Issues

• Question: Is there a way to send a request like WriteHoldingRegisters but not expect a response?

  Apollo3zehn/FluentModbus#165 · Filter by author jacobq opened on Sep 16, 2026

• Add Remote Endpoint to CoilsChangedEventArgs and RegistersChangedEventArgs

  Apollo3zehn/FluentModbus#163 · Filter by author oollie34 opened on Jun 15, 2026

• Modbus tcp server/slave unable to use slaveID other than default

  Apollo3zehn/FluentModbus#154 · Filter by author smk422 opened on Nov 6, 2025
  4

• Add support for 16 KB page sizes for libraries to support Maui -> Android 15+ builds

  Apollo3zehn/FluentModbus#153 · Filter by author ghost opened on Oct 20, 2025

• ReadTimeout will not be considered when using async

  Apollo3zehn/FluentModbus#152 · Filter by author endrelovas opened on Oct 15, 2025

• Issue on the server with rejected requests and timed out requests

  Apollo3zehn/FluentModbus#149 · Filter by author Eastwo00d opened on Sep 9, 2025
  1

• Transaction Identifier not checked in ModbusTcpClient, resulting in incorrect data

  Apollo3zehn/FluentModbus#146 · Filter by author LanderV-Vintecc opened on Jun 13, 2025
  2

• Is it possible to set the high bit in front or the low bit

  Apollo3zehn/FluentModbus#143 · Filter by author TorchZhu opened on Mar 26, 2025
  1

• Can working on ModbusRtu with tcp server?

  Apollo3zehn/FluentModbus#140 · Filter by author Himmelt opened on Dec 27, 2024
  1

• ModbusTcpClient .Initialize throws Exception -> hard to catch / determine what went wrong

  v6
  Apollo3zehn/FluentModbus#139 · Filter by author JaggerJo opened on Dec 11, 2024
  2

• Exception "There is no valid request available" when any client reconnect.

  Apollo3zehn/FluentModbus#138 · Filter by author eryk955 opened on Nov 22, 2024
  5

• I need to keep a log of the original communication, can I do it?

  Apollo3zehn/FluentModbus#137 · Filter by author watking opened on Nov 22, 2024
  3

• Pass new value register value on write function codes to request validator

  v6
  Apollo3zehn/FluentModbus#133 · Filter by author AthenaAzuraeaX opened on Oct 2, 2024
  3

• Serial I/O

  v6
  Apollo3zehn/FluentModbus#129 · Filter by author SY6502 opened on Sep 14, 2024
  1

• Linux / IsConnected

  Apollo3zehn/FluentModbus#127 · Filter by author Steve0212a opened on Aug 21, 2024
  5

• Should swap bytes be an extension Method to span? One method per swap type (little, big, vax endian) ... How to handle type size?

  v6
  Apollo3zehn/FluentModbus#125 · Filter by author Apollo3zehn opened on Aug 7, 2024
  2

• [Suggestion] Client API redesign.

  v6
  Apollo3zehn/FluentModbus#124 · Filter by author iamalexcater opened on Jul 22, 2024
  1

• MBAP header is read without regard to host endianness.

  v6
  Apollo3zehn/FluentModbus#123 · Filter by author iamalexcater opened on Jul 18, 2024

• SwitchEndianness causes unexpected side effect.

  v6
  Apollo3zehn/FluentModbus#122 · Filter by author iamalexcater opened on Jul 18, 2024
  4

• Why is the only call to ModbusUtils.DetectRequestFrame() skipping the unit identifier check (0 (broadcast) or actual identifier)?

  Apollo3zehn/FluentModbus#112 · Filter by author Apollo3zehn opened on Feb 20, 2024

• Broadcast support for ModbusTcpClient and ModbusTcpClientAsync

  Apollo3zehn/FluentModbus#107 · Filter by author mile-bkoos opened on Feb 1, 2024

• ModbusRTUclient ReadHoldingRegister error System.TimeoutException: 'The operation has timed out.'

  Apollo3zehn/FluentModbus#106 · Filter by author bobfri opened on Jan 19, 2024
  2

• ReadHoldingRegistersAsync() does not work properly

  Apollo3zehn/FluentModbus#104 · Filter by author MichaelHoffmeisterFesto opened on Jan 8, 2024
  1

• Modify functionality of any single unit special case

  Apollo3zehn/FluentModbus#97 · Filter by author ChrisProto opened on Sep 7, 2023

• Alignment issues in ARM

  Apollo3zehn/FluentModbus#92 · Filter by author Apollo3zehn opened on May 20, 2023