User's Manual

USER MANUAL

TCM 300 / TCM 300C / TCM 300U

TCM 320 / TCM 320C / TCM 320U

A.3 Command telegrams and messages

Before sending the next command via serial interface please always wait for the

response to the previous command from the module. The reaction time is below

5ms. Be aware that an already received radio telegram might (concurrently to the

command) be sent through the serial port before the command gets processed.

A.3.1 ID Range commands

Every TCM 300 supports a unique 32 bit ID and in addition a range of 128 IDs starting at

an BaseID address. At production, every TCM 300 is programmed with a unique ID and a

BaseID address. The BaseID number can be read via the serial interface. In order to allow a

replacement of one unit with another unit (without having to go through the learning pro-

cedure with every receiver), the ID range can be changed via the serial interface.

The allowed ID range is from 0xFF80_0000 to 0xFFFF_FFFE.

32 0

BaseID

0xFFFF_FFFF cannot be used. This address is reserved as broadcast ID.

In order to prevent misuse, this feature can only be used 10 times!

Please note: The unique ID cannot be changed.

Command (TCT)

Response (RCT)

SET_BASEID

OK, ERR, ERR_IDRANGE

RD_BASEID

INF_BASEID

A.3.2 Receiver sensitivity commands

The receiver sensitivity can be changed by the following commands. In LOW sensitivity

mode, only transmitters in the vicinity of the module are received.

Command (TCT)

Response (RCT)

SET_RX_SENSITIVITY

RD_RX_SENSITIVITY

INF_RX_SENSITIVITY

A.3.3 Reset command

Command (TCT)

Response (RCT)

RESET

A.3.4 SW Version

Command (TCT)

Response (RCT)

RD_SW_VER

INF_SW_VER

25 most significant bits