Tweak advanced ZWave settings

If you want to tweak some specific settings of your ZWave devices then read this article.

Why tweak settings ?

ZWave devices have additional settings that aren't available through LinuxMCE WebUI. What kind of tweaks you ask? I have dimmable ZWave wall light switch (ZWave HomePro ZDW232). LinuxMCE can use this switch and send it standard commands like to turn it ON/OFF or to set light power from 10-90%, for most people this is more than enough.

I wanted to invert this switch. When you press top of the switch light turns ON when you press bottom of the switch light turns OFF. The issue was that all other switches in my home work opposite of that. Luckily this switch supports "Invert Switch" function so I can invert it's function. From ZWave HomePro ZDW232 switch's manual I can see:

The LED on the ZDW232 will by default, turn ON when the load attached is turned ON. To make the LED turn ON when the load attached is turned OFF instead, set parameter 3 to a value of 1.

• Invert Switch
  • Parameter No: 4
  • Length: 1 Byte
  • Valid Values = 0 or 1 (default value is 0)

To change the top of the switch to OFF and the bottom of the switch to ON, set parameter 4 to 1.

Also one nice feature is "Light Light" to turn on blue LED when switch is turned off, so you can find it more easily in the dark.

• Night Light
  • Parameter No: 3
  • Length: 1 Byte
  • Valid Values = 0 or 1 (default value is 0)

The LED on the ZDW232 will by default, turn ON when the load attached is turned ON. To make the LED turn ON when the load attached is turned OFF instead, set parameter 3 to a value of 1.

Gathering info

To change any of these settings you need just one more info and that is ZWave NodeID, or as it is labeled in WebUI ZWave Port/Channel Number

To find out what is the Port/Channel Number of ZWave device you want to tweak settings for go to Wizards -> Devices -> Lights. On that screen you should see Port/Channel Number of ZWave device you want to tweak.

Tweak ZWave device settings

Now that we have all needed info we can proceed. You will use your ZWave master control device to send these specific commands to ZWave device you want to change settings.

To change configuration settings on ZWave devices in 1204, use the Automation -> Advanced ZWave.

• Go to Wizard -> Devices -> Interfaces
• Choose Zwave device with "Device Template #: 1754"
• Click Advanced button
• Click Send command to device button
• Choose Set Config Param from drop down menu
• Fill these values:
  • 48 Value (int)  : is the value in your case 1
  • 239 NodeID (int) : this is the ZWave node ID (Port/Channel) not the device number.
  • 248 Parameter ID (int) : the parameter number in your case 3

When you send this command ZWave HomePro ZDW232 wall switch will turn on Night Light LED function.