Carlo Gavazzi WM15
Panel power analyser that measures power, energy, demand and harmonic distortion on three-phase systems.
The Carlo Gavazzi WM15 is a 96 x 96 mm panel power analyser that measures power, energy and harmonic distortion on three-phase systems with current transformers. This Modbus RTU template reads voltages, currents, power, power factor, energy, demand and THD values and lets you set the CT ratio, alarm and pulse output from ModbusCloud.
- Protocol
- Modbus RTU
- Connection
- RS485, 9600 baud
- Registers
- 256, read and write
- Brand
- Carlo Gavazzi
- Key readings
- Voltage per phase · Current per phase · Active power · Power factor · Frequency · Imported and exported energy · Harmonic distortion · Demand and maximum values
- Available commands
- Current transformer ratio · Demand integration time · Alarm setpoints · Pulse output · Energy and demand reset
- Compatible models
- WM15 96 (WM1596AV53XOS, WM1596AV53XOSPFB MID, WM1596AV53HOS)
- Last updated
Registers (256)
252 read, 66 write
| Name | Unit | Access | Address (Hidden until you enter your email) | Function (hidden) | Type (hidden) |
|---|---|---|---|---|---|
| Voltage L1-N | V | Read | |||
| Voltage L2-N | V | Read | |||
| Voltage L3-N | V | Read | |||
| Voltage L1-L2 | V | Read | |||
| Voltage L2-L3 | V | Read | |||
| Voltage L3-L1 | V | Read | |||
| Current L1 | A | Read | |||
| Current L2 | A | Read | |||
| Current L3 | A | Read | |||
| Active Power L1 | W | Read | |||
| Active Power L2 | W | Read | |||
| Active Power L3 | W | Read | |||
| Apparent Power L1 | VA | Read | |||
| Apparent Power L2 | VA | Read | |||
| Apparent Power L3 | VA | Read | |||
| Reactive Power L1 | var | Read | |||
| Reactive Power L2 | var | Read | |||
| Reactive Power L3 | var | Read | |||
| Voltage L-N System | V | Read | |||
| Voltage L-L System | V | Read | |||
| Active Power Total | W | Read | |||
| Apparent Power Total | VA | Read | |||
| Reactive Power Total | var | Read | |||
| Power Factor L1 | Read | ||||
| Power Factor L2 | Read | ||||
| Power Factor L3 | Read | ||||
| Power Factor Total | Read | ||||
| Phase Sequence | Read | ||||
| Frequency | Hz | Read | |||
| Active Energy Import Total | kWh | Read | |||
| Reactive Energy Import Total | kvarh | Read | |||
| Active Power Demand | W | Read | |||
| Active Power Demand Max | W | Read | |||
| Active Energy Import Partial | kWh | Read | |||
| Reactive Energy Import Partial | kvarh | Read | |||
| Active Energy Import L1 | kWh | Read | |||
| Active Energy Import L2 | kWh | Read | |||
| Active Energy Import L3 | kWh | Read | |||
| Active Energy Export Total | kWh | Read | |||
| Reactive Energy Export Total | kvarh | Read | |||
| Active Energy Export Partial | kWh | Read | |||
| Reactive Energy Export Partial | kvarh | Read | |||
| Apparent Energy Total | kVAh | Read | |||
| Apparent Energy Partial | kVAh | Read | |||
| Run Hour Meter | h | Read | |||
| Run Hour Meter Export | h | Read | |||
| Run Hour Meter Partial | h | Read | |||
| Run Hour Meter Export Partial | h | Read | |||
| Power Factor Lead/Lag L1 | Read | ||||
| Power Factor Lead/Lag L2 | Read | ||||
| Power Factor Lead/Lag L3 | Read | ||||
| Power Factor Lead/Lag Total | Read | ||||
| Inductive/Capacitive Load L1 | Read | ||||
| Inductive/Capacitive Load L2 | Read | ||||
| Inductive/Capacitive Load L3 | Read | ||||
| Inductive/Capacitive Load Total | Read | ||||
| THD Current L1 | % | Read | |||
| THD Current L2 | % | Read | |||
| THD Current L3 | % | Read | |||
| THD Voltage L1-N | % | Read | |||
| THD Voltage L2-N | % | Read | |||
| THD Voltage L3-N | % | Read | |||
| THD Voltage L1-L2 | % | Read | |||
| THD Voltage L2-L3 | % | Read | |||
| THD Voltage L3-L1 | % | Read | |||
| Current Demand L1 | A | Read | |||
| Current Demand L2 | A | Read | |||
| Current Demand L3 | A | Read | |||
| Current Demand Max L1 | A | Read | |||
| Current Demand Max L2 | A | Read | |||
