1 2 The power of unused energy enocean IYS LON OQ HYHOHIS zz00cF AINO 328333138 Y amp L A0 a ooz 13 Hano presse v O AQ Y 6 AUE NOWYH3d0 Toop ummy rqumg spoa p Onooz 13 1a 0100 Wla M m1 A zapa e 94122113 SAMIR IF SOS Wwe f Sua 12qumu 3poa F error SUIT A yng l TEF 00919 842843 mapana ASH E noz 13 HAREA nooz 13 OM SHIMYAH 002 13 Wid 73 Z 9429413 Dery apa NYNONIS 0s0 v E0F0 r oanoaga p wm EOFTT BG 1SESs _ NVNONIS _ C OFO EL Shoes a ORDEN NS H m 5 T acs See LVOOWHAO Ssv IO E OFF OTO0 S Bary 301 LVOO83AO 301 ONILHOI 73 words 01002 13 wold
3. RF Sensor Transmitter Module STM 11x STM 11xC User Manual V1 2 July 2007 The power of unused energy enocean Revision History The following major modifications and improvements have been made to the initial version of the document V1 0 Version Major Changes Published by EnOcean GmbH Kolpingring 18a 82041 Oberhaching Germany www enocean com info enocean com phone 49 89 6734 6890 EnOcean GmbH all Rights Reserved Important This information describes the type of component and shall not be considered as assured characteristics No responsibility is assumed for possible omissions or inaccuracies Circuitry and specifications are subject to change without notice For the latest product specifications refer to the EnOcean website http www enocean com As far as patents or other rights of third parties are concerned liability is only assumed for modules not for the described applications processes and circuits EnOcean does not assume responsibility for use of modules described and limits its liability to the replacement of modules determined to be defective due to workmanship Devices or systems containing RF components must meet the essential requirements of the local legal authorities The approval requirements described in this document are of best knowledge without any warranty The modules must not be used in any relation with equipment that supports directly or indirectly human health or life o
4. This telegram contains the SW version of the module Command encoding Bit 7 Bit 0 SW Version Byte3 SW Version Byte2 SW Version Byte1 SW Version ByteO SW Version Byte3 0 Software version MSB first INF SYS AD THRES Description This telegram contains the current threshold values at the analog inputs which lead to a radio transmission Command encoding Bit 7 Bit 0 AD 2 MIN VARIATION AD 1 MIN VARIATION AD O MIN VARIATION AD 2 MIN VARIATION Treshold at AD 2 0 0 LSB AD 1 MIN VARIATION Treshold at AD 1 0 0xFF LSB AD O MIN VARIATION Treshold at AD 0 0 0 LSB EnOcean GmbH W Heller Page 25 of 43 STM 110 User Manual V1 2 The power of unused energy enocean OK SYS WR Description This message is sent after successful execution of a user request Command encoding Bit 7 Bit 0 ERR SYS WR Description This message is sent if the execution of a user request has failed Command encoding Bit 7 Bit 0 EnOcean GmbH W Heller Page 26 of 43 STM 110 User Manual V1 2 The power of unused energy enocean 2 9 Serial Data Reception via Receiver Modules RCM 120 RCM 130C For a detailed description please refer to the User Manuals of RCM 120 and RCM 130C Type of STM 11x protocol which is seen at the serial outputs of the receiver modules is ABS 4 Byte Sensor Description of STM 11x radio data content ORG 7 dec always EnOcean module type ABS
5. DATA BYTE3 Value of AD 2 analog input DATA BYTE2 Value of AD 1 analog input DATA BYTE1 Value of AD 0 analog input DATA BYTEO Digital sensor inputs as follows Bit 7 Bit O ID BYTE3 module identifier Byte3 ID BYTE2 module identifier Byte2 ID BYTE1 module identifier Byte1 ID BYTEO module identifier ByteO In case manufacturer ID device profile and type have been stored in the module the following telegram will be seen on the RCM 120 130C serial interface if DI 320 Description of STM 11x learn telegram ORG 7 dec always EnOcean module type 4 5 DATA BYTEO 3 see below LRN 1 LRN 0 DIO DI2 current status of digital inputs Profile Type Manufacturer ID defined by manufacturer ID BYTE3 module identifier Byte3 ID BYTE2 module identifier Byte2 ID BYTE1 module identifier Byte1 ID BYTEO module identifier ByteO Data_Byte2 Data_Bytel Profile Type Manufacturer ID LRN Type RE1 6 Bit 7 Bit 11 Bit 1 Bit 1Bit 1Bit 1Bit 1Bit 1Bit 1Bit 1Bit With this special learn telegram it is possible to identify the manufacturer of a device and the profile and type of a device There is a list available describing the functionalities of the respective products Please contact EnOcean to receive this list EnOcean GmbH W Heller Page 27 of 43 STM 110 User Manual V1 2 The power of unused energy enocean 3 APPLICATIONS INFORMATION 3 1 Module M
6. A radio telegram is always transmitted over only after wake up via WAKE pins change Resistance to GND lt 100 Q compared to STM100 Switch over time lt 1ms Minimum time between wake signals 7ms Pins should be connected to V SCI if not needed in application max external allowed leakage current 100pA Encoding input for processor wake up Pins should be left open or cycle time 1 10 100 or 110 seconds connected to GND approximately Resistance to GND lt 100 Cyclic wake up time value strongly depends on actual power supply voltage and temperature up to 20 Encoding input for determining the Pins should be left open or number of cyclic wake up signals that connected to GND trigger the Presence Signal Every Resistance to GND lt 1000 wake up signal or every 10 or every Input impedance gt 100kQ 100 or no presence signal Module power supply output available 3 0V 3 2 6ms during wake up phase to drive an Ivou 1 mA max external sensor circuitry by the user Also used for starting serial mode EnOcean GmbH W Heller Page 11 of 43 STM 110 User Manual V1 2 The power of unused energy enocean Reference voltage output available 2 05 V 3 2 6ms during wake up phase to drive an Iyrer 1 mA max external sensor circuit by the user Output for optional external LED to 3 0 V 3 2 mA max indicate every telegram transmission source impedance 470 41 s
