PyModbus 1.5.0

• Improve transaction speeds for sync clients (RTU/ASCII), now retry on empty happens only when retry_on_empty kwarg is passed to client during intialization

client = Client(..., retry_on_empty=True)

• Fix tcp servers (sync/async) not processing requests with transaction id > 255
• Introduce new api to check if the received response is an error or not (response.isError())
• Move timing logic to framers so that irrespective of client, correct timing logics are followed.
• Move framers from transaction.py to respective modules
• Fix modbus payload builder and decoder
• Async servers can now have an option to defer reactor.run() when using Start<Tcp/Serial/Udo>Server(...,defer_reactor_run=True)
• Fix UDP client issue while handling MEI messages (ReadDeviceInformationRequest)
• Add expected response lengths for WriteMultipleCoilRequest and WriteMultipleRegisterRequest
• Fix _rtu_byte_count_pos for GetCommEventLogResponse
• Add support for repeated MEI device information Object IDs
• Fix struct errors while decoding stray response
• Modbus read retries works only when empty/no message is received
• Change test runner from nosetest to pytest
• Fix Misc examples

v1.5.0.rc3

• Improve transaction speeds for sync clients (RTU/ASCII), now retry on empty happens only when retry_on_empty kwarg is passed to client during intialization

client = Client(..., retry_on_empty=True)

• Fix tcp servers (sync/async) not processing requests with transaction id > 255
• Introduce new api to check if the received response is an error or not (response.isError())
• Move timing logic to framers so that irrespective of client, correct timing logics are followed.
• Move framers from transaction.py to respective modules
• Fix modbus payload builder and decoder
• Async servers can now have an option to defer reactor.run() when using Start<Tcp/Serial/Udo>Server(...,defer_reactor_run=True)
• Fix UDP client issue while handling MEI messages (ReadDeviceInformationRequest)
• Add expected response lengths for WriteMultipleCoilRequest and WriteMultipleRegisterRequest
• Fix _rtu_byte_count_pos for GetCommEventLogResponse
• Add support for repeated MEI device information Object IDs
• Fix struct errors while decoding stray response
• Modbus read retries works only when empty/no message is received
• Change test runner from nosetest to pytest
• Fix Misc examples

Pymodbus v1.5.0rc2

• Improve transaction speeds for sync clients (RTU/ASCII), now retry on empty happens only when retry_on_empty kwarg is passed to client during intialization

client = Client(..., retry_on_empty=True)

• Fix tcp servers (sync/async) not processing requests with transaction id > 255
• Introduce new api to check if the received response is an error or not (response.isError())
• Move timing logic to framers so that irrespective of client, correct timing logics are followed.
• Move framers from transaction.py to respective modules
• Fix modbus payload builder and decoder
• Async servers can now have an option to defer reactor.run() when using Start<Tcp/Serial/Udo>Server(...,defer_reactor_run=True)
• Fix UDP client issue while handling MEI messages (ReadDeviceInformationRequest)
• Add expected response lengths for WriteMultipleCoilRequest and WriteMultipleRegisterRequest
• Fix struct errors while decoding stray response
• Change test runner from nosetest to pytest
• Fix Misc examples

Pymodbus 1.5.0 Pre release

• Improve transaction speeds for sync clients (RTU/ASCII), now retry on empty happens only when retry_on_empty kwarg is passed to client during intialization
  client = Client(..., retry_on_empty=True)

• Fix tcp servers (sync/async) not processing requests with transaction id > 255

• Introduce new api to check if the received response is an error or not (response.isError())

• Move timing logic to framers so that irrespective of client, correct timing logics are followed.

• Move framers from transaction.py to respective modules

• Fix modbus payload builder and decoder

• Async servers can now have an option to defer reactor.run() when using Start<Tcp/Serial/Udo>Server(...,defer_reactor_run=True)

• Fix UDP client issue while handling MEI messages (ReadDeviceInformationRequest)

• Fix Misc examples

• Source dist (tar.gz) is now available in PyPI as well.

v1.4.0

• Bug fix Modbus TCP client reading incomplete data
• Check for slave unit id before processing the request for serial clients
• Bug fix serial servers with Modbus Binary Framer
• Bug fix header size for ModbusBinaryFramer
• Bug fix payload decoder with endian Little
• Payload builder and decoder can now deal with the wordorder as well of 32/64 bit data.
• Support Database slave contexts (SqlStore and RedisStore)
• Custom handlers could be passed to Modbus TCP servers
• Asynchronous Server could now be stopped when running on a seperate thread (StopServer)
• Signal handlers on Asyncronous servers are now handled based on current thread
• Registers in Database datastore could now be read from remote clients
• Fix examples in contrib (message_parser.py/message_generator.py/remote_server_context)
• Add new example for SqlStore and RedisStore (db store slave context)
• Fix minor comaptibility issues with utilities.
• Update test requirements
• Update/Add new unit tests
• Move twisted requirements to extra so that it is not installed by default on pymodbus installtion

v1.4.0rc3

• Bug fix payