Support Modbus/TCP in the Wi-Fi energy meter of IAMMETER
Support Modbus/TCP in the Wi-Fi energy meter of IAMMETER
Modbus TCP is common protocol that used in industrial system such as ICS, DCS, SCADA. After the latest firmware upgrading, the energy meter of IAMMETER had supported the modbus tcp protocol now.
This is a big upgrade of the Wi-Fi energy meter`s firmware .
Both WEM3080T(3 phase energy meter ,Wi-Fi) and WEM3080 (single phase energy meter, Wi-Fi) will support Modbus/TCP protocol. It will make the Wi-Fi energy meter easier to be integrated into the industrial system(Such as ICS, DSC, SCADA etc ..).
Video:Integrate a three-phase energy meter into Home assistant by Modbus TCP (over Wi-Fi)
Video:Request the data of 3 phase energy meter(Wi-Fi) from the Modbus TCP
Download the firmware and use the modbus/tcp function in IAMMETER energy meter
Register mapping
| index | Register address(Dec) | Register address(Hex) | register length | Description |
|---|---|---|---|---|
| 1 | 0 | 0000 | 1 | Phase A voltage,unsigned,value=data/100,unit: V |
| 2 | 1 | 0001 | 1 | Phase A current,unsigned,value=data/100,unit: A |
| 3 | 2 | 0002 | 2 | Phase A active power,signed,value=data,unit: W |
| 4 | 4 | 0004 | 2 | Phase A forward energy in pulses ,unsigned, kWh=pulses/800, unit:kWh |
| 5 | 6 | 0006 | 2 | Phase A reverse energy in pulses ,unsigned, kWh=pulses/800, unit:kWh |
| 6 | 8 | 0008 | 1 | Phase A power factor,unsigned,value=data/1000 |
| 7 | 9 | 0009 | 1 | PadA 0x00,not used |
| 8 | 10 | 000A | 1 | Phase B voltage,unsigned,value=data/100,unit: V |
| 9 | 11 | 000B | 1 | Phase B current,unsigned,value=data/100,unit: A |
| 10 | 12 | 000C | 2 | Phase B active power,signed,value=data,unit: W |
| 11 | 14 | 000E | 2 | Phase B forward energy in pulses ,unsigned, kWh=pulses/800, unit:kWh |
| 12 | 16 | 0010 | 2 | Phase B reverse energy in pulses ,unsigned, kWh=pulses/800, unit:kWh |
| 13 | 18 | 0012 | 1 | Phase B power factor,unsigned,value=data/1000 |
| 14 | 19 | 0013 | 1 | PadB 0x00,not used |
| 15 | 20 | 0014 | 1 | Phase C voltage,unsigned,value=data/100,unit: V |
| 16 | 21 | 0015 | 1 | Phase C current,unsigned,value=data/100,unit: A |
| 17 | 22 | 0016 | 2 | Phase C active power,signed,value=data,unit: W |
| 18 | 24 | 0018 | 2 | Phase C forward energy in pulses ,unsigned, kWh=pulses/800, unit:kWh |
| 19 | 26 | 001A | 2 | Phase C reverse energy in pulses ,unsigned, kWh=pulses/800, unit:kWh |
| 20 | 28 | 001C | 1 | Phase C power factor,unsigned,value=data/1000 |
| 21 | 29 | 001D | 1 | PadC 0x00,not used |
| 22 | 30 | 001E | 1 | frequency, unsigned,value=data/100,unit:Hz |
| 23 | 31 | 001F | 1 | padH 0x00,not used |
| 24 | 32 | 0020 | 2 | sum of power，signed，value=data，unit:W |
| 25 | 34 | 0022 | 2 | sum of forward energy in pulses ,unsigned, kWh=pulses/800, unit:kWh |
| 26 | 36 | 0024 | 2 | sum of reverse energy in pulses ,unsigned, kWh=pulses/800, unit:kWh |
Test the modbus tcp function by modbus poll
How to get the latest firmware that support Modbus/TCP
Upgrading Precondition: Check your current firmware version, if it is >= 75.68, it means you can upgrade the firmware directly to support the Modbus TCP function.
We have planned to provide some free upgrades to our old customers who have such requirements, if you want to use the Modbus TCP function and your firmware version also meets the requirements, please contact us from our feedback system. About how to use our feedback system, please refer to https://www.iammeter.com/docs/feedback-and-notification
Please also help us to introduce how to use the Modbus TCP energy meter in your system.
We will pay more attention to the customers who give us a clear introduction about why they need to use Modbus TCP energy meter in their application.
Highlight features of the 3 phase energy meter
Monitor the solar pv system with Home Assistant and 3 phase energy meter
Integrate IAMMETER energy meter to third-party platform
Monitor your solar pv system in IAMMETER cloud
Monitor your electricity usage in IAMMETER-cloud