7. aerated concrete Typically 20m range through max 3 walls e Ferroconcrete walls ceilings Typically 10m range through max 1 ceiling e Fire safety walls elevator shafts staircases and supply areas should be considered as screening The angle at which the transmitted signal hits the wall is very important The effective wall thickness and with it the signal attenuation varies according to this angle Signals should be transmitted as directly as possible through the wall Wall niches should be avoided Other factors restricting transmission range e Switch mounted on metal surfaces up to 30 loss of transmission range e Hollow lightweight walls filled with insulating wool on metal foil e False ceilings with panels of metal or carbon fiber e Lead glass or glass with metal coating steel furniture The distance between EnOcean receivers and other transmitting devices such as computers audio and video equipment that also emit high frequency signals should be at least 0 5m 3 4 Connecting the solar cell The supplied solar cell has been designed especially for maximum module performance at smallest dimensions The active solar area is divided into two to provide independent module power supplies e V 5 1 Main power supply input Must be connected to the small active area of the solar cell or to another external energy source respectively e V SC2 Goldcap charging input Must be connected to big active area of solar cell The sola
8. receive information via the USR DI 3 pin and transmit information via the USR TX DI 2 pin It will not react on WAKE signals or timer interrupts while in serial mode In order to terminate the serial mode the LED pin has to be connected to GND EnOcean GmbH W Heller Page 21 of 43 STM 110 User Manual V1 2 The power of unused energy enocean Serial protocol The data rate is 9600 baud 1 start bit 1 stop bit LSb first The inter byte time out is 50ms The default logic value is 1 3V Byte gt VETE E PREIS Bit Bit Bit Time Time Time A serial command consists of 14 bytes as shown in the following HEADER ORG DATA BYTE5 DATA BYTE6 CHECKSUM SYNC BYTE1 8 bit OxA5 fixed SYNC BYTEO 8 bit Ox5A fixed HEADER 8 bit Ox8B telegram sent from STM OxAB telegram sent to STM ORG 8 bit 0 255 telegram type see description of commands DATA BYTEO 8 8 bit 0 255 information CHECKSUM 8 bit 0 255 checksum Last 8LSB from addition of all octets except sync bytes and checksum EnOcean GmbH W Heller Page 22 of 43 STM 110 User Manual V1 2 of unused energy enocean Command list WR SYS AD THRES Description With this command the user can modify the threshold values at the analog inputs which lead to a radio transmission The default values are 6LSB on AD 0 5LSB on AD 1 14 LSB on AD 2 The module will answer with OK SYS WR or E
9. temporarily during telegram transmission EnOcean GmbH W Heller Page 10 of 43 STM 110 User Manual V1 2 The pawer of unused energy EY enocean 2 2 Pin Description and Operational Characteristics For maximum ratings please refer to chapter 2 3 Pin No Symbol Function Operational Characteristics 5 AD O Analog inputs sampled at every wake Sample moment after wake up 6 AD 1 up 1 7 ms 2 6 ms 7 AD 2 Resolution 8 bit The analog input values are transmitted Input impedance gt 100kQ as sensor data bytes 1 bit V REF 256 8mV AD O DATA BYTE1 Accuracy vs V REF 25 typ AD 1 DATA BYTE2 2LSB 4LSB AD_2 DATA_BYTE3 Relevant input change gt 5 LSB of AD_1 gt 6 LSB of AD 0 gt 14 LSB of AD_2 These default values may be changed See page 23 Digital inputs sampled at every wake Sample moment after wake up up 1 7 ms 2 6 ms Real digital TTL input with internal Digital inputs are transmitted within pull up change compared to sensor DATA BYTEO least significant 4 5 100 bits DI_O Bit 0 DI_1 Bit 1 DI_2 LOW voltage lt 0 45 V Bit 2 DI 3 Bit3 HIGH voltage 2 45V Input impedance gt 100 DI 2 and DI 3 are also used as serial interface pins for the configuration of the module See page 23 2 2 1 S 4 2 3 WAKE A signal change of WAKE inputs stops Differential input capacitive T WAKE sleep mode immediately connect to GND via switch
10. RR SYS WR Command encoding Bit 7 Bit AD 2 MIN VARIATION AD 1 MIN VARIATION AD O MIN VARIATION AD 2 MIN VARIATION Treshold at AD 2 0 0xFF LSB AD 1 MIN VARIATION Treshold at AD 1 0 0xFF LSB AD O MIN VARIATION Treshold at AD 0 0 0xFF LSB OxXX Ignored field A reduction of the threshold values may lead to a higher number of transmissions and therefore increased energy consumption The measurement accuracy versus V REF is typ 215 max 4LSB RD SYS MEM Description With this command the user can retrieve all the configuration data from the module The module answers with 3 telegrams e INF SYS SW VERSION e INF SYS ID DEV MAN e INF SYS AD THRES EnOcean GmbH W Heller Page 23 of 43 STM 110 User Manual V1 2 The power of unused energy enocean Command encoding Bit 7 Bit 0 OxXX ingored field INF SYS ID DEV MAN Description This message contains the manufacturer ID and the device profile and type Command encoding Bit 7 Bit 0 oxo Data Byte3 0 as follows _Byte3 i ta Byte2 Data _Byte1 PROBAT ID ID_Byte3 0 STM11x ID bytes In order to prevent fraudulent use the commands for writing manufacturer ID device profile and type to the module are only available to customers signing an agreement with EnOcean EnOcean GmbH W Heller Page 24 of 43 STM 110 User Manual V1 2 The power of unused energy enocean INF SYS SW VERSION Description
11. ad wire Weld the tin pot again and put the lead wire into the inside of tin pot Take off the solder iron tip Finish this step within 2 second also Soldering operation on the solar cell shall be non destructive At any time only make the soldering iron tip contact the copper paste of the solar cell less than 2 seconds e Attention o Hold the soldering iron at an angle of 30 to 45 with the solar cell in the welding process o Lead wire is in the contact with the copper paste at an angle of 15 o Make sure the welding process not more than the time limit and the lead wire in good contact with copper paste through the solder Please watch out the loose contact between the lead wire and the copper paste if any Do not move the lead wires and solar cell before cooling the tin pots Weld soldering is always with smooth surface and with shine e Test criteria o Pull strength in vertical direction more than 500 gram o Pull strength in horizontal direction more than 200 gram Note 1 For pull strength test the lead wire used should be 28 30 AWG multi threads stranded type Note 2 Lead wire breakage is excluded e Operation illustration Some solder Golder HH NY N f Soldering iron L Less than 2 sec Temperature meter Some solder Lead SOLAR CELL SN Less than 2 sec The function of the solar module may be impaired by exceeding the recommended s
