initialization fails with custom port: FRAMER_NAME_TO_CLASS[framer] ->KeyError: THE_CUSTOM_PORT_NUMBER

[tpd-opitz]

Versions

• Python: 3.10.12
• OS: Ubuntu 22.04.5 LTS
• Pymodbus: pymodbus-3.7.4
• Modbus Hardware (if used):

Pymodbus Specific

• Server: not applicapable
• Client: tcp- sync

Description

initialization of client fails when using custom port, works when no port given

Code and Logs

code

# code and logs here.

# please use the following to format logs when posting them here
import pymodbus

from pymodbus.client import ModbusTcpClient

pymodbus.pymodbus_apply_logging_config("DEBUG")

def no_port(ip_address):
    client = ModbusTcpClient(ip_address)

def custom_port(ip_address, port=1502):
    client = ModbusTcpClient(ip_address, port)
        

# Usage
ip_address = "0.0.0.0"  # any
print('call no_port')
no_port(ip_address)
print('successs', end= '\n\n\n')
print('call custom_port')
custom_port(ip_address)

log

$ python3 ./kostalWkModbus.py 
call no_port
successs


call custom_port
Traceback (most recent call last):
  File "/home/thomas/Dokumente/Haus/E-Auto/OWB/erweiterung/python/./kostalWkModbus.py", line 20, in <module>
    custom_port(ip_address)
  File "/home/thomas/Dokumente/Haus/E-Auto/OWB/erweiterung/python/./kostalWkModbus.py", line 11, in custom_port
    client = ModbusTcpClient(ip_address, port)
  File "/home/thomas/.local/lib/python3.10/site-packages/pymodbus/client/tcp.py", line 151, in __init__
    super().__init__(framer, retries)
  File "/home/thomas/.local/lib/python3.10/site-packages/pymodbus/client/base.py", line 191, in __init__
    self.framer: FramerBase = (FRAMER_NAME_TO_CLASS[framer])(DecodePDU(False))
KeyError: 1502

[janiversen]

Please look at the documentation, your call does not conform with the API.

[janiversen]

At the very least look at the call signature, then you will see your parameters are incorrect.