how to modify inverter S/N on max series inverter
Sometimes , chaotic Max Inverter S/N may be displayed on server or Shinephone or Shinemaster, you can try to reset it.
Method 1
You can modify MAX inverter S/N via Shinebus
a. Commissioning Tool
1. Download Shinebus
2. USB-485 or USB-232-485
b. Connect USB-485 or USB-232-485 tool into MAX inverter 485 port
c. Set inverter S/N via Shinebus
1. confirm com port on your OS ( You need to connect 485 TOOL Into inverter beforehand so that your OS can detect it )
You can read the procedures about how to confirm com port on device manager on the link
https://www.lifewire.com/how-to-open-device-manager-2626075
2. open Shinebus and Type correct parameters
1) Com port
You can find it on device manager
2) Baudrate
Default value is 9600
3) Address
Default address 0, you had better confirm com address on inverter. Sometimes default address can’t work.
4) Period
Default value is 1000 ( it means 1000ms )
5) Select Corresponding Inverter Model
6) Click Start, And Confirm If You Can Read Inverter Data
7) Select Settings and type correct inverter Sn, then click “Set”
Method 2
You can set MAX inverter S/N remotely via
https://server.growatt.com/login
a. Access end user account . Please note that it is not installer or distributor account
b. Find “Inverter Settings” on the bottom on Dashboard
c. Select “Advanced“
d. Type password: growatt+today’s date like growatt20230111
e. Caculate dec Value on register address: 23, 24, 25, 26, 27 that are related with inverter S/N
You need to convert inverter SN ( ASCII Code ) like QTG6B13013 into HEX value, then convert HEX value into DEC vaule
procedures:
1) Distribute inverter sn into all register address seperately in sequence
Example:
23 QT
24 G6
25 B1
26 30
27 13
2) Search HEX Value of every letter based on ASCII form below
Example:
23 5154 ( QT is ASCII code, you can find them in form above, then find hex value )
24 4736 ( G6 is ASCII code, you can find them in form above, then find hex value )
25 4231 ( B1 is ASCII Code, you can find them in form above, then find hex value )
26 3330( 30 is ASCII code, you can find them in form above, then find hex value )
27 3133( 13 is ASCII code, you can find them in form above, then find hex value )
3) caculate DEC value via caculator on your os
a. type “calc” on “search” bar on the bottom on OS
b. open caculator
c. Convert Hex value into DEC value
Example:
23 20820 ( Dec of HEX 5154 is 20820 )
24 20820 ( Dec of HEX 4736 is 20820 )
25 16945 ( Dec of HEX 4231 is 16945 )
26 13104 ( Dec of HEX 3330 is 13104 )
27 12595 ( Dec of HEX 3133 is 12595 )
f. set dec values on 23-27 register address seperately
G. Check inverter SN on the server system and confirm if it has been corrected.
Method 3
You can set it via USB-WIFI
Here attached the post about USB-WIFI and Shinetools
a. Plug uSB wifi into USB port on MAX inverter
b. Download Shinetools app into your mobilephone
c. find USB-WIFI S/N in your WIFI list on mobilephone and connect it.
d. Open ShineTools and access it via O&m user option
You must use your distributor or installer account, or you can’t use Advanced option on Shinetools
E. Choose “advanced”
F. Set register value ( 23-27 register address ) based on Method2
Command Type : 06 means write value into inverter, 03 means read value on register address