12. after long term storage of modules without energy supply It may take up to one day of charging until the full capacitance is recovered Continuous operation at temperatures higher than 50 may decrease the capacitance of the Goldcap This will result in shorter charging times and shorter operating times in total darkness EnOcean GmbH W Heller Page 8 of 43 STM 110 User Manual V1 2 of unused energy enocean Power control The power control supervises V SC1 supply and charging status of the energy store It controls the power supply for wake up timer microprocessor HF transmitter and the supply outputs Power supply outputs Two power supply outputs are available a V OUT b V REF stabilized reference voltage The outputs are active after wake up during the active state of the module to drive an external sensor user circuitry Wake up timer The wake up timer provides user programmable wake up time intervals for activating the processor and an external wake up opportunity WAKE pins Features e Extremely low power consumption during sleeping time period e Cyclic processor wake up configurable by user through external pin configuration 0 CW 1 e The sleep mode can be terminated immediately by changing the pin status of the differential WAKE inputs Note that the WAKE inputs are part of a special capacitor circuitry that offers lowest operating power consumption current flow at switching ov
13. al 1495319 1HOHS SOVLIOA lin28IO H3dO Page 42 of 43 STM 110 User Manual V1 2 EnOcean GmbH W Heller The power of unused energy 6 DECLARATION OF CE CONFORMITY EnOcean GmbH Kolpingring 18a The power of unused energy D 82041 Oberhaching enocean www enocean com Declaration of Conformity EnOcean GmbH Kolpingring 18a D 82041 Oberhaching Germany Declare under our sole responsibility that the following labeled product Transmitter STM110 to which this declaration relates is when used according to specification in conformity with the technical requirements of the standards and the provisions of the essential requirements of the Directives detailed below Directives Electromagnetic Compatibility Directive 89 336 EC Radio and Telecommunications Terminal Equipment Directive R amp TTE 1999 5 EC Standards ETSI EN 301 489 1 2005 09 ETSI EN 301 489 3 2002 08 SRD class 2 ETSI EN 300 220 3 2000 09 Recommendations ERC Recommendation 70 03 2005 11 Place of issue Oberhaching Date of issue 5 April 2007 Quality Manager General Manager Manfred Schmelig Markus Brehler Wet EnOcean GmbH W Heller Page 43 of 43 STM 110 User Manual V1 2
14. cean 1 3 Technical Data Power supply Solar Power Generator discrete optical cell or 2 2 5 0V external Frequency transmission power 868 3 MHz or 315 0 MHz 10 mW max Data rate modulation type 125 kbps ASK Transmission range 300m free field typ 30m indoor Module identifier eeeeennnnn nn individual 32 bit ID factory programmed EnOcean telegram type 4BS Four Byte Sensor Telegram packet length 1 2 ms 5 No of redundant packets 3 packets within about 40ms delay effected at random Input channels 3 x analog inputs 8 bit resolution 4 x digital inputs Spontaneous wake up differential external trigger signal minimum wake interval 7ms Cyclic wake up user configurable every 1 10 100 or 110 s tolerance 20 Presence signal user configurable every wake up signal every 10 or every 100 Illumination 100 Ix up to 100 000 Ix Operation startup time with empty energy store 10 min 400 Ix Operation time during total darkness sss gt 60h 1 storage
15. ced to 70 of nominal value of the Goldcap is reduced from 100 000 h to 5 000 h when the temperature is raised from 25 to 65 1 6 Ordering Information EnOcean Ordering Code Frequency Solar Cell STM 110 3001 0110 868 3 MHz Included STM 111 3001 D111 868 3 MHz included EnOcean GmbH W Heller Page 7 of 43 STM 110 User Manual V1 2 The power of unused energy enocean 2 FUNCTIONAL DESCRIPTION 2 1 Block Diagram DI x and AD x input values are transmitted If wake up and an input value has changed At wake up and presence signal time V SC1 V SC2 ANT whip Goldcap RF Transmitter LED Power Data Power control amp Processor DI O wake up timer power on DI 1 WAKE Spontaneous Ready NM 15 WAKE m AD 0 Presence Signal mE AD 1 CW 0 every 100th AD 2 every 10th V OUT V REF GND CPO CP 1 Figure 3 STM 11x block diagram Module power supply The supplied solar cell has been designed especially for the STM 11x for maximum module performance at smallest dimensions The active solar area is divided into two to provide independent module power supplies e V SC1 Main power supply input Must be connected to the STM 11x solar cell small active area or by another external energy source respectively e V SC2 Goldcap charging input by connecting to the STM 11x solar cell big active area The capacitance of the Goldcap may be reduced
16. ended EnOcean GmbH W Heller Page 28 of 43 STM 110 User Manual V1 2 of unused energy enocean 3 2 Antenna Mounting Positioning and choice of receiver and transmitter antennas are the most important factor in determining system transmission range The STM11x STM11xC transmitter module is supplied with a soldered whip antenna as standard By using that antenna very compact sensor equipment can be implemented with good radio transmission characteristics For mounting the antenna some notes should be considered to optimize system performance For best transmitter performance the space immediately around the antenna has to be strictly considered since this has a strong influence on screening and detuning the antenna The antenna should be drawn out as far as possible and must be never cut off Mainly the far end of the wire should be mounted as far as possible away from all metal parts PCB strip lines and fast logic components e g the STM microprocessor Don t short the whip 2 4 For a good antenna performance don t roll up or twist the whip and please draw attention to an overall whip distance of at least 10 mm 20 mm is better from any PCB strip ground plane and conductive part or electric part Note that whip antennas do not show any directional effects under free field radio wave propagation conditions spot wise radiator The RSSI voltage output of the receiver module can be used for evaluating the in
