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Wireless Energy Meter
SKU: SYS-72027-ENL/01
Quickstart
This is a
Once WEM is installed and connected to the power line for the first time, it goes into the Idle state. To add WEM to the Z-Wave network, it is first necessary to put the primary Z-Wave controller into inclusion mode (refer to the controller user manual). Then, press the WEM button for about 1 second. WEM enters the Learning state and the LED changes blinking pattern. When the learning phase ends successfully, WEM enters the Synchronizing state, and then the Joined, Comm. Ok state. If the clamp is not placed correctly, the Joined, Clamp Rev. state is entered in place of the Joined, Comm. Ok one. If the inclusion fails, WEM goes back to the Idle state.
Important safety information
Please read this manual carefully. Failure to follow the recommendations in this manual may be dangerous or may violate the law. The manufacturer, importer, distributor and seller shall not be liable for any loss or damage resulting from failure to comply with the instructions in this manual or any other material. Use this equipment only for its intended purpose. Follow the disposal instructions. Do not dispose of electronic equipment or batteries in a fire or near open heat sources.What is Z-Wave?
Z-Wave is the international wireless protocol for communication in the Smart Home. This device is suited for use in the region mentioned in the Quickstart section.
Z-Wave ensures a reliable communication by reconfirming every message (two-way communication) and every mains powered node can act as a repeater for other nodes (meshed network) in case the receiver is not in direct wireless range of the transmitter.
This device and every other certified Z-Wave device can be used together with any other certified Z-Wave device regardless of brand and origin as long as both are suited for the same frequency range.
If a device supports secure communication it will communicate with other devices secure as long as this device provides the same or a higher level of security. Otherwise it will automatically turn into a lower level of security to maintain backward compatibility.
For more information about Z-Wave technology, devices, white papers etc. please refer to www.z-wave.info.
Product Description
The Wireless Energy Meter (WEM) is a smart device that performs quasi real-time measurements of the electricity consumption of the home by continuously monitoring the power line.WEM will be installed into the main distribution board, with the amperometric clamp closed around the live wire of a 1-phase system. This allows WEM to measure the line voltage and current, and thus compute the total power and energy consumption of the home.After a simple configuration phase, WEM starts reporting the measurement it takes to a central controller device, such as a home gateway, by means of the Z-Wave wireless technology. Z-Wave is a widespread and interoperable wireless home control technology based on the ITU-T 9959 open standard.WEM has an intuitive user interface, with a LED informing the user about its current state, and a push button to let the user issue the necessary commands. WEM can measure and report the following physical dimensions: Total Accumulated Active Energy (Wh), Instantaneous Active Power (W), RMS Voltage (V), RMS Current (A).WEM allows to fine-tune the way the measurements are performed and reported by means of several parameters, which can be set by most controllers on the market.
Prepare for Installation / Reset
Please read the user manual before installing the product.
In order to include (add) a Z-Wave device to a network it must be in factory default state. Please make sure to reset the device into factory default. You can do this by performing an Exclusion operation as described below in the manual. Every Z-Wave controller is able to perform this operation however it is recommended to use the primary controller of the previous network to make sure the very device is excluded properly from this network.
Reset to factory default
This device also allows to be reset without any involvement of a Z-Wave controller. This procedure should only be used when the primary controller is inoperable.
WEM can be reset to the factory default values at any time by pressing the button for about 10 seconds, until the LED turns steadily on. WEM performs the reset operations and the button can be released. When the reset is complete, WEM enters the Idle state. Note that this reset procedure does not remove WEM from a classic Z-Wave controller or in situations where WEM cannot communicate with the Z-Wave Plus controller. Therefore this procedure should be used only when the primary controller is missing or inoperable. To remove WEM from the network under normal circumstances the exclusion procedure should be used.
Safety Warning for Mains Powered Devices
ATTENTION: only authorized technicians under consideration of the country-specific installation guidelines/norms may do works with mains power. Prior to the assembly of the product, the voltage network has to be switched off and ensured against re-switching.
