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USER MANUAL V0.6

STM 31x / STM 31xC User Manual V0.6 | Page 17/28

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.