| Current Demand Max L3 | A | Read | |||
| Current Max L1 | A | Read | |||
| Current Max L2 | A | Read | |||
| Current Max L3 | A | Read | |||
| Active Power Demand L1 | W | Read | |||
| Active Power Demand L2 | W | Read | |||
| Active Power Demand L3 | W | Read | |||
| Active Power Demand Max L1 | W | Read | |||
| Active Power Demand Max L2 | W | Read | |||
| Active Power Demand Max L3 | W | Read | |||
| Active Power Max L1 | W | Read | |||
| Active Power Max L2 | W | Read | |||
| Active Power Max L3 | W | Read | |||
| Active Power Demand Total | W | Read | |||
| Active Power Demand Max Total | W | Read | |||
| Active Power Max Total | W | Read | |||
| Apparent Power Demand | VA | Read | |||
| Apparent Power Demand Max | VA | Read | |||
| Apparent Power Max | VA | Read | |||
| Run Hour Meter Export (Grouped Table) | h | Read | |||
| Run Hour Meter (Grouped Table) | h | Read | |||
| Voltage L-N System (Grouped Table) | V | Read | |||
| Voltage L-L System (Grouped Table) | V | Read | |||
| Active Power Total (Grouped Table) | W | Read | |||
| Apparent Power Total (Grouped Table) | VA | Read | |||
| Reactive Power Total (Grouped Table) | var | Read | |||
| Power Factor Total (Grouped Table) | Read | ||||
| Phase Sequence (Grouped Table) | Read | ||||
| Frequency (Grouped Table) | Hz | Read | |||
| Active Energy Import Total (Grouped Table) | kWh | Read | |||
| Reactive Energy Import Total (Grouped Table) | kvarh | Read | |||
| Active Energy Export Total (Grouped Table) | kWh | Read | |||
| Reactive Energy Export Total (Grouped Table) | kvarh | Read | |||
| Active Power Demand (Grouped Table) | W | Read | |||
| Active Power Demand Max (Grouped Table) | W | Read | |||
| Voltage L1-L2 (Grouped Table) | V | Read | |||
| Voltage L1-N (Grouped Table) | V | Read | |||
| Current L1 (Grouped Table) | A | Read | |||
| Active Power L1 (Grouped Table) | W | Read | |||
| Apparent Power L1 (Grouped Table) | VA | Read | |||
| Reactive Power L1 (Grouped Table) | var | Read | |||
| Power Factor L1 (Grouped Table) | Read | ||||
| Voltage L2-L3 (Grouped Table) | V | Read | |||
| Voltage L2-N (Grouped Table) | V | Read | |||
| Current L2 (Grouped Table) | A | Read | |||
| Active Power L2 (Grouped Table) | W | Read | |||
| Apparent Power L2 (Grouped Table) | VA | Read | |||
| Reactive Power L2 (Grouped Table) | var | Read | |||
| Power Factor L2 (Grouped Table) | Read | ||||
| Voltage L3-L1 (Grouped Table) | V | Read | |||
| Voltage L3-N (Grouped Table) | V | Read | |||
| Current L3 (Grouped Table) | A | Read | |||
| Active Power L3 (Grouped Table) | W | Read | |||
| Apparent Power L3 (Grouped Table) | VA | Read | |||
| Reactive Power L3 (Grouped Table) | var | Read | |||
| Power Factor L3 (Grouped Table) | Read | ||||
| Active Energy Import Partial (Grouped Table) | kWh | Read | |||
| Reactive Energy Import Partial (Grouped Table) | kvarh | Read | |||
| Active Energy Import L1 (Grouped Table) | kWh | Read | |||
| Active Energy Import L2 (Grouped Table) | kWh | Read | |||
| Active Energy Import L3 (Grouped Table) | kWh | Read | |||
| Active Energy Export Partial (Grouped Table) | kWh | Read | |||
| Reactive Energy Export Partial (Grouped Table) | kvarh | Read | |||
| Apparent Energy Total (Grouped Table) | kVAh | Read | |||
| Apparent Energy Partial (Grouped Table) | kVAh | Read | |||
| Active Power Max Total (Grouped Table) | W | Read | |||
| THD Current L1 (Grouped Table) | % | Read | |||
| THD Voltage L1-N (Grouped Table) | % | Read | |||
| THD Voltage L1-L2 (Grouped Table) | % | Read | |||
| Current Demand L1 (Grouped Table) | A | Read | |||
| Current Demand Max L1 (Grouped Table) | A | Read | |||
| Current Max L1 (Grouped Table) | A | Read | |||
| Active Power Demand L1 (Grouped Table) | W | Read | |||
| Active Power Demand Max L1 (Grouped Table) | W | Read | |||
| Active Power Max L1 (Grouped Table) | W | Read | |||