Inclusion/Exclusion
On factory default the device does not belong to any Z-Wave network. The device needs to be added to an existing wireless network to communicate with the devices of this network. This process is called Inclusion.
Devices can also be removed from a network. This process is called Exclusion. Both processes are initiated by the primary controller of the Z-Wave network. This controller is turned into exclusion respective inclusion mode. Inclusion and Exclusion is then performed doing a special manual action right on the device.
Inclusion
Once WEM is installed and connected to the power line for the first time, it goes into the Idle state. To add WEM to the Z-Wave network, it is first necessary to put the primary Z-Wave controller into inclusion mode (refer to the controller user manual). Then, press the WEM button for about 1 second. WEM enters the Learning state and the LED changes blinking pattern. When the learning phase ends successfully, WEM enters the Synchronizing state, and then the Joined, Comm. Ok state. If the clamp is not placed correctly, the Joined, Clamp Rev. state is entered in place of the Joined, Comm. Ok one. If the inclusion fails, WEM goes back to the Idle state.Exclusion
To remove WEM from the network, it is first necessary to put the primary Z-Wave controller into exclusion mode (refer to the controller user manual). Then, press the WEM button for about 3 seconds. WEM enters the Leaving state, and waits for the controller to acknowledge its exclusion. When the exclusion process is complete, WEM goes into the Idle state. If the exclusion process fails, WEM goes back to its previous state.Quick trouble shooting
Here are a few hints for network installation if things dont work as expected.
- Make sure a device is in factory reset state before including. In doubt exclude before include.
- If inclusion still fails, check if both devices use the same frequency.
- Remove all dead devices from associations. Otherwise you will see severe delays.
- Never use sleeping battery devices without a central controller.
- Dont poll FLIRS devices.
- Make sure to have enough mains powered device to benefit from the meshing
Association - one device controls an other device
Z-Wave devices control other Z-Wave devices. The relationship between one device controlling another device is called association. In order to control a different device, the controlling device needs to maintain a list of devices that will receive controlling commands. These lists are called association groups and they are always related to certain events (e.g. button pressed, sensor triggers, ...). In case the event happens all devices stored in the respective association group will receive the same wireless command wireless command, typically a 'Basic Set' Command.
Association Groups:
| Group Number | Maximum Nodes | Description |
|---|---|---|
| 1 | 1 | Z-Wave Plus LifelineWEM uses the Lifeline association group to send the following commands:Time Parameters Get,Configuration Report,Meter Report,Meter Table Current Data Report,Meter Table Historical Data Report,Device Reset Locally Notification. |
Configuration Parameters
Z-Wave products are supposed to work out of the box after inclusion, however certain configuration can adapt the function better to user needs or unlock further enhanced features.
IMPORTANT: Controllers may only allow configuring signed values. In order to set values in the range 128 ... 255 the value sent in the application shall be the desired value minus 256. For example: To set a parameter to 200 it may be needed to set a value of 200 minus 256 = minus 56. In case of a two byte value the same logic applies: Values greater than 32768 may needed to be given as negative values too.
