Hello, thank you for your question,
FMB120 has 2 DOUT's. If You want deactivate 12V relay
whitch use DOUT1, You should use command setdigout:
SMS format: setdigout XY <timeoutX> <timeoutY> <speedX> <speedY>
In Your case command should be:
To deactivate DOUT1 - <space><space>setdigout 0?
To activate DOUT1 - <space><space>setdigout 1?
Best regards