| THD Current L2 (Grouped Table) | % | Read | |||
| THD Voltage L2-N (Grouped Table) | % | Read | |||
| THD Voltage L2-L3 (Grouped Table) | % | Read | |||
| Current Demand L2 (Grouped Table) | A | Read | |||
| Current Demand Max L2 (Grouped Table) | A | Read | |||
| Current Max L2 (Grouped Table) | A | Read | |||
| Active Power Demand L2 (Grouped Table) | W | Read | |||
| Active Power Demand Max L2 (Grouped Table) | W | Read | |||
| Active Power Max L2 (Grouped Table) | W | Read | |||
| THD Current L3 (Grouped Table) | % | Read | |||
| THD Voltage L3-N (Grouped Table) | % | Read | |||
| THD Voltage L3-L1 (Grouped Table) | % | Read | |||
| Current Demand L3 (Grouped Table) | A | Read | |||
| Current Demand Max L3 (Grouped Table) | A | Read | |||
| Current Max L3 (Grouped Table) | A | Read | |||
| Active Power Demand L3 (Grouped Table) | W | Read | |||
| Active Power Demand Max L3 (Grouped Table) | W | Read | |||
| Active Power Max L3 (Grouped Table) | W | Read | |||
| Digital Output Status | Read | ||||
| Alarm Status | Read | ||||
| Active Energy Import Total Wh | Wh | Read | |||
| Reactive Energy Import Total varh | varh | Read | |||
| Active Energy Import Partial Wh | Wh | Read | |||
| Reactive Energy Import Partial varh | varh | Read | |||
| Active Energy Import L1 Wh | Wh | Read | |||
| Active Energy Import L2 Wh | Wh | Read | |||
| Active Energy Import L3 Wh | Wh | Read | |||
| Active Energy Export Total Wh | Wh | Read | |||
| Active Energy Export Partial Wh | Wh | Read | |||
| Reactive Energy Export Total varh | varh | Read | |||
| Reactive Energy Export Partial varh | varh | Read | |||
| Apparent Energy Total VAh | VAh | Read | |||
| Apparent Energy Partial VAh | VAh | Read | |||
| Run Hour Meter (High Res Table) | h | Read | |||
| Run Hour Meter Export (High Res Table) | h | Read | |||
| Run Hour Meter Partial (High Res Table) | h | Read | |||
| Run Hour Meter Export Partial (High Res Table) | h | Read | |||
| Frequency High Resolution | Hz | Read | |||
| Firmware Version | Read | ||||
| Identification Code | Read | ||||
| Password | Read and write | ||||
| Measuring System | Read and write | ||||
| Current Transformer Ratio | Read and write | ||||
| Demand Integration Time | Read and write | ||||
| Pulse Output Duration | Read and write | ||||
| Alarm Enable | Read and write | ||||
| Alarm Linked Variable | Read and write | ||||
| Alarm Setpoint On | Read and write | ||||
| Alarm Setpoint Off | Read and write | ||||
| Alarm Delay | s | Read and write | |||
| Output Type | Read and write | ||||
| Output Normal Status | Read and write | ||||
| kWh per Pulse | kWh | Read and write | |||
| Wrong Connection Check Enable | Read and write | ||||
| Wrong Connection Status | Read | ||||
| Quick Setup at Next Power On | Read and write | ||||
| Check Connection at Next Power On | Read and write | ||||
| Run Hour Counter Start Current | A | Read and write | |||
| Input 1 Voltage Terminal | Read and write | ||||
| Input 2 Voltage Terminal | Read and write | ||||
| Input 3 Voltage Terminal | Read and write | ||||
| Input 1 Current Terminals | Read and write | ||||
| Input 2 Current Terminals | Read and write | ||||
| Input 3 Current Terminals | Read and write | ||||
| Input 1 Current Direction | Read and write | ||||
| Input 2 Current Direction | Read and write | ||||
| Input 3 Current Direction | Read and write | ||||
| Pages Filter Enable | Read and write | ||||
| Inactivity Time Enable | Read and write | ||||
| Screen Saver Time | s | Read and write | |||
| Home Page | Read and write | ||||
| Backlight Time | Read and write | ||||
| Page 1 Filter | Read and write | ||||
| Page 2 Filter | Read and write | ||||
| Page 3 Filter | Read and write | ||||
| Page 4 Filter | Read and write | ||||
| Page 5 Filter | Read and write | ||||
| Page 6 Filter | Read and write | ||||
| Page 7 Filter | Read and write | ||||
| Page 8 Filter | Read and write | ||||
