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User Manual May 2019 | Page 15/49
USER MANUAL
Scavenger Transmitter Module
STM 330 / STM 331 STM 331U / STM 332U / STM 333U
(Stepcode DE and later)
3
FUNCTIONAL DESCRIPTION
3.1
Commissioning and mode change
The module will be shipped in transport mode to switch off the energy store for long term
shelf storage and air cargo. The mode can be changed by pressing the learn button. The
procedure for enter the standard mode has not been changed to keep compatible with
modules before stepcode DE.
Make sure that the solar cell will get enough light for mode change and/or learn telegram.
Change from transport to standard mode
After pressing the learn button 1x short (1s) the radio module will enter Standard Mode
(Mode 1). The LED will flash 1x and a standard learn telegram will be sent.
Change from standard to secure mode
After pressing the learn button 2x long (2x 5s, pause <1s) the radio module will enter
Secure Mode (Mode 2). A secure learn telegram will be sent and the LED will flash 2x.
Change from secure or standard mode to transport mode
After pressing the learn button 1x long (5s) the radio module will enter Transport Mode
(Mode 3). A signal telegram will be sent and the LED will flash 3x.
The following diagram illustrates all implemented mode transitions.
Short press:
1 s
(firmware 0.1 – 3.0 s)
Long press:
5 s
(firmware 3 – 7 s)
2x long press with very short pause of max. 1 s between