17. er time only WAKE and WAKE always have to be operated via switch over as shown in the following WAKE WAKE GND Figure 4 External WAKE pin circuit A radio telegram is always transmitted after wake up via WAKE pins change compared to STM100 After transmission the presence signal counter is reset See chapter 2 5 for configuration of wake up cycle times GmbH W Heller Page 9 of 43 STM 110 User Manual V1 2 The power of unused energy enocean Processor Controls all functionalities after wake up First the values of all measurement inputs are sampled After that RF signal transmission is triggered if one or more of the following conditions are met a One of the input values has changed since the last radio transmission one of the 4 digital inputs has changed or one of the 3 analog inputs has changed equal to or more than a defined value of the total measurement range or b Presence Signal time that means number of wake ups that did not cause a radio transmission has been counted to a user configurable number CP 0 and CP 1 or C The wake up has been triggered via the WAKE pins After every RF transmission all measurement values are stored for data comparison at next wake up time See chapter 2 5 for configuration of presence signal timing RF transmitter The radio transmitter is powered up by the processor when the sending condition is positive The output LED is activated
18. fluence of intuitive RF optimizations 0 8 tinned N bared twisted and tinned STM11x L 89 2 mm color blue STM11xC L 242 2 mm color orange Cu wire according to VDE 0812 or 0245 1 5 or CI 6 Insulation PVC mixture TI2 according to VDE 0207 Figure 8 Specification of the whip antenna EnOcean GmbH W Heller Page 29 of 43 STM 110 User Manual V1 2 The power of unused energy enocean 3 3 Transmission Range The main factors that influence the system transmission range are type and location of the antennas of the receiver and the transmitter type of terrain and degree of obstruction of the link path sources of interference affecting the receiver and dead spots caused by signal reflections from nearby conductive objects Since the expected transmission range strongly depends on this system conditions range tests should categorically be performed before notification of a particular range that will be attainable by a particular application The following figures for expected transmission range are considered by using a PTM a STM or a TCM radio transmitter device and the RCM or the TCM radio receiver device with preinstalled whip antenna and may be used as a rough guide only e Line of sight connections Typically 30m range in corridors up to 100m in halls e Plasterboard walls dry wood Typically 30m range through max 5 walls e Brick walls
19. hort flashing 3 x 1 2 ms within 40 ms Also used for starting serial mode Main power supply input Connect When using other energy source V_SC1 in series with a Schottky diode of than the supplied solar panel see Type BAS 125 to SOL1 of the STM 11x chapter 3 6 solar cell smaller area see Figure 9 2 2 5 0V Or connect to another external energy source respectively Goldcap charging input Connect V SC2 For use with the solar cell only Vg in series with a Schottky diode of Type 5 0 V BAS 125 to SOL2 of the STM 11x solar cell bigger area see Figure 9 Whip antenna 4 Please find recommendations on antenna mounting in chapter 3 2 Never connect input like CP_0 1 AD 0 2 DI 0 3 to a permanent supply voltage These inputs should be always left open connected to GND or connected to the own V OUT and or V REF active only during measurement time Otherwise they would permanently draw current from the permanent power supply and could also damage the device see absolute maximum ratings 2 3 below If such a function is absolutely needed please insert a diode to avoid the problem For socket positions see Figure 2 2 3 Absolute Maximum Ratings non operating Symbol Parameter _ Units 5 1 SC2 Input voltage 0 55 V V_SC1 Input current ripple 95 V_SC2 Jnpucurentrple 02 LED V REF V OUT Input voltage while uC not acti
20. ignals On manually triggered wake up the module may according to FCC 15 231 a transmit a control signal including data according to 01 290 It may be possible to design a device that sends data signals under one set of provisions and control signals under the other EnOcean GmbH W Heller Page 38 of 43 STM 110 User Manual V1 2 The power of unused energy enocean 4 DEVELOPMENT TOOLS 4 1 Evaluation Kit EVA 120 EVA 120C EVA 120 is an evaluation kit for the solar powered sensor module STM110 EVA 120 contains an evaluation board a USB adapter and an STM110 module The evaluation board is designed to allow easy evaluation of STM110 product features and to support the development of customer specific 3 products based STM110 The main B mane features of the evaluation board are TA EJ GI E E E CI E E C Os listed below pui Sony jb send dezi A US version for 315MHz is also avaliable EVA 120C contains an STM 110C module Features of the evaluation board Supply of STM110 via solar cell battery or external power supply External control of charge discharge cycles Optical interface for WAKE inputs Push button connected to WAKE inputs Push button to initiate learn telegram RS232 interface and USB adapter for configuration of the module Jumpers for setting wake and transmit cycles Potentiometers to set analog values jumpers for digital i
21. is filled 1000 Ix 4 2V in Goldcap RF transmission every 17 min 100s wake up temperature 25 C Goldcap formatted Ext power supply output 3 0 V 3 IMA max 2 6ms during wake up time Ext voltage reference output 2 05V 3 1 max 2 6ms during wake up time Input sample time after wake up HH 21 7 ms Transmitting indication output LED 3 0V 3 2mA max x 1 2 ms within 40ms A change of WAKE pin status forces the onboard controller instantly to check all current analog and digital input values In addition a user programmable cyclic wake up is provided After wake up a radio telegram input data unique 32 bit sensor ID checksum is transmitted in case of a change of any digital input value compared to the last sending or in case of a significant change of measured analog values gt 5LSB of AD 1 input gt 6LSB of AD O or gt 14LSB of AD 2 In case of a triggered wake up a radio telegram is sent in any case In case of no relevant input change a presence signal is sent after a user configurable number of wake ups to announce all current input values sign of life Between the wake up phases the module is in sleep mode for minimum power consumption There is a serial interface which allows to configure several parameters of the module Threshold values of the AD inputs which lead to immediate radio transmission Manufacturer code information about ma
