Issues

• Clarification on Master.execute(threadsafe=False) - when is it safe to bypass the global RLock?

  ljean/modbus-tk#195 · Filter by author tiaanvow opened on May 7, 2026
  4

• Improving Examples and Introducing a Wiki for New Users

  ljean/modbus-tk#191 · Filter by author jacksonmatheson opened on Sep 26, 2024

• Submit a new version

  ljean/modbus-tk#190 · Filter by author HantaoGG opened on Mar 16, 2024

• Poor quality of communications

  ljean/modbus-tk#188 · Filter by author SoUtHeaST41 opened on Mar 5, 2024

• API docs

  ljean/modbus-tk#187 · Filter by author MauroDiamantino opened on Dec 27, 2023
  2

• the float value is moved forward by one register

  ljean/modbus-tk#186 · Filter by author vlastikcocek opened on Sep 6, 2023

• modbus sever IP

  ljean/modbus-tk#184 · Filter by author Huoyubai114 opened on Aug 1, 2023
  1

• modbus_tk.exceptions.ModbusInvalidResponseError: Invalid CRC in response

  ljean/modbus-tk#183 · Filter by author zhuyujie1993 opened on May 4, 2023

• ModbusInvalidResponseError: Invalid CRC in response

  ljean/modbus-tk#180 · Filter by author dujc opened on Mar 17, 2023
  2

• how to use the utils.calculate_crc()

  ljean/modbus-tk#177 · Filter by author huanhuangongzi opened on Dec 18, 2022
  1

• When "data_format='f'",Invalid CRC in response

  ljean/modbus-tk#176 · Filter by author waCoding opened on Nov 21, 2022
  7

• Project dependencies may have API risk issues

  ljean/modbus-tk#174 · Filter by author PyDR-Tool opened on Oct 26, 2022
  1

• simulator.py/RpcHandler() needs encode/decode to work these days

  ljean/modbus-tk#173 · Filter by author kiml opened on Sep 20, 2022
  1

• RTU Server periodically only interprets the first byte of a request.

  ljean/modbus-tk#171 · Filter by author Doobanoomy opened on Sep 9, 2022

• Response address xxx is different from request address 33

  ljean/modbus-tk#168 · Filter by author Syavash-kazemi opened on Jul 8, 2022

• Transmitting a modbus tcp broadcast message halts other communication for 200-300 ms

  ljean/modbus-tk#167 · Filter by author vanDrunen opened on May 25, 2022

• Raising ModbusException in modbus.Slave.handle_request doesn't work

  ljean/modbus-tk#166 · Filter by author ErikTempelaarVO opened on May 11, 2022

• The global lock can be replaced by self.lock in Master.execute

  ljean/modbus-tk#165 · Filter by author sazima opened on Apr 9, 2022

• only 7 bytes are emitted by hooks while new data received

  ljean/modbus-tk#164 · Filter by author tian-jie opened on Mar 17, 2022
  1

• Echo discart in slave

  ljean/modbus-tk#163 · Filter by author Vlad1332 opened on Feb 28, 2022

• Issue installing modbus-tk pip package for Python 3.10

  ljean/modbus-tk#162 · Filter by author nsk126 opened on Feb 25, 2022
  1

• Default block unit length is two bytes why?

  ljean/modbus-tk#154 · Filter by author hxmwr opened on Jul 19, 2021
  1

• Is friendly_name declaration missing?

  ljean/modbus-tk#153 · Filter by author hxmwr opened on Jul 5, 2021

• Error while flushing the socket: argument must be an int, or have a fileno() method after executing master._do_close() method-Modbus_tk

  ljean/modbus-tk#150 · Filter by author ShyamBhattacharyya opened on May 22, 2021
  2

• Inconsistency of reading addresses of holding registers base-1 vs base-0

  ljean/modbus-tk#147 · Filter by author an3l opened on Apr 24, 2021