Some parameters inside the STM110 module must be configured and the transmission interval or ciclic sending will be defined with parameters like T-wake up, T-send or T-interval. The load discharge of the hardware module will depend also of this configuration parameters.

The sensors send event or time controlled telegrams to the receiver. Temperature value time controlled

Measuring Principle and Production of Telegram

A: event controlled

By actuating the learning button of the device, the internal microprocessor is woken up, the measuring value for temperature is detected and a telegram to the receiver is generated. 

B: time controlled

The internal microprocessor is woken up within a time interval of approx. 1,6 minutes (T_wake up) and the measuring value for temperature is detected. If the status of an input has changed since the last inquiry (temperature change > 2% (>0,8°C), a telegram is produced immediately. If the input value temperature remain unchanged compared with the previous telegrams, a telegram is automatically produced at the latest after expiration of the fixed sending time of approx. 16 minutes (T_send). 

After a telegram is sent, regardless whether produced by status changes or after expiration of Tsend, the times T_wake up and T_intervall are restarted.
 

STM Interval Transmitting