22. it conditions are claimed no STM 11xC module approval is possible in general The finished radio sensor unit has to be approved by a notified body for operating free of charge in the area of the United States of America approval and in Canada IC approval FCC IC operational and timing requirements Field strength Because of the very low average to peak factor the corrected field strengths of EnOcean transmitters meet the field strength limit values according to FCC 15 231 e Duty Cycle The length of one packet 1 1 21 ms Within a packet the duty cycle 1s 50 0 6 ms Periodic transmissions One pulse train consists of 3 packets within 100 ms Added we have 3 0 6 ms within 100ms this 15 duty cycle of 1 8 The average value is Peak 20 log 1 8 100 Peak 34 9 dB Radiated field strength is 75 7 dBuV m at 3m distance The calculated AVERAGE is 75 7 dBuV m 34 9 dB 40 8 dBuV m at 3m distance The limit for 315 MHz according to FCC 15 2351 e is 67 7 dBuV m A test report containing the measurement results is available from EnOcean on request Periodic transmissions In addition to the field strength limits according to FCC 15 231 e the silent period between periodic transmissions must in no case be less than 10 seconds As the STM11xC module also allows other configurations this must be ensured in the development of the finished radio sensor unit Control s
23. ment Procedure for hand soldering e Environment Soldering operation shall be performed in a clean environment with ventilation to remove soldering fume during the operation e Soldering temperature calibration o Temperature measuring device The device e g Anritsu Model No HL 100 Shall be stabilized at room temperature prior to and during calibration o Timing Calibrate the soldering iron tip before the operation or every 30 minutes after the soldering o Procedure a In Pb alloy soldering the soldering iron shall be set up and stabilized at 240 C before and in the calibration For Pb free solder wire the soldering iron shall be set up and stabilized at 255 C before and in the calibration EnOcean GmbH W Heller Page 32 of 43 STM 110 User Manual V1 2 of unused energy enocean b Take little solder wire on the soldering iron tip and put the tip in contact with the contact pad of the temperature meter for 1 minute c Temperature shown on the temperature meter shall be 2559C Pb free at least for one minute otherwise re adjust the temperature setting of the soldering iron e Soldering operation Step 1 soldering iron tip and solder wire contact with the copper paste of solar cell together At this moment tin pot formed in a shape of half ball type or makes a plane type on the copper paste All the processes shall be well done less than 2 seconds Step 2 Melt solder wire on the top of solder le
24. mer wake up signal GND GND No presence signal after timer wake up A radio telegram is always transmitted after wake up via WAKE pins change compared to STM100 After transmission the presence signal counter is reset EnOcean GmbH W Heller Page 17 of 43 STM 110 User Manual V1 2 e we Jl Ul SEO ENE y The power of unused energy enocean 2 6 Solar Energy Balance Calculation The following diagrams are showing operational performance data of STM110 1 1 E E HE E E E d d d d ESSERE 8 LE HE HE HERE CERE HE o 00 0 01 1 0 0 01 T T 1 HERE TE Edd dE ESSE RES E E ERE MESES fe HESSE ES EE EE 111l 1 11 1 1 1 1 1 1 1 1 11 1 1 1 Ltd I E 8 E SIE E ES LI ELA I HRIHAEREIARHIAPHIAPHLHAELLLEID E ee e ee e ee e 5 EACE E E E A 4 0 0 0 0 EI pem eme T JE 1 1I ede 1 gt E LE C dg HE HE HE HE 5 pe Eee Eo ene E ES p
25. nputs Buffered measurement of V SC1 and V SC2 Transmission indicator LED Temperature range 25 C 65 C EnOcean Ordering Code Scope of supply EVA 120 H3004 G120 1x Evaluation board 1x STM110 1x RS232 USB adapter 1x CDROM 1x Evaluation board 1x STM110C 1x RS232 USB adapter 1x CDROM EVA 120C EnOcean GmbH W Heller Page 39 of 43 STM 110 User Manual V1 2 The power of unused energy enocean 4 2 Evaluation Kit EVA 100 EVA 105C EVA 100 100C is an evaluation kit to support a simple setting up operation of the receiver side when the EnOcean sensor transmitter module STM 11x STM 11xC is evaluated EVA 100 105C supports a rapid evaluation of the serial receiver mode and supports the fast development of applications Ordering Code Scope of supply EVA 100 H3004 G100 Evaluation board EVA PCB EnOcean 868 MHz radio devices STM 11x 200 RCM 110 and RCM 120 CD with RS232 PC link monitor software detailed kit documentation 230V wall power supply for EVA PCB Convenient equipment case EVA 105C Evaluation board EVA PCB EnOcean 315 MHz radio devices STM 11xC PTM 200C RCM 110C and RCM 130C CD with RS232 PC link monitor software and detailed kit documentation Convenient equipment case 120V wall power supply 4 3 Field Intensity Meter EPM 100 EPM 100C The EPM100 EPM100C is a mobile field intensity meter that helps the engineer to find the best installation positions fo
26. nufacturer and type of device In case a manufacturer code is programmed into the module and DI3 0 at wake up the module will transmit a dedicated teach in telegram containing the manufacturer code Observe Precautions electrostatic sensitive devices EnOcean GmbH W Heller Page 6 of 43 STM 110 User Manual V1 2 The power of unused energy enocean 1 4 Physical Dimensions Dimensions of 21 x 40 x 9 mm incl energy store and wiring pins Dimensions of solar cell 35 0 x 13 0 x 1 1 mm for details see chapter 5 pre installed 9 cm STM11x or 24 cm STM11xC whip antenna miami 20 pins dual row male grid 1 27 mm 1 4 oip Figure 2 STM 11x package outlines 1 5 Environmental Conditions Operating temperature n 25 up to 65 Storage temperature han nnn nnn 25 up to 65 Humidity PCB susan 0 to 95 r h 2 Humidity Solar cell rear side 0 to 60 r h no condensate 1 For corrosion protection see chapter 3 5 The product life strongly depends on the temperature as the Goldcap used for energy storage degrades with higher temperature As a reference the lifetime capacitance redu