| Page 9 Filter | Read and write | ||||
| Page 10 Filter | Read and write | ||||
| Page 11 Filter | Read and write | ||||
| Page 12 Filter | Read and write | ||||
| Page 13 Filter | Read and write | ||||
| Page 14 Filter | Read and write | ||||
| Page 15 Filter | Read and write | ||||
| Page 16 Filter | Read and write | ||||
| Page 17 Filter | Read and write | ||||
| Page 18 Filter | Read and write | ||||
| Page 19 Filter | Read and write | ||||
| Page 20 Filter | Read and write | ||||
| Page 21 Filter | Read and write | ||||
| Page 22 Filter | Read and write | ||||
| Page 23 Filter | Read and write | ||||
| Page 24 Filter | Read and write | ||||
| Page 25 Filter | Read and write | ||||
| Page 26 Filter | Read and write | ||||
| RS485 Address | Read and write | ||||
| RS485 Baud Rate | Read and write | ||||
| RS485 Parity | Read and write | ||||
| RS485 Stop Bits | Read and write | ||||
| Reset Total Energy | Write | ||||
| Reset Partial Energy | Write | ||||
| Reset Demand and Max | Write | ||||
| Factory Reset | Write | ||||
| Serial Number | Read | ||||
| Production Year | Read | ||||
| Configurable Name | Read and write | ||||
| M-Bus Secondary Address | Read | ||||
| Device State | Read |
Loading registers…
Send your device list
If a device is not in the library yet, we build the template for free as soon as we have the register data.
Use cases
- Show voltage, current and power per phase of a distribution board on a dashboard and see at once which phase carries the most load.
- Get an email when total current harmonic distortion stays above a threshold you choose, for example after new drives were installed.
- Keep a history of imported and exported energy per month for a tenant, a production line or a PV installation.
- Follow the demand maximum per phase to check whether a connection is close to its contracted capacity.
- Reset the partial energy counter or change the demand integration time remotely without opening the panel.
Installation
Connect the RS485 terminals of the WM15 to the RS485 port of the ModbusCloud Gateway (A, B and common) and terminate the last device on the line.
On the WM15 set the Modbus address, baud rate and parity, or keep the defaults: address 1, 9600 baud, no parity.
In ModbusCloud, add a Modbus device (RTU) with the same address and serial settings and import this template.
Check that the values arrive: Voltage L1-N should show the mains voltage and Frequency about 50 Hz. Check the CT ratio if currents look wrong.
Things to watch for
The WM15 does not answer. What should I check?
Check that your WM15 has the RS485 port (OS or OSPF variant); the OX variants have none. Then match address, baud rate and parity with the meter, default 1, 9600 baud, no parity. Swap A and B if nothing answers, and check the termination at both ends of the line.
Currents and powers are a factor off.
The WM15 multiplies by the CT ratio set in the meter. If the ratio does not match the current transformers, all currents, powers and energies are off by the same factor. Set the right ratio, for example 40.0 for a 200/5 A transformer. On MID variants only the front panel can change it.
Power is negative on one phase.
A negative active power or power factor means the meter sees export on that phase. On a load without generation this usually means a current transformer is fitted the wrong way round or swapped with another phase. Check the wiring, or invert the current direction of that input on non-MID variants.
Can I change settings and reset counters from ModbusCloud?
Yes, the settings and reset registers are writable once writing registers is switched on for your gateway. Reset Total Energy clears the totals and cannot be undone, so use it only when you mean to. Changing the RS485 settings breaks communication until you change them in ModbusCloud too.
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