The DCH-Z110 needs to be configured to Using Sensor Binary Report. This is configuration setting 7, bit 4.
To enable DCH-Z110 on the Vera you add it as a generic Zwave device. After adding it should show up as 4 devices, Temperature, Light, Door and Window and the general Sensor.
Click the general sensor, then select device options, add configuration setting. Variable 7, 1 byte dec, desired value: 16.
Now you can use the sensor input from the DCH door sensor on your Vera.