pymodbus-codesys

import time
import struct
from pymodbus.client.sync import ModbusTcpClient

Float = struct.Struct("<f")


def float2word(value):
    data = Float.pack(value)
    return data[0] | data[1] << 8, data[2] | data[3] << 8


with ModbusTcpClient("192.168.82.15") as client:
    for i in range(0, 200):
        client.write_registers(0, float2word(i / 200 * 100))