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Z-Wave messages
33-00131ES—01
The thermostat can be included or excluded from the Z-Wave network. This
action requires the controller set in inclusion mode. The device is included
to the Z-Wave network after sending the node information to the controller.
The controller is responsible for assigning the home ID and device ID to
the included device. The thermostat can also act as a repeater to forward
messages to other devices in the Z-Wave network. Repeating messages allows
communication of devices that are not in the direct reach of Z-wave protocol.
The thermostat can be associated with other devices in the system. Being
associated means that the thermostat is able to send messages directly to any
other device. During the association process the return route is acquired from
the primary controller. The thermostat then uses this return route to access the
distant node. The association is a connection between primary and secondary
devices. It is used to determine the relationship of devices in the network. Both
primary and secondary controllers can set up associations.
The thermostat supports one association grouping and five nodes can be
associated with this grouping. The following messages are sent to associated
nodes for grouping #1:
• Basic
• Multilevel Sensor
• Thermostat Mode
• Thermostat Setpoint
• Thermostat Fan Mode
• Thermostat Operating State
• Thermostat Fan State
When requested from the Z-Wave controller, the thermostat adjusts its setpoint
in order to decrease the power consumption of the HVAC equipment.
In addition, using an Internet gateway enables the person to control the
thermostat remotely through the Internet.
The thermostat can send the message containing the actual fan mode position.
The other devices are able to change the fan mode of the thermostat. After
the message is received, the fan mode is changed to the desired value (if this
value is possible).
For the thermostat the possible values are On, Auto and Circ.
The thermostat sends the indoor temperature using the Multilevel Sensor
command class.
Upon request (GET command) the thermostat sends the corresponding report.
The thermostat can send the message containing the actual setpoint value
based on setpoint change.
Other Z-Wave devices are able to modify the setpoint of the thermostat. The
absolute value can be sent by the controller and thermostat will change the
setpoint to this value.
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