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| documentation | Zwave Clamp - ZWave |
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Zwave Clamp Clamp Energy Meter
This describes the Z-Wave device Zwave Clamp, manufactured by Seco with the thing type UID of seco_clamp_00_000.
The device is in the category of Sensor, defining Device used to measure something.
The Zwave Clamp 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 Wireless Energy Meter performs real-time measurement of power, energy, voltage, and current, and transmits them wirelessly to a central controller.
Inclusion Information
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.
Exclusion Information
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.
Channels
The following table summarises the channels available for the Zwave Clamp -:
| Channel Name | Channel ID | Channel Type | Category | Item Type |
|---|---|---|---|---|
| Electric meter (amps) | meter_current | meter_current | Energy | Number |
| Electric meter (watts) | meter_watts | meter_watts | Energy | Number |
| Electric meter (kWh) | meter_kwh | meter_kwh | Energy | Number |
| Electric meter (volts) | meter_voltage | meter_voltage | Energy | Number |
| Clock Time Offset | time_offset | time_offset | Time | Number |
Electric meter (amps)
Indicates the instantaneous current consumption.
The meter_current channel is of type meter_current and supports the Number item and is in the Energy category. This is a read only channel so will only be updated following state changes from the device.
Electric meter (watts)
Indicates the instantaneous power consumption.
The meter_watts channel is of type meter_watts and supports the Number item and is in the Energy category. This is a read only channel so will only be updated following state changes from the device.
Electric meter (kWh)
Indicates the energy consumption (kWh).
The meter_kwh channel is of type meter_kwh and supports the Number item and is in the Energy category. This is a read only channel so will only be updated following state changes from the device.
Electric meter (volts)
Indicates the instantaneous voltage.
The meter_voltage channel is of type meter_voltage and supports the Number item and is in the Energy category. This is a read only channel so will only be updated following state changes from the device.
Clock Time Offset
Provides the current time difference for the devices time.
The time_offset channel is of type time_offset and supports the Number item and is in the Time category.
Device Configuration
The following table provides a summary of the 8 configuration parameters available in the Zwave Clamp. Detailed information on each parameter can be found in the sections below.
| Param | Name | Description |
|---|---|---|
| 2 | MEAS_PERIOD | MEAS_PERIOD |
| 3 | MAX_REP_INTERVAL | MAX_REP_INTERVAL |
| 4 | RES_ACTIVE_POWER | RES_ACTIVE_POWER |
| 5 | RES_RMS_VOLTAGE | RES_RMS_VOLTAGE |
| 6 | RES_RMS_CURRENT | RES_RMS_CURRENT |
| 8 | CLAMP_REVERSED | CLAMP_REVERSED |
| 9 | ENABLE_CRC16 | ENABLE_CRC16 |
| 10 | AVG_PERIOD | AVG_PERIOD |
Parameter 2: MEAS_PERIOD
MEAS_PERIOD MEAS_PERIOD represents the minimum reporting interval, i.e. 1/MEAS_PERIOD is the maximum reporting frequency. WEM checks for changes in the line measures every MEAS_PERIOD. If there are meaningful changes, a report is sent to the controller. Values in the range 30 to 120 may be set.
The manufacturer defined default value is 30.
This parameter has the configuration ID config_2_1 and is of type INTEGER.
Parameter 3: MAX_REP_INTERVAL
MAX_REP_INTERVAL Units of 10 sec
MAX_REP_INTERVAL is the maximum time that can elapse without sending a report. If no meaningful events occur, WEM sends one measurement every MAX_REP_INTERVAL seconds. Notice that, since the check is performed every MEAS_PERIOD, the reporting interval is rounded to the smallest multiple integer of MEAS_PERIOD (e.g. MEAS_PERIOD = 45, MAX_REP_INTERVAL = 12, reports are sent every 135 s). Values in the range 3 to 60 may be set.
The manufacturer defined default value is 6.
This parameter has the configuration ID config_3_1 and is of type INTEGER.
Parameter 4: RES_ACTIVE_POWER
RES_ACTIVE_POWER The minimum quantity (resolution) that triggers a report Values in the range 1 to 100 may be set.
The manufacturer defined default value is 4.
This parameter has the configuration ID config_4_1 and is of type INTEGER.
Parameter 5: RES_RMS_VOLTAGE
RES_RMS_VOLTAGE Units of 100 mV
The minimum quantity (resolution) that triggers a report Values in the range 1 to 1000 may be set.
The manufacturer defined default value is 10.
This parameter has the configuration ID config_5_2 and is of type INTEGER.
Parameter 6: RES_RMS_CURRENT
RES_RMS_CURRENT Units of 10 mA
The minimum quantity (resolution) that triggers a report Values in the range 1 to 1000 may be set.
The manufacturer defined default value is 10.
This parameter has the configuration ID config_6_2 and is of type INTEGER.
Parameter 8: CLAMP_REVERSED
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 following option values may be configured -:
| Value | Description |
|---|---|
| 0 | Clamp placed Correctly |
| 1 | Clamp is REVERSED |
| 255 | Could not detect position |
The manufacturer defined default value is 255 (Could not detect position).
This parameter has the configuration ID config_8_1 and is of type INTEGER.
This is a read only parameter.
Parameter 9: ENABLE_CRC16
ENABLE_CRC16 ENABLE_CRC16 parameter 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 the ENABLE_CRC16 parameter is set to 1. Otherwise, reports will be sent with no extra CRC16 encapsulation. The following option values may be configured -:
| Value | Description |
|---|---|
| 0 | False |
| 1 | True |
The manufacturer defined default value is 1 (True).
This parameter has the configuration ID config_9_1 and is of type INTEGER.
Parameter 10: AVG_PERIOD
AVG_PERIOD Units of 5 seconds
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). Values in the range 0 to 6 may be set.
The manufacturer defined default value is 1.
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 Zwave Clamp 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.
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_METER_V3 | |
| COMMAND_CLASS_METER_TBL_MONITOR_V1 | |
| COMMAND_CLASS_CRC_16_ENCAP_V1 | |
| COMMAND_CLASS_ASSOCIATION_GRP_INFO_V1 | |
| COMMAND_CLASS_DEVICE_RESET_LOCALLY_V1 | |
| COMMAND_CLASS_ZWAVEPLUS_INFO_V1 | |
| COMMAND_CLASS_CONFIGURATION_V1 | |
| COMMAND_CLASS_MANUFACTURER_SPECIFIC_V1 | |
| COMMAND_CLASS_POWERLEVEL_V1 | |
| COMMAND_CLASS_ASSOCIATION_V2 | |
| COMMAND_CLASS_VERSION_V2 | |
| COMMAND_CLASS_TIME_V1 | |
| COMMAND_CLASS_TIME_PARAMETERS_V1 |
Documentation Links
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