27. oding Scheme of CW and CP Input Pins Wake up cycle time Presence signal time 2 6 Solar Energy Balance Calculation 2 7 Radio Telegram of STM 11x Frequency range and modulation scheme Transmission timing 2 8 Serial Interface for module configuration Serial protocol Command list 2 9 Serial Data Reception via Receiver Modules RCM 120 RCM 130C 3 APPLICATIONS INFORMATION 3 1 Module Mounting 3 2 Antenna Mounting 3 3 Transmission Range 3 4 Connecting the solar cell O N NN CO A A O o pd Mom m QVO cg UO DB m N N jh CO NN gt gt NN N E Ww U N N N oo o N EnOcean GmbH W Heller Page 3 of 43 STM 110 User Manual V1 2 The power of unused energy enocean 3 5 Solar Cell Handling Soldering amp Mounting Handling Soldering Gluing Corrosion protection Shade 3 6 Using an Alternative Power Supply e g Battery 3 7 Learn Push Button 3 8 CE Approval Requirements STM 11x 3 9 FCC IC Approval Requirements STM 11xC 4 DEVELOPMENT TOOLS 4 1 Evaluation Kit EVA 120 EVA 120C 4 2 Evaluation Kit EVA 100 EVA 105C 4 3 Field Intensity Meter EPM 100 EPM 100C 5 SPECIFICATION OF SS3513 SOLAR CELL 6 DECLARATION OF CE CONFORMITY EnOcean GmbH W Heller Page 4 of 43 32 32 32 34 34 35 36 36 37 38 39 39 40 40 41 43 STM 110 User Manual V1 2 of
28. oldering temperature and the specified soldering time GmbH W Heller Page 33 of 43 STM 110 User Manual V1 2 of unused energy enocean Gluing XE16 508 Loctite 403 Figure 10 Gluing the solar cell Instead of soldering it is also possible to glue the solar cell onto a PCB It is proposed to use the following adhesives a GE Bayer Silicones XE16 508 electroconductive adhesive b Loctite 403 to increase mechanical stability First the XE16 508 is put onto the contact pads of the solar cell Then a drop of Loctite 403 is put in the middle of the solar cell After that the solar cell is put onto the PCB Then the solar cell is pressed onto the PCB accompanied by small rotary movements 1mm Wear gloves to avoid finger prints on solar cell The curing time of Loctite 403 is only 5 seconds once the solar cell is pressed onto the PCB Positioning must be finished by then Corrosion protection Corrosion protection is essential to the lifetime of the solar module The solar module is extremely resistant to temperature effects But mounting must particularly provide protection against humidity The proper choice of suitable sealing material is important best method is protection by a transparent cover mainly important for outdoor applications Also well suited is a casing by silicone not acrylic With every kind of protection solution it is very important that the cell edges and
29. ounting The STM 11x module requires some external circuitry configuration and connecting to the application specific sensorics circuit This external circuitry should easily find place on a small PCB that can be connected upside down to the EnOcean module via the STM dual row header This allows the realization of very compact sensor units User PCB STM STM 110 110 Module Module l Space required 9 mm Figure 7 Examples of compact sensor unit The following features have to be available on the user PCB e Power supply by connecting V SC1 and V SC2 to the supplied solar cell or by connecting V SC1 to another suitable external energy source e Configuration of the STM firmware by connecting the input pins CW 0 1 and CP O 1 e If needed an application specific sensor circuitry connected to analog input pins AD O AD 1 and or AD 2 and powered by V OUT V REF and GND e If needed connections to digital signal inputs DI 0 3 The digital inputs can also be used for an individual sensor type identification defined by the user e If needed a changeover switch connected to the differential WAKE pins for providing spontaneous wake up e If needed a light emitting diode connected between the LED and GND pins for providing optical feedback of sending To avoid radio frequency pickup from the environment strip lines of the user circuit should be designed as short as possible and the use of a PCB ground plane layer is recomm
30. r cell must be connected to the module in series with Schottky Diodes of type BAS 125 In Figure 9 the dual diode BAS 125 07 SMD parallel pair is used For outdoor use in addition the BZX84 B5V1 diodes leakage current at 2V must be below 2uA are needed to avoid damage of the module by over voltage EnOcean GmbH W Heller Page 30 of 43 STM 110 User Manual V1 2 The power of unused energy enocean EnOcean GmbH W Heller SOLAR CELL 30 70 emooscseoccecsosecenocehoocecooseeososceosocesosccsososcoocsesoscecoscseoscecesosseooccesecceccooccosceco 2x BZX84 B5V1 for outdoor applications Qeecccccccccccccscccedecccccccccccsacccccccsccccscccccssccccccesccccecccccccccecedeccccccccccccccccccce eecososseccooleoesccoosssosecosoososocoooscosecesecsosceoooccosecveeccedececceecceco Z BAS 125 07W NZ 5 eccccccccc eccccccccccccccccccccccccsscccscccccccccccccccccccccccceleccccccccccs V SC1 V SC2 Figure 9 Connecting the solar cell Page 31 of 43 STM 110 User Manual V1 2 of unused energy enocean 3 5 Solar Cell Handling Soldering amp Mounting The EnOcean solar cell technology guarantees the highest stabilized efficiency values At the front the solar modules have a glass covering that protects the photovoltaic layer from the effects of the environment and weather The rear features contacts for the electrical connection Handling e Prevent injuries due to the sharp glas
31. r sensor and receiver It can also be used to check disturbances in links to already installed equipment The EPM100 EPM100C displays the field intensity of received radio telegrams and interfering radio signals in the 868MHz 315MHz range The simplest procedure for determining the best installation positions for the radio sensor receiver e Person 1 operates the radio sensor and generates pushbutton radio telegrams e Person 2 checks the received field intensity on the meter display to find the optimal installation position Type Ordering Code _ Frequency 53004 27100 868 MHz 315 MHz EPM 100C S3034 J100 EnOcean GmbH W Heller Page 40 of 43 STM 110 User Manual V1 2 The power of unused energy enocean 5 SPECIFICATION OF SS3513 SOLAR CELL 1 SCOPE THESE SPECIFICATIONS ARE APPLICABLE FOR SINONAR AMORPHOUS SOLAR CELL SUPPLIED TO SIEMENS 3 2 GENERAL FEATURES 2 1 MODEL NO 3513 SOLAR CELL 2 2 DIMENSIONS REFER TO DRAWING NO P1600 EDITION ALL TOLERANCES ARE SPECIFIED ON THE DRAWING AND NUMBERS WITHOUT TOLERANCES ARE FOR REFERENCE ONLY 2 3 OPERATING TEMPERATURE RANGE 25 C TO 65 2 4 STORAGE TEMPERATURE RANGE Please Solder in 3 months 25 C TO 85 0 TO 60 RH 3 FUNCTIONAL SPECIFICATIONS at 200 Lux EL 25 om MP ARP REA Short Circuit Current Typical Typical Typical 3 0V 1 2uA Typical 3 0 V 3 0uA Operating Voltage and Current