Parameter 10: Avg_Period
Avg_Period determines the time window used to compute an average over the line readings. Each unit of Avg_Period is worth 5 seconds. If Avg_Period = 0 no average is computed and the last sample is returned. Note that the maximum average window coincides with the minimum value of Max_Rep_Interval. Also note that a delay of up to the average window can be introduced in returning the measurements (each measurement is returned only when ready). Size: 1 Byte, Default Value: 1
| Setting | Description |
|---|---|
| 0 - 6 | seconds x 5 |
Parameter 2: Meas_Period
Meas_Period is the unit period for computing a measurement. WEM checks for changes in the line measures every Meas_Period. If there are meaningful changes, a report is sent to the controller. Therefore Meas_Period also represents represents the minimum reporting interval, i.e. 1/Meas_Period is the maximum reporting frequency. Size: 1 Byte, Default Value: 30
| Setting | Description |
|---|---|
| 30 - 120 | seconds |
Parameter 3: Max_Rep_Interval
Max_Rep_Interval is the maximum time that can elapse without sending a report. If no meaningful events occur, WEM sends one full measurement every Max_Rep_Interval seconds. Size: 1 Byte, Default Value: 6
| Setting | Description |
|---|---|
| 3 - 60 | seconds x 10 |
Parameter 4: Res_Active_Power
Res_Active_Power is the minimum quantity (resolution) that triggers a report for active power. It can be used to tune the sensitivity of WEM to changes in this physical dimension. Size: 1 Byte, Default Value: 4
| Setting | Description |
|---|---|
| 1 - 100 | Watt |
Parameter 5: Res_RMS_Voltage
Res_RMS_Voltage is the minimum quantity (resolution) that triggers a report for active power. It can be used to tune the sensitivity of WEM to changes in this physical dimension. Size: 2 Byte, Default Value: 10
| Setting | Description |
|---|---|
| 1 - 1000 | Volt x 0.1 |
Parameter 6: Res_RMS_Current
Res_RMS_Current is the minimum quantity (resolution) that triggers a report for active power. It can be used to tune the sensitivity of WEM to changes in this physical dimension. Size: 2 Byte, Default Value: 10
| Setting | Description |
|---|---|
| 1 - 1000 | Ampere x 0.01 |
Parameter 8: Clamp_reversed
Clamp_Reversed is a read-only parameter that the controller can query to learn about the current placement of the clamp. During the measurement phase, WEM checks whether the clamp has been placed correctly or reversed (with regard to phase rotation). In the latter case, WEM notifies the user with a different blink pattern and stores this information into the Clamp_Reversed parameter. The clamp is placed correctly if Clamp_Reversed = 0 and is reversed if Clamp_Reversed = 1. If Clamp_Reversed = 0xFF a fault occurred and it was not possible to detect the clamp position. Size: 1 Byte, Default Value: 255
| Setting | Description |
|---|---|
| 0 - 255 | only 0,1, 255 (0xFF) are valid |
Parameter 9: Enable_CRC16
Enable_CRC16 provides for an extra layer of redundancy in order to protect low bit rate transmissions against radio channel errors. This applies to the reports and frames sent spontaneous by WEM. Requests from the controller are always answered as asked. WEM will send CRC16 encapsulated frames to the associated node if this has proved to support it and Enable_CRC16 is set to 1. Otherwise, reports will be sent with no extra CRC16 encapsulation. Size: 1 Byte, Default Value: 1
| Setting | Description |
|---|
Technical Data
| Hardware Platform | ZM5202 |
| Device Type | Whole Home Meter - Simple |
| Network Operation | Always On Slave |
| Firmware Version | HW: 1 FW: 1.01:00.07 |
| Z-Wave Version | 6.61.00 |
| Certification ID | ZC10-17115826 |
| Z-Wave Product Id | 0x0301.0x0048.0x010F |
| Color | White |
| Supported Meter Type | Electric Energy |
| Frequency | XXfrequency |
| Maximum transmission power | XXantenna |
Supported Command Classes
- Association Grp Info
- Association V2
- Configuration
- Crc 16 Encap
- Device Reset Locally
- Manufacturer Specific V2
- Meter Tbl Monitor V2
- Meter V4
- Powerlevel
- Time Parameters
- Time V2
- Version V2
- Zwaveplus Info V2
Explanation of Z-Wave specific terms
- Controller — is a Z-Wave device with capabilities to manage the network. Controllers are typically Gateways,Remote Controls or battery operated wall controllers.
- Slave — is a Z-Wave device without capabilities to manage the network. Slaves can be sensors, actuators and even remote controls.
- Primary Controller — is the central organizer of the network. It must be a controller. There can be only one primary controller in a Z-Wave network.
- Inclusion — is the process of adding new Z-Wave devices into a network.
- Exclusion — is the process of removing Z-Wave devices from the network.
- Association — is a control relationship between a controlling device and a controlled device.
- Wakeup Notification — is a special wireless message issued by a Z-Wave device to announces that is able to communicate.
- Node Information Frame — is a special wireless message issued by a Z-Wave device to announce its capabilities and functions.