USER MANUAL
V0.904
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
STM110C User Manual V0.904
February 18, 2008 2:00 PM
Page 6/40
STM110C
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 100.000 lx
Operation startup time with empty energy store
< 10 min @ 400 lx
Operation time during total darkness
> 60 h
1)
1)
storage is filled @ 1000 lx (4.2V in Goldcap)
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 pro-
vided.
After wake-up, a radio telegram (input data, unique 32-bit sensor ID, checksum) is trans-
mitted 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: >5LSB of AD_1 input, >6LSB of AD_0
or >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 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!