Thank for your answers.
All my power distribution is 230V 2-phase.
I tried this:
- on the same branch circuit where I have the CM15: unpluged the CM15, put a TM13 into the same socket.
YES the shutters continue to respond to RF !
- put the CM15 (connect to my PC) on the branch circuit where are the SW10.
YES the shutters continue to respond to RF and NOW respond to AHP !
- put the CM15 (connect to my PC) on a third branch circuit (where the SW10 are not installed).
YES the shutters respond to RF and NOW respond to AHP !
So it seems I have a problem on the first branch circuit where I put the CM15.
I do not know why because the 3 branch circuits I tested have the 3 same circuit breaker in the electrical panel.
I continue the tests from others branch circuits (I have 23 branch circuits from the 'house' electrical panel for the house, and 18 for outdoor with 4 electrical panel).
Actually, to resolve my problem, I put my PC and CM15 on a branch circuit where I can run AHP.
The PC is connected by wifi to my router ADSL, so I can control my home by Internet (PC, CM15, Apache server, AHP and some scripts in Perl and PHP I wrote).
It appears there is an appliance on the problem branch circuit which is attenuating the X10 signal, to the extent that the lower level X10 signal transmitted by the CM15 is being lost. Appliances with switching power supplies often have heavy capacitive filtering at the AC input which can attenuate X10 signals. Typical appliances like this are PC, UPS, TV, VCR, DVD, Stereo. Test by unplugging all such appliances from the wall socket - merely turning them off is not enough. If an offending appliance is identified, it can be isolated from the power line with a filter like the Marmitek FM10 Plug-in Filter.
However if you are satisfied with the operation of AHP where you now have the CM15 plugged in, you can now try this:
Create a macro by opening the Macro designer. Click on "Advanced functions" in the drop down menu on the right. Drag in the icon on the right "Extended code" and set its housecode/unit address to that of your SW10. For "Command byte" in the icon, enter the value 0x03. For "Data byte", enter the value 0x06.
Create a second macro as above but set the Data byte to 0x0C.
Create a third macro as above but set the Data byte to 0x12.
Now in the room view, run each of these macros in turn and observe the effect of each on your shutter.