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pymodbus-dev/pymodbus
client.close does not close the connection

pymodbus verison is 3.8.6 I go through the database and get the addresses and the ip of the modbus devices and establish the connection. after the wet is saved in the DB, the connection should actually ...
  • paranoid64
  • 7
  • Opened 
    3 days ago
  • #2617

pymodbus-dev/pymodbus
convert_from_registers byteorder

Hi I am facing some issues with the new method for converting registers to float. The documention for the device i am communicating with says the word order and byte order is in the little endian format. ...
  • lorithai
  • 1
  • Opened 
    4 days ago
  • #2616

pymodbus-dev/pymodbus
The `execute()` method's return type hint doesn't include `ExceptionResponse`

This is important for auto-completion and self-discovery of available attributes. It also results in false errors/warnings when referencing ExceptionResponse common attributes, such as exception_code. ...
  • david-drinn
  • 3
  • Opened 
    9 days ago
  • #2614

pymodbus-dev/pymodbus
Read too many holding registers does not result in correct Exception Code

A ReadHoldingRegistersRequest of more than the allowed 125 registers does not result in an Exception Response 0x03 (Illegal value). The encode() method of ReadHoldingRegistersRequest calls the ModbusPDU.validateCount(), ...
  • MuellerDaniel
  • 2
  • Opened 
    11 days ago
  • #2613

pymodbus-dev/pymodbus
Passing in a `device_id` to `read_holding_registers` causes error `got an unexpected keyword argument 'device_id'`

I m using version 3.8.6 from pip and talking to an EW11 modbus TCP adapter. According to the docs I can pass in a device_id. However, when I do this I get the error: TypeError: ModbusClientMixin.read_holding_registers() ...
  • 8none1
  • 4
  • Opened 
    13 days ago
  • #2609

pymodbus-dev/pymodbus
serial_forwarder broken after updating to 3.8

To connect my Home Assistant to my Heat Recovery unit in the attic, I ve been running the serial forwarder on a Raspberry Pi for over a year now. See code at https://github.com/rhpijnacker/homeassistant-addon-pymodbus-serial_to_tcp_forwarder. ...
  • rhpijnacker
  • 4
  • Opened 
    14 days ago
  • #2608

pymodbus-dev/pymodbus
No support for RTU over TCP?

Did support for the FramerType.RTU_OVER_TCP get dropped? The documentation still says support all standard frames: socket, rtu, rtu-over-tcp, tcp and ascii , but the only options in the FramerType class ...
  • silvioporto
  • 4
  • Opened 
    14 days ago
  • #2607

pymodbus-dev/pymodbus
async serial crc check may hang

ubuntu 20.4 on arm, python3.9, pymodbus 3.8.2 got stuck into CRC calculation (pymodbus/framer/rtu.py)? 100% CPU, everything frozen. happens daily under heavy load. (venv_pymodbus3) root@K20kyte:~/pyapp# ...
  • dcneeme
  • 6
  • Opened 
    16 days ago
  • #2606

pymodbus-dev/pymodbus
Documentation font is not consistent

Some bullet points have upper case letter and some have lower case letter.
  • zaid13
  • 3
  • Opened 
    17 days ago
  • #2604

pymodbus-dev/pymodbus
Difficulties migrating from 3.5.2 to 3.8.6: is_active() is_closing() reset_frame()

Dear pymodbus community, Please, please take this comment constructively. My aim is not to underestimate the great job the developers are putting in this library. And I assume that the comments I am about ...
  • bsense-rius
  • 6
  • Opened 
    19 days ago
  • #2602
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