Can you explain why you are switching nodes?: because it throws me error 2, which indicates that there is an error in the requested function or the slave device is incompatible with said function (16). If I am wrong I would appreciate information.
Did the write not work on the original node when you changed the address?: no it didn’t work but this time as i reported earlier it says it doesn’t support feature 16
Did you get the error 2 after changing the address or was this before changing the address?: after changing address.
Does the device you are communicating with allow you to write to that register?: yes, it is a write register, try with register 5 and 7, but it doesn’t work either.