32. r with applications that can result in danger for people animals or real value Components of the modules are considered and should be disposed of as hazardous waste Local government regulations are to be observed Packing Please use the recycling operators known to you By agreement we will take packing material back if it is sorted You must bear the costs of transport For packing material that is returned to us unsorted or that we are not obliged to accept we shall have to invoice you for any costs incurred EnOcean GmbH W Heller Page 2 of 43 STM 110 User Manual V1 2 The power of unused energy enocean Table of Contents 1 GENERAL DESCRIPTION 1 1 Basic Functionality 1 2 Typical Applications 1 3 Technical Data 1 4 Physical Dimensions 1 5 Environmental Conditions 1 6 Ordering Information 2 FUNCTIONAL DESCRIPTION 2 1 Block Diagram Module power supply Power control Power supply outputs Wake up timer Processor RF transmitter 2 2 Pin Description and Operational Characteristics 2 3 Absolute Maximum Ratings non operating 2 4 Equivalent Schematics of Inputs and Outputs Equivalent schematic of WAKE and WAKE inputs Equivalent schematic of wake up cycle time inputs CW 0 to CW 1 Equivalent schematic of LED output Equivalent schematic of V SC1 input Equivalent schematic of V SC2 input Equivalent schematic of analog inputs AD O0 to AD 2 Equivalent schematic of voltage outputs V OUT and V REF 2 5 Enc
33. s edges e Always handle the modules carefully avoid damage of the glass edges that leads to glass breakage or glass chips The layers are sensitive to punctual pressure scratching or grinding During handling and processing always make sure that no particles are pushed into the coating Scratches imprints or particles pushed into the layer can lead to short circuiting of the module thus deterioration e The processing of the modules with lacquer spray processes or edge grinding could lead to an impairment of the electrical function of the module electrostatic influences e In case of necessary module cleaning the following cleaning agents are suggested Kleenex 200 tissues Code 7107 D 0261 8930 Kimberly Clark highpure DI water Ethanol min 99 8 Vol Soldering The solar panel has 3 connection pads on the rear side On one side you will see the minus sign This is the GND connection Apparatus e Soldering iron Temperature controlled type with 60W heater at least and 5 C control range is recommended e Soldering iron tip Slant type or point type e Temperature Measuring Device A calibrated contact type temperature meter e g Anritsu Model No HL 100 Materials e Pb free solder wire Sn96 5 Ag3 0 Cu0 5 0 8 mm e g Kester 245 e Lead wire Dependent on the type of solar cell use 20 30 AWG multi threads stranded type For Pb free soldering the lead wire component shall be complied with RoHS require
34. s the ID of a received radio telegram by a special teach in routine In the second case please note that cyclic sending sensors can be unintentionally learned mainly if there are some sensors in operation at the same time Because of that it is recommended to implement a learn procedure that is reacting to a dedicated Learn Telegram only This special learn procedure has to be realized by the system intelligence after RCM 120 serial interface RCM 130 130C features a special learn mode which allows to learn 4BS transmitters only with LRN bit DI 320 For example this can be realized as follows Recommendation for the realization of a learn push button STM 110 EnOcean GmbH W Heller Page 36 of 43 STM 110 User Manual V1 2 er of unused energy 3 8 CE Approval Requirements STM 11x The STM 11x module bears the EC conformity marking CE and conforms to the R amp TTE EU directive on radio equipment The assembly conforms to the European and national requirements of electromagnetic compatibility The conformity has been proven and the according documentation has been deposited at EnOcean The modules can be operated without notification and free of charge in the area of the European Union and in Switzerland EnOcean RF modules must not be modified or used outside their specification limits EnOcean RF modules may only be used to transfer digital or digitized data Analog speech and or mu
35. sic are not permitted EnOcean RF modules must not be used with gain antennas since this may result in allowed ERP or spurious emission levels being exceeded The final product incorporating EnOcean RF modules must itself meet the essential requirement of the R amp TTE Directive and a CE marking must be affixed on the final product and on the sales packaging each Operating instructions containing a Declaration of Conformity has to be attached If the STM 11x transmitter is used according to the regulations of the 868 3 MHz band a so called Duty Cycle of 1 per hour must not be exceeded Permanent transmitters such as radio earphones are not allowed For approval aspects it must be ensured that the STM 11x radio module does not transmit measuring data more than 9000 times per hour For this calculation the extraordinary short telegram length is considered including all subtelegrams Also a tolerance of 5 in telegram length is included EnOcean GmbH W Heller Page 37 of 43 STM 110 User Manual V1 2 The power of unused energy enocean 3 9 FCC IC Approval Requirements STM 11xC Because of the very low radiated field strength on average the EnOcean radio technology can be approved in the USA and in Canada If the STM 11xC is operated in compliance with the following requirements a finished sensor unit containing this radio will comply with Part 15 of the FCC Rules and with RSS 210 of Industry Canada Because dedicated timing lim
