PM1225H Energy Reset

[HamodaAdel]

Hello, I have PM1225H and i want to reset the value stored in Energy Counter (kWh Tot) using RS-485 Modbus, I'm looking for the Command Code and the register Address. Thanks in Advance

[Charles_Murison]

Hello @HamodaAdel ,

Have you looked at the replay from Ramasamy in https://community.se.com/t5/Metering-Power-Quality/PM1225H-Modbus-Registers-Table/td-p/436588 ?

regards,

Charles

[HamodaAdel]

Hello Charles, Thanks for your reply, Yes the excel sheet includes all Holding Registers but the Reset Register is not mentioned, i found it in the EasyLogic™ PM1230H / PM1225H
User manual
MFR9440402-03
02/2023

Thanks

[Ramasamy_N · Accepted solution]

Hello @HamodaAdel 

Please check in command sheet in the excel for all Modbus command (write multiple registers). 

You can perform the command 2021 for resetting the accumulated energies. Refer the attached screenshot. 

However, ION setup will be easy option to reset the energy using Modbus. 

Regards, 

Ramasamy N

[Robert_Lee]

Keep in mind that if you use the Protected Command Interface set of registers you need to provide the semaphore value read from register 5680 and likely need to release the semaphore value afterwards by writing the same semaphore value back to 5680.  You will also need to confirm that the command was successful by reading the appropriate command status registers and checking that 0 (zero) is returned for the command sent.