EnOcean STM 320 Bedienungsanleitung

USER MANUAL V1.05

EnOcean GmbH

Kolpingring 18a

82041 Oberhaching

Germany

Phone +49.89.67 34 689-0

Fax +49.89.67 34 689-50

[email protected]

www.enocean.com

Subject to modifications

STM 320 / STM 320C / STM 320U User Manual

V1.05

April 26, 2013 8:59 AM

Page 1/18

Patent protected:

WO98/36395, DE 100 25 561, DE 101 50 128,

WO 2004/051591, DE 103 01 678 A1, DE 10309334,

WO 04/109236, WO 05/096482, WO 02/095707,

US 6,747,573, US 7,019,241

Observe precautions! Electrostatic sensitive devices!

Scavenger Transmitter Module

STM 320 / STM 320C / STM 320U

April 26, 2013

USER MANUAL V1.05

STM 320 / STM 320C / STM 320U

REVISION HISTORY

The following major modifications and improvements have been made to the first version of

this document:

Major Changes

0.5

Initial version

0.90

New drawings added; new energy consumption data added; application note for

connecting an external battery added; Agency certifications added; new charging

circuitry added; editorial changes

0.95

Editorial changes

0.99

Pin for connection of backup battery changed; section 3.4 inserted; drawings up-

dated

1.00

Drawing updated

1.02

Remark added in 3.4; additional remarks in 2.4; label information modified in

chapter 5; Shelf life added in 1.4; Conducted output power replaced by radiated

output power in 1.2; other editorial changes

1.03

Duration of a sub-telegram corrected to 0.9ms in 2.3;

1.04

Specification of shelf life improved. Chapter Related Documents added

1.05

STM 320U added

Published by EnOcean GmbH, Kolpingring 18a, 82041 Oberhaching, Germany

www.enocean.com, info@enocean.com, phone ++49 (89) 6734 6890

Important!

This information describes the type of component and shall not be considered as assured characteris-

tics. 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 web-

site: 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 contain-

ing RF components must meet the essential requirements of the local legal 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.

USER MANUAL V1.05

STM 320 / STM 320C / STM 320U

TABLE OF CONTENT

1RELATED DOCUMENTS ...................................................................................4

2GENERAL DESCRIPTION .................................................................................4

2.1 Basic functionality .........................................................................................4

2.2 Technical data...............................................................................................4

2.3 Physical dimensions .......................................................................................5

2.4 Environmental conditions ...............................................................................7

2.5 Ordering Information .....................................................................................7

3FUNCTIONAL DESCRIPTION ............................................................................8

3.1 Block diagram ...............................................................................................8

3.2 Radio telegram..............................................................................................8

3.3 Transmit timing.............................................................................................8

3.4 Energy consumption ......................................................................................9

4APPLICATIONS INFORMATION....................................................................... 10

4.1 Helical antenna ........................................................................................... 10

4.2 Transmission range ..................................................................................... 11

4.3 Connecting an external backup battery .......................................................... 11

4.4 Mounting STM 320 into a housing .................................................................. 12

5AGENCY CERTIFICATIONS ............................................................................ 13

5.1 CE Approval ................................................................................................ 13

5.2 FCC (United States) certification.................................................................... 14

5.3 IC (Industry Canada) certification.................................................................. 16

5.4 FCC Regulatory Statements ......................................................................... 17

5.5Industry Canada Regulatory Statements ........................................................ 17

6Label Information ........................................................................................ 18

USER MANUAL V1.05

STM 320 / STM 320C / STM 320U

1RELATED DOCUMENTS

For mechanical integration please refer to our 3D drawings found at

http://www.enocean.com/en/enocean_modules/stm-320/

2GENERAL DESCRIPTION

2.1 Basic functionality

The radio transmitter module STM 320 from EnOcean

enables the implementation of a wireless magnet con-

tact sensor. Powered by a solar cell, it works absolutely

maintenance-free. An integrated energy store allows

operation for several days even in total darkness.

Key applications are window and door sensors.

The STM 320 supervises an integrated reed contact and

reports every status change immediately (open <>

closed). In addition a sign of life signal is transmitted

every 20-30 minutes.

A LRN button is pre-installed on the PCB. When this but-

ton is pressed a special teach-in signal is sent.

There are three frequency variants –STM 320 in 868 MHz, STM 320C in 315 MHz,

and STM 320U in 902MHz.

Features with built-in firmware

Pre-installed solar cell

On-board energy storage and charging circuit

On-board LRN button

On-board TX indicator LED

On-board reed contact

2.2 Technical data

Antenna

Pre-installed helical antenna installed

Frequency

315.0 MHz (STM 320C)

868.3 MHz (STM 320)

902.875MHz (STM 320U)

Radio Standard

EnOcean 902MHz/868 MHz/315 MHz

Data rate/Modulation type

125 kbps/ASK(868MHz, 315MHz) FSK(902MHz)

Radiated Output Power

STM 320: +5 dBm1(EIRP) ± 2.5 dB2

STM 320C: +92 dBµV/m1± 2 dB2

STM 320U: +99 dBµV/m1± 2 dB2

Power Supply

Pre-installed solar cell

Illumination 50-100000 lux

Initial operation time in

darkness @ 25°C

typ. 6 days, min 90 hours

if energy storage fully charged

transmission of telegram every 25 min on average3

1Measured in test laboratory, measurement uncertainty 2.7 dB

2Tolerance of measurement in production at 50 Ω

USER MANUAL V1.05

STM 320 / STM 320C / STM 320U

Operation start up time with empty

energy store

typ. 2.5 min @ 400 lux / 25°C

incandescent or fluorescent light

Reed contact

1x internal, Meder MK23-90-BV14496 or MK01-I

Radio Regulations

R&TTE EN 300 220 (STM 320)

FCC CFR-47 Part 15 (STM 320C, STM 320U)

2.3 Physical dimensions

3Full performance of the PAS614L energy storage is achieved after several days of opera-

tion (up to two weeks) at good illumination level. Performance degrades over life time, es-

pecially if energy storage is exposed to higher temperatures. Each 10 K drop in tempera-

ture doubles the expected life span.