36. tage In the following table R_STM is given at a supply voltage of 3V typical values R_STM kQ 1s 10s 100s 110s Every wake up 24 240 2400 2600 Every 10 wake up 6300 6900 Every 100 wake up 8300 The current consumption is almost independent from the supply voltage typical values I_STM pA 1s 10s 100s 110s Every wake up Every 10 wake up Every 100 wake up EnOcean GmbH W Heller Page 15 of 43 STM 110 User Manual V1 2 The power of unused energy enocean Equivalent schematic of V SC2 input R C2 375 after 3 V applied for 10 min 5MQ after 24h Equivalent schematic of analog inputs AD O to AD 2 Equivalent schematic of voltage outputs V OUT and V REF EnOcean GmbH W Heller Page 16 of 43 STM 110 User Manual V1 2 The power of unused energy enocean 2 5 Encoding Scheme of CW and CP Input Pins The encoding input pins have to be left open or connected to GND in correspondence with the following connection schemes Wake up cycle time CW O CW 1 Wake up cycle time GND 10 sec 20 NC GND 100 sec 20 110 sec 20 Presence signal time Via CP O0 and CP 1 an internal counter is set which is decreased at every wake up signal Once the counter reaches zero the presence signal is transmitted CP O CP 1 Number of cyclic wake up signals _ that trigger the presence signal Every timer wake up signal GND Every 10 timer wake up signal GND Every 100 ti
37. the metallic contact areas are covered EnOcean GmbH W Heller Page 34 of 43 STM 110 User Manual V1 2 The power of unused energy enocean Embedding With transparent cover Solar o 9 bremen eae ni gun 1 tuf AA AAAS Figure 11 Examples of solar cell mounting Shade During installation care should be taken to ensure that the active photovoltaic area is not shaded The cells strips which produce the least current due to shade determine the total module current EnOcean GmbH W Heller Page 35 of 43 STM 110 User Manual V1 2 of unused energy enocean 3 6 Using an Alternative Power Supply e g Battery Alternatively to the use of the supplied solar cell the module power supply input V SC1 can be driven by another suitable external energy source The external energy source must fulfill the following requirements Parameter Open circuit voltage 2 2 5 0 V Ampacity Peak lg quo omm Ampacity continuous s ms When using a battery please take care that the transistion resistance between battery and battery holder is lt lt 100 to avoid voltage drop Wrong polarity will damage the module 3 7 Learn Push Button There are two fundamental methods for transmitter assignments to a receiver 1 Manual input of the transmitter ID into the receiver system 2 The receiver systems automatically learn
38. und in chapter 3 9 of this paper STM11x STM11xC are based on ASK amplitude shift keying modulation with a bit rate of 125 kbit s Telegram content The payload of the telegram consists of 8 bit 8 bit 8 bit 4 bit 32 bit Transmission timing The transmission timing of the radio module STM 11x has been developed to avoid possible collisions with data packages of other EnOcean transmitters as well as disturbances from the environment With each transmission cycle 3 identical subtelegrams are transmitted The transmission of a subtelegram lasts approximately 1 2 ms To optimize data security each telegram is repeated twice within about 40 ms whereas the delay between the three transmission bursts is effected at random EnOcean GmbH W Heller Page 20 of 43 STM 110 User Manual V1 2 of unused energy enocean 2 8 Serial Interface for module configuration It is possible to change some parameters of the module via a serial interface Read write threshold values of AD O to AD 2 which lead to a transmission of a radio protocol Read the firmware version of the module Read write manufacturer ID device profile and type The following pins are needed LED V OUT DI 3 as USR RX DI2asUSR TX In order to activate the serial mode please take the following steps 1 Connect LED pin to V OUT pin 2 Activate STM11x using the timer or the WAKE inputs The module will then enter the serial mode It will
39. unused energy enocean 1 GENERAL DESCRIPTION The extremely power saving RF transmitter modules STM 11x and STM 11xC from EnOcean enable the implementation of wireless and maintenance free sensors Power supply is provided by a solar cell An integrated energy store allows operation for several days in total darkness 1 1 Basic Functionality Three 8 bit A D converter inputs and 4 digital inputs facilitate multifunctional detector systems based on passive sensing components This allows easy and convenient monitoring of temperature illumination etc or controlling window and door states or supervising input voltages or input currents respectively Figure 1 STM 11x sensor transmitter module 1 2 Typical Applications e Building installation e Industrial automation e Consumer electronics The STM 11x module serves the 868 MHz air interface protocol of EnOcean Together with the receiver module RCM120 RCM130 this module can be easily integrated into operation and control units for the realization of various application specific system solutions The module is part of a powerful RF system solution from EnOcean for operation and control applications Because the RF transmitters are self powered maintenance free RF systems can be implemented A 315 MHz version STM 11xC for use in USA and Canada is also available EnOcean GmbH W Heller Page 5 of 43 STM 110 User Manual V1 2 of unused energy eno
40. ve module V CP O0 1 LED DIO 3 ADO 2 Input voltage while uC active 0 V OUT V OUT Input voltage while serial mode is active 0 3 09 CW_O CW1 Input voltage 0 WAKE WAKE Input voltage VSCI1 ANT Inputvoltage V_REF V_OUT Output current Output current V_SC1 V_SC2 Electrostatic discharge kV 9 0 0 S 2 7 5 1 2 1 CW 0 CW1 WAKE WAKE V OUT V REF ANT GND EnOcean GmbH W Heller Page 12 of 43 STM 110 User Manual V1 2 The power of unused energy enocean CP O CP 1 LED Electrostatic discharge 2 kV DI 0 3 AD O 2 INERENTI Humidity Solar cell Illumination 100 000 Ix Solar cell Humidity 1 J O 60 9erh Exceeding these values may destroy the module GmbH W Heller Page 13 of 43 STM 110 User Manual V1 2 JO of unused energy 2 4 Equivalent Schematics of Inputs and Outputs Equivalent schematic of WAKE and WAKE inputs Internal Logic V SC1 Internal Logic Equivalent schematic of wake up cycle time inputs CW 0 to CW 1 EnOcean GmbH W Heller Page 14 of 43 STM 110 User Manual V1 2 The power of unused energy enocean Equivalent schematic of LED output 470 Equivalent schematic of V_SC1 input R C1 6 after V applied for 10 gt gt 10MQ after 24h R_STM depends on wake up cycle time transmit intervals and supply vol
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