Unable to read Datablock information with client.get_block_info()

[tom-schulte-wpk]

Hi,
I am trying to use the function get_block_info() of the class client. However I am getting following error message:

File "C:\Users\thomas.schulte\Anaconda3\lib\site-packages\snap7\common.py", line 92, in check_error
raise Snap7Exception(error)

Snap7Exception: b'CPU : Function not available'

I wanted to get Information of the DB without knowing the number of variables and their length especially, because somehow it could be possible that someone changes the layout of the DB.

My hardware config is a Siemens IPC 427E 3xPN/IE with a soft-SPS (1507 S).

Could there be a problem with the usage of this part of the function in combination with a 1500 CPU
result = self._library.Cli_GetAgBlockInfo(self._pointer, blocktype_, db_number, byref(data)) check_error(result, context="client")

My example code is:
``
import sys
import time
import pandas as pd
import numpy as np
import datetime

import snap7
from snap7.types import *
from snap7.util import *
from snap7 import types,util
from snap7.util import get_bool,get_int
import ctypes
from snap7.types import TS7BlockInfo
from snap7.exceptions import Snap7Exception
import logging
from ctypes import c_int, c_char_p, byref, sizeof, c_uint16, c_int32, c_byte, c_ulong, Array
from snap7.common import check_error, load_library, ipv4
from snap7.util import *

client = snap7.client.Client()

ip_adress = "192.167.10.1"
rack = 0
slot = 1
tcp_port = 4840

client.connect(ip_adress,rack,slot)

db_number = 41

test = client.get_block_info("DB",41)``

The DB layout is shown in the attached image.

I hope someone has a hint or advice for me

for me. Otherwise I have to use some kind of work around with a defined db layout with some sort of code from this site -> https://gist.github.com/remceTkedaR/db9bc5218aedb900900f7e4f719a91a6#file-s7-1200_client_snap7-py