I'm using a CJ2M CPU33. I used the same python library with success. Here is a sample of code i used to put results in excel.
import time
import fins.udp
fins_instance = fins.udp.UDPFinsConnection()
fins_instance.connect('192.168.0.14')
fins_instance.dest_node_add=14
fins_instance.srce_node_add=249
for i in range(1):
mem_area = fins_instance.memory_area_read(fins.FinsPLCMemoryAreas().DATA_MEMORY_WORD,b'\x00\x64\x00')
time.sleep(1)
mem_area = int.from_bytes(mem_area,'big')
mem_area = bin(mem_area)
print(mem_area)
from openpyxl import load_workbook
wb = load_workbook(filename = 'bin2hex.xlsm',keep_vba=True)
ws1 = wb.active
ws1['H1'] = mem_area
wb.save('bin2hex.xlsm')