PCB dimensions 43±0.2 x 16±0.3 x 1±0.1 mm

Module height 6 mm

Weight 5.2 g (STM 320), 6.5 g (STM 320C), 5.2 g (STM 320U)

USER MANUAL V1.05

STM 320 / STM 320C / STM 320U

STM 320 / STM 320U

STM 320C

USER MANUAL V1.05

STM 320 / STM 320C / STM 320U

2.4 Environmental conditions

Operating temperature -20 °C … +60 °C

Storage temperature -20 °C … +60 °C, recommended4: +10 °C…+30 °C, <60%r.h.

Shelf life (in absolute darkness) 36 months after delivery5

Humidity 0% … 93% r.h., non-condensing

2.5 Ordering Information

Type

Ordering Code

Frequency

STM 320

S3001-D320

868.3 MHz

STM 320C

S3031-D320

315.0 MHz

STM 320U

S3051-D320

902.875 MHz

4Recommended for maximum life of energy storage capacitor

5Deep discharge of the PAS614L energy storage leads to degradation of performance.

Therefore products have to be taken into operation after 36 months. At least the PAS614L

needs to be recharged to 2.1 V.

The module shall not be placed on conductive materials, to prevent discharge of

the internal energy storages5. Even materials such as conductive foam (ESD pro-

tection) may have negative impact.

USER MANUAL V1.05

STM 320 / STM 320C / STM 320U

3FUNCTIONAL DESCRIPTION

3.1 Block diagram

A change of the reed contact status or pushing the LRN button will wake the transmitter

unit to send a radio telegram immediately (reed contact position, LRN push button status,

unique 32-bit sensor ID, checksum). In addition a redundant retransmission signal is sent

to announce the contact status even in case of no input signal changes. This signal trans-

mitted every 20-30 min, affected at random. The transmit indicator LED flashes briefly at

every radio transmission.

Between the wake-up phases, the device is in sleep mode for minimum power consump-

tion.

3.2 Radio telegram

STM 320 transmits a radio telegram according to EnOcean Equipment Profile

EEP D5-00-01 as defined in the EnOcean Equipment Profiles 2.1 specification.

http://www.enocean-alliance.org/fileadmin/redaktion/enocean_alliance/pdf/EnOcean_Equipment_Profiles_EEP2.1.pdf

3.3 Transmit timing

The setup of the transmission timing allows avoiding 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 within 40 ms. The transmis-

sion of a subtelegram lasts approximately 0.9 ms. The delay between the three transmis-

sion bursts is affected at random.

Helical antenna

BALUN

Spontaneous

wake-up

Power management Micro

Controller

RF Transmitter

868.3 MHz (STM 320)

315.0 MHz (STM 320C)

902.875 MHz (STM 320U)

DOLPHIN

EO3000I

16MHz Oscillator

Energy

Storage

Solar Cell

LRN button

Transmit

Indicator

Reed

contact

USER MANUAL V1.05

STM 320 / STM 320C / STM 320U

3.4 Energy consumption

Charge needed for one measurement and transmit cycle: ~80 µC

Charge needed for one measurement cycle without transmit: ~10 µC

Calculations are performed on the basis of electric charges because of the internal linear

voltage regulator of the module. Energy consumption varies with voltage of the energy

storage while consumption of electric charge is constant.

From these values the following typical performance parameters at room temperature have

been calculated:

Wake and

transmit

cycle [s]

Operation Time in darkness

[h] when storage fully

charged

Required reload time [h] at 200 lux

within 24 h for continuous operation

1500

175

1.8

Assumptions:

Internal storage PAS614L-VL3 (after several days of operation at good illumination

level) with 0.25 F, Umax=3.2 V, Umin=2.3 V, T=25 °C

Consumption: Transmit cycle 80 µC, measurement cycle 10 µC

Pre-installed solar cell ECS 300, operating values 3 V and 5 µA @ 200 lux fluorescent

light

Current proportional to illumination level (not true at very low levels!)

These values are calculated, the accuracy is about +/-20%! The performance varies over

temperature and may be strongly reduced at extreme temperatures.

0.00001

0.0001

0.001

0.01

0.1

100

010 20 30 40 50 60 70 80 90 100

Time [ms]

Current [mA]

USER MANUAL V1.05

STM 320 / STM 320C / STM 320U

4APPLICATIONS INFORMATION

4.1 Helical antenna

868 MHz / 902 MHz

315 MHz

Antenna recommendation:

STM 320 without host PCB STM 320 with host PCB

Host PCB

GND plane

Glass, wood, concrete, metal

868/902 MHz: > 2 mm

315 MHz: > 4 mm

868/902 MHz: > 5 mm

315 MHz: > 10 mm

Plastic

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