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title: QZ2140-840 - ZWave
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# QZ2140-840 IQ Dimmer (PD-100)
This describes the Z-Wave device *QZ2140-840*, manufactured by *Qolsys* with the thing type UID of ```qolsys_qz2140-840_00_000```.

The device is in the category of *Power Outlet*, defining Small devices to be plugged into a power socket in a wall which stick there.

![QZ2140-840 product image](https://opensmarthouse.org/zwavedatabase/1376/image/)


The QZ2140-840 supports routing. This allows the device to communicate using other routing enabled devices as intermediate routers.  This device is also able to participate in the routing of data between other devices in the mesh network.

## Overview

The IQ Dimmer is plug in lamp module that allows you control a lamp on, off or any degree in between. It plugs into any standard outlet and acts as a repeater to strengthen the performance of your Z-Wave network.

### Inclusion Information

1. Place your network controller into inclusion mode by following the controller manufacturer's instructions.

2. When the controller is ready, single press the button on the front of the IQ Dimmer. 

### Exclusion Information

1. Place your network controller into exclusion mode by following the controller manufacturer's instructions.

2. When the controller is ready, single press the button on the front of the IQ Dimmer. 

### General Usage Information



## Channels

The following table summarises the channels available for the QZ2140-840 -:

| Channel Name | Channel ID | Channel Type | Category | Item Type |
|--------------|------------|--------------|----------|-----------|
| Dimmer | switch_dimmer | switch_dimmer | DimmableLight | Dimmer | 
| Scene Number | scene_number | scene_number |  | Number | 

### Dimmer
The brightness channel allows to control the brightness of a light.
            It is also possible to switch the light on and off.

The ```switch_dimmer``` channel is of type ```switch_dimmer``` and supports the ```Dimmer``` item and is in the ```DimmableLight``` category.

### Scene Number
Triggers when a scene button is pressed.

The ```scene_number``` channel is of type ```scene_number``` and supports the ```Number``` item.



## Device Configuration

The following table provides a summary of the 3 configuration parameters available in the QZ2140-840.
Detailed information on each parameter can be found in the sections below.

| Param | Name  | Description |
|-------|-------|-------------|
| 3 | Nightlight | When should LED be illuminated. When device is on, off or never. |
| 9 | Dimming Resolution Levels | Percent to change dimmer level per tick. |
| 10 | Dimming Resolution Speed | The time duration of each tick, in 10 ms units. |

### Parameter 3: Nightlight

When should LED be illuminated. When device is on, off or never.

The following option values may be configured, in addition to values in the range 0 to 2 -:

| Value  | Description |
|--------|-------------|
| 0 | LED ON when device OFF |
| 1 | LED ON when device ON |
| 2 | LED Always OFF |

The manufacturer defined default value is ```0``` (LED ON when device OFF).

This parameter has the configuration ID ```config_3_1``` and is of type ```INTEGER```.


### Parameter 9: Dimming Resolution Levels

Percent to change dimmer level per tick.

Values in the range 1 to 99 may be set.

The manufacturer defined default value is ```1```.

This parameter has the configuration ID ```config_9_1``` and is of type ```INTEGER```.


### Parameter 10: Dimming Resolution Speed

The time duration of each tick, in 10 ms units.

Values in the range 1 to 255 may be set.

The manufacturer defined default value is ```3```.

This parameter has the configuration ID ```config_10_1``` and is of type ```INTEGER```.


## Association Groups

Association groups allow the device to send unsolicited reports to the controller, or other devices in the network. Using association groups can allow you to eliminate polling, providing instant feedback of a device state change without unnecessary network traffic.

The QZ2140-840 supports 1 association group.

### Group 1: Lifeline

The Lifeline association group reports device status to a hub and is not designed to control other devices directly. When using the Lineline group with a hub, in most cases, only the lifeline group will need to be configured and normally the hub will perform this automatically during the device initialisation.
Lifeline association only supports the "manual reset" event.

Association group 1 supports 1 node.

## Technical Information

### Endpoints

#### Endpoint 0

| Command Class | Comment |
|---------------|---------|
| COMMAND_CLASS_NO_OPERATION_V1| |
| COMMAND_CLASS_BASIC_V1| |
| COMMAND_CLASS_SWITCH_MULTILEVEL_V3| |
| COMMAND_CLASS_SCENE_ACTIVATION_V1| |
| COMMAND_CLASS_SCENE_ACTUATOR_CONF_V1| |
| COMMAND_CLASS_TRANSPORT_SERVICE_V1| |
| COMMAND_CLASS_ASSOCIATION_GRP_INFO_V1| |
| COMMAND_CLASS_DEVICE_RESET_LOCALLY_V1| |
| COMMAND_CLASS_ZWAVEPLUS_INFO_V1| |
| COMMAND_CLASS_SUPERVISION_V1| |
| COMMAND_CLASS_CONFIGURATION_V1| |
| COMMAND_CLASS_MANUFACTURER_SPECIFIC_V1| |
| COMMAND_CLASS_POWERLEVEL_V1| |
| COMMAND_CLASS_FIRMWARE_UPDATE_MD_V1| |
| COMMAND_CLASS_ASSOCIATION_V2| |
| COMMAND_CLASS_VERSION_V2| |
| COMMAND_CLASS_SECURITY_V1| |
| COMMAND_CLASS_SECURITY_2_V1| |

### Documentation Links

* [zq2140-840 Guide](https://opensmarthouse.org/zwavedatabase/1376/reference/IQ_Dimmer_UG_Online.pdf)

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