User's Manual

USER MANUA
L
V0.6
© 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 17
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STM 31X / STM 31XC
2.8.2 Teach-in telegram
In case of a wake-up via WAKE1 pin (LRN input) the module transmits a teach-in telegram.
 If the manufacturer code is not set, the module transmits a normal telegram according to 2.8.1
with the difference that DI_3=0.
 If a manufacturer code is set, this teach-in telegram contains special information as described
below.
With this special teach-in telegram it is possible to identify the manufacturer of a device
and the function and type of a device. There is a list available from the EnOcean Alliance
describing the functionalities of the respective products.
ORG = 0x07 (Telegram type “4BS”)
DATA_BYTE0..3 see below
LRN Type = 1
LRN = 0
DI0..DI2: current status of digital inputs
Profile, Type, Manufacturer-ID defined by manufacturer
RE0..2: set to 0
ID_BYTE3 = module identifier (Byte3)
ID_BYTE2 = module identifier (Byte2)
ID_BYTE1 = module identifier (Byte1)
ID_BYTE0 = module identifier (Byte0)
ORG Data_Byte3 Data_Byte2 Data_Byte1 Data_Byte0 ID
Function
6 Bit
Type
7 Bit
Manufacturer-
ID 11 Bit
LRN Type
1Bit
RE2
1Bit
RE1
1Bit
RE0
1Bit
LRN
1Bit
DI2
1Bit
DI1
1Bit
DI0
1Bit
2.9 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 1.2 ms. The delay between the three transmis-
sion bursts is affected at random.
If a new wake-up occurs before all sub-telegrams have been sent, the series of
transmissions is stopped and a new series of telegrams with new valid measure-
ment values is transmitted.