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User Manual May 2019 | Page 16/49
USER MANUAL
Scavenger Transmitter Module
STM 330 / STM 331 STM 331U / STM 332U / STM 333U
(Stepcode DE and later)
Customers can adapt the mode change options via module configuration:
* Transport/Standard/Secure Mode change on (default see diagram above) or
* limited to Transport & Secure Mode (details
) or
* limited Transport & Standard Mode (details
Before changing the operating mode please make sure to clear the device from all
receivers which have been taught to work with this device before. Otherwise the
receiver will ignore the telegrams and the application will not work.
The flag for actual mode itself is stored in non-volatile memory. After power down
reset the previous selected mode is active. The mode change is limited to 50
times. In normal application scenario only very few are required.
3.2
Simplified firmware flow chart for standard /secure mode
