EnOcean STM110C User Manual

Rhein Tech Laboratories, Inc. Client: EnOcean GmbH 360 Herndon Parkway Model: STM110C Suite 1400 Standards: FCC 15.231/IC RSS-210
http://www.rheintech.com
Report #: 2007284
ID’s: SZV-STM110C/5713A-STM110C Herndon, VA 20170
Appendix K: Manual
Please see the following pages.
USER MANUAL V0.904
RF Sensor Transmitter Module STM110C
February 18, 2008
Patent protected:
WO98/36395 DE 100 25 561 DE 101 50 128 WO 2004/051591 DE 103 01 678 A1
EnOcean GmbH Kolpingring 18a 82041 Oberhaching Germany
Phone +49.89.67 34 689-0 Fax +49.89.67 34 689-50 info@enocean.com www.enocean.com
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STM110C
REVISION HISTORY
The following major modifications and improvements have been made to the first version of this document:
No 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 requirement s of the local le gal authorities. The modules must not be used in any relation with equipment that supports, directly or indirectly, human health or life or 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 m ust 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 Kolpingring 18a 82041 Oberhaching Germany
Phone +49.89.67 34 689-0 Fax +49.89.67 34 689-50 info@enocean.com www.enocean.com
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STM110C
TABLE OF CONTENT
1
GENERAL DESCRIPTION ...................................................................................... 5
1.1 Basic Functionality ......................................................................................... 5
1.2 Typical Applications ....................................................................................... 5
1.3 Technical Data .............................................................................................. 6
1.4 Physical Dimensions ...................................................................................... 7
1.5 Environmental Conditions ............................................................................... 7
1.6 Ordering Information ..................................................................................... 7
2 FUNCTIONAL DESCRIPTION ................................................................................. 8
2.1 Block Diagram .............................................................................................. 8
Module power supply ........................................................................................... 8
Power control ..................................................................................................... 9
Power supply outputs .......................................................................................... 9
Wake-up timer .................................................................................................... 9
Processor .......................................................................................................... 10
RF transmitter ................................................................................................... 10
2.2 Pin Description and operational characteristics .................................................. 11
2.3 Absolute maximum ratings ............................................................................ 13
2.4 Equivalent schematics of Inputs and Outputs ................................................... 14
Equivalent schematic of WAKE and /WAKE inputs ................................................... 14
Equivalent schematic of wake-up cycle time inputs CW_0 to CW_1 ............................ 14
Equivalent schematic of LED output ...................................................................... 15
Equivalent schematic of V_SC1 input .................................................................... 15
Equivalent schematic of V_SC2 input .................................................................... 16
Equivalent schematic of analog inputs AD_0 to AD_2 .............................................. 16
Equivalent schematic of voltage outputs V_0UT and V_REF ...................................... 16
2.5 Encoding Scheme of CW and CP Input Pins ...................................................... 17
Wake-up cycle time ............................................................................................ 17
Redundant retransmission ........................... ... .. .................................... ... ............ 17
2.6 Solar Energy Balance Calculation .................................................................... 18
2.7 Radio Telegram of STM110C .......................................................................... 20
Frequency range and modulation scheme .............................................................. 20
Transmission timing ........................................................................................... 20
2.7 Serial Interface for module configuration ......................................................... 21
Serial protocol ................................................................................................... 22
Command list .................................................................................................... 23
2.8 Serial Data Reception via Transceiver Modules TCM 200C / TCM 210C .................. 27
3 APPLICATIONS INFORMATION ............................................................................ 28
3.1 Module Mounting .......................................................................................... 28
3.2 Antenna Mounting ........................................................................................ 29
3.3 Transmission Range ...................................................................................... 30
3.4 Connecting the solar cell ............................................................................... 31
3.5 Solar Cell Handling, Soldering & Mounting ........................................................ 32
Handling ........................................................................................................... 32
Soldering .......................................................................................................... 32
Gluing .............................................................................................................. 34
Corrosion protection ........................................................................................... 35
Shade .............................................................................................................. 35
EnOcean GmbH Kolpingring 18a 82041 Oberhaching Germany
Phone +49.89.67 34 689-0 Fax +49.89.67 34 689-50 info@enocean.com www.enocean.com
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3.6
Using an Alternative Power Supply, e.g. Battery ............................................... 36
3.7 Learn Push Button ........................................................................................ 36
4 AGENCY CERTIFICATIONS .................................................................................. 37
4.1 FCC (United States) Certification .................................................................... 37
4.2 IC (Industry Canada) Certification .................................................................. 38
5 SPECIFICATION OF SS3513 SOLAR CELL .............................................................. 39
EnOcean GmbH Kolpingring 18a 82041 Oberhaching Germany
Phone +49.89.67 34 689-0 Fax +49.89.67 34 689-50 info@enocean.com www.enocean.com
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STM110C
1 GENERAL DESCRIPTION
The extremely power-saving RF transmitter module STM110C from EnOcean enables the implementation of wireless and maintenance-free sensors. Power supply is provided by a solar cell. An integrated energy storage allows operation for several days in total darkness.
1.1 Basic Functionality
Three 8-bit A/D converter inputs and 4 digital inputs facilitate multif unctional 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: STM110C sensor transmitter module
1.2 Typical Applications
Building installation
Industrial automation
Consumer electronics
The STM110C module serves the 315 MHz air interface protocol of EnOcean. Together with the transceiver modules TCM200 / TCM210C, 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.
EnOcean GmbH Kolpingring 18a 82041 Oberhaching Germany
Phone +49.89.67 34 689-0 Fax +49.89.67 34 689-50 info@enocean.com www.enocean.com
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1.3 Technical Data
Power supply Solar Power Generator (discrete optical cell), or 2.2 - 5.0V external Frequency / Conducted transmission power 315.0 MHz / 12dBm Data rate / Modulation type 125 kbps / ASK Transmission range 300m free field, typ. 30m indoor Module identifier individual 32-bit ID factory-programmed EnOcean telegram type 4BS (“Four Byte Sensor”) Telegram packet length (sub-telegram) 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%) Redundant retransmission user-configurable, affected at random Illumination 100 lx up to 100. 00 0 lx Operation startup time with empty energy store < 10 min @ 400 lx Operation time during total darkness > 60 h 1)
1)
RF transmission statistically every 17 min, 100s wake-up, temperature 25°C, Goldcap formatted
Ext. power supply output 3.0 V ±3%, 1mA max., ~2.6ms (during wake-up time) Ext. voltage reference output 2.05V ±3%, 1mA max., ~2.6ms (during wake-up time) Input sample time after wake-up >1.7 ms Transmitting indication output (LED) 3.0V ±3%, 2mA max., 3 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 sendin g or in case of a significant change of measured analog values: > or >
14LSB of AD_2. In case of a triggered wake-up a radio telegr am is sent in any case. In case of no relevant input change, a redundant retransmission is sent after a while to announce all current input values. 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 manufacturer 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!
storage is filled @ 1000 lx (4.2V in Goldcap)
5LSB of AD_1 input, >6LSB of AD_0
EnOcean GmbH Kolpingring 18a 82041 Oberhaching Germany
Phone +49.89.67 34 689-0 Fax +49.89.67 34 689-50 info@enocean.com www.enocean.com
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1.4 Physical Dimensions
Dimensions of PCB 21.0 x 40.0 x 9.0 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) Antenna pre-installed 15 cm whip antenna Connector: 20 pins, dual row male, grid 1.27 mm
20 19
2 1
Figure 2
: STM110C package outlines
1.5 Environmental Conditions
Operating temperature -25°C up to + 65 °C Storage temperature -25°C up to +65 °C Humidity (PCB) 0% to 95% r.h. Humidity (Solar cell, rear side) 0% to 60% r.h., no condensate 1)
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 reduced 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°C to 65°C.
1.6 Ordering Information
Type EnOcean Ordering Code Radio Frequency Solar Cell
STM110C S3031-D110 315.0 MHz Included STM111C S3031-D111 315.0 MHz Not included
EnOcean GmbH Kolpingring 18a 82041 Oberhaching Germany
Phone +49.89.67 34 689-0 Fax +49.89.67 34 689-50 info@enocean.com www.enocean.com
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2 FUNCTIONAL DESCRIPTION
2.1 Block Diagram
V_SC1
V_SC1
Goldcap
Goldcap
V_SC2
V_SC2
*) DI_x and AD_x input values are transmitted ...
*) DI_x and AD_x input values are transmitted ...
- If wake-up and an input value has changed
- If wake-up and an input value has changed
- At wake-up and presence signal time
- At wake-up and presence signal time
RF Transmitter
RF Transmitter
Power , Da ta*)
Power , Da ta*)
ANT
ANT (whip)
(whip)
LED
LED
Processor
Processor
Redundant
Redundant retransmission
retransmission
(every 70th - 140th,
(every 70th - 140th, every 7t h - 14t h,
every 7t h - 14t h, every cycl ic wake-u p)
every cycl ic wake-u p)
CP_1CP_0
CP_1CP_0
Digital
Digital
Inputs
Inputs
A/D
A/D
8-bit
8-bit
DI_0
DI_0 DI_1
DI_1 DI_2
DI_2 DI_3
DI_3
AD_0
AD_0 AD_1
AD_1 AD_2
AD_2
WAKE
WAKE WAKE
WAKE
CW_1
CW_1 CW_0
CW_0
Powe r c on t ro l &
Powe r c on t ro l &
wake -u p timer
wake -u p timer
Spontaneous
Spontaneous wake-up
wake-up
Cyclic wake-up
Cyclic wake-up
(every 1,10, 100,
(every 1,10, 100, or 110 s)
or 110 s)
Active during
Active during wake-up only
wake-up only
V_REFV_OUT
V_REFV_OUT
Wake-up
Wake-up
(pow er on)
(pow er on)
Ready
Ready
(power off)
(power off)
GND
GNDGND
Figure 3: STM110C block diagram
Module power supply
The supplied solar cell has been designed especially for the STM110C for maximum module performance at smallest dimensions. The active solar area is divided into two to provide independent module power supplies:
V_SC1: Main power supply input. Must be connected to the STM110C solar cell
(small active area) or by another external energy source respectively
V_SC2: Goldcap charging input by connecting to the STM110C solar cell (big active
area)
The capacitance of the Goldcap may be reduced 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°C may decrease th e capa­citance of the Goldcap. This will result in shorter charging times and shorter oper­ating times in total darkness!
EnOcean GmbH Kolpingring 18a 82041 Oberhaching Germany
Phone +49.89.67 34 689-0 Fax +49.89.67 34 689-50 info@enocean.com www.enocean.com
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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:
Extremely low power consumption during sleeping time period
Cyclic processor wake-up configurable by user through external pin configuration
(CW_0, CW_1)
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 over time only).
WAKE and /WAKE always have to be operated via switch-over as shown in the following:
WAKE
WAKE
WAKE
WAKE
GND
GND
Figure 4: External WAKE pin circuit
A radio telegram is always transmitted after wake-up via WAKE pins! After transmission the counter for redundant retransmission is reset to a random number in the confi
ured range.
See chapter 2.5 for configuration of wake-up cycle times.
EnOcean GmbH Kolpingring 18a 82041 Oberhaching Germany
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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) Counter for redundant retransmission is elapsed
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 timing of redundant retransmission.
RF transmitter
The radio transmitter is powered up by the processor when the sending condition is posi­tive. The output LED is activated temporarily during telegram transmission.
EnOcean GmbH Kolpingring 18a 82041 Oberhaching Germany
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2.2 Pin Description and operational characteristics
Pin Symbol Function Operational Characteristics
5 6 7
2 1 4 3
18 20
12 14
13 15
AD_0 AD_1 AD_2
DI_0 DI_1 DI_2 DI_3
WAKE
/WAKE
CW_0 CW_1
CP_0 CP_1
Analog inputs sampled at every wake-up.
The analog input values are transmitted as sensor data bytes:
AD_0 = DATA_BYTE1 AD_1 = DATA_BYTE2 AD_2 = DATA_BYTE3
Digital inputs sampled at every wake-up.
Digital inputs are transmitted within sensor DATA_BYTE0 (least significant 4 bits): DI_0 = Bit 0, DI_1 = Bit 1, DI_2 = Bit 2, DI_3 = Bit3).
DI_2 and DI_3 are also us ed as serial interface pins for the con­figuration of the module. See page 21. A signal change of WAKE inputs stops sleep mode immediately. A radio telegram is always transmitted after wake-up via WAKE pins! (change compared to STM100!)
Encoding input for processor wake-up cycle time: 1, 10, 100, or 110 seconds approximately.
Encoding input for determining the number of cyclic wake-up signals that trigger the redun-
Sample moment after wake-up: 1.7 ms …
2.6 ms Resolution: 8-bit Input impedance: >100k
(1 bit = V_REF/256 = 8mV Accuracy vs. V_REF @25°C typ. ±2LSB, max ±4LSB). Relevant input change:
> 5 LSB of AD_1 > 6 LSB of AD_0 > 14 LSB of AD_2
These default values may be changed. See page 23 Sample moment after wake-up: 1.7 ms …
2.6 ms Real digital TTL input with internal pull-up (change compared to STM100!) LOW voltage: <0.45 V HIGH voltage: > 2.45V Input impedance >100k
Differential input (capacitive):
- connect to GND via switch over only
- Resistance to GND < 100
- Switch over time < 1ms
- Minimum time between wake
signals > 7ms
- Pins should be connected to V_SC1 if not needed in application
- max. external allowed leakage current 100pA Pins should be left open or connected to GND Resistance to GND < 10 Cyclic wake-up time value strongly depends on actual power supply voltage and temper­ature (up to ±20%) Pins should be left open or connected to GND Resistance to GND < 100
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9
10
11
19
17
8
16
ANT
dant retransmission: Every
Input impedance >100k wake-up signal, or every 7th ­14th, or every 70th - 140th or no redundant retransmission.
V_OUT Module power supply output
available during wake-up phase to drive an external sensor cir-
3.0V ±3%, ~2.6ms,
I
= 1 mA max.
Vout
cuitry by the user. Also used for starting serial mode.
V_REF Reference voltage output availa-
ble during wake-up phase to drive an external sensor circuit
2.05 V ±3%, ~2.6ms,
I
= 1 mA max.
Vref
by the user.
LED Output for optional external LED
to indicate every telegram transmission (short flashing)
3.0 V ±3%, 2 mA max.,
source impedance 470 ±1%,
~3 x 1.2 ms within 40 ms Also used for starting serial
mode.
V_SC1 Main power supply input. Con-
nect V_SC1 in series with a Schottky diode of Type BAS 125
When using other energy source than the
supplied solar panel (see chapter 3.6):
2.2 – 5.0 V to SOL1 of the STM110C solar cell (smaller area, see Figure 9). Or connect to another external energy source respectively.
V_SC2 Goldcap charging input. Connect
V_SC2 in series with a Schottky
For use with the solar cell only (Vo < 5.0 V)!
diode of Type BAS 125 to SOL2 of the STM110C solar cell (big­ger area, see Figure 9).
GND
Ground connections
Whip antenna λ/4
Please find recommendations on antenna mounting in chapter 3.2
Never connect an 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.
EnOcean GmbH Kolpingring 18a 82041 Oberhaching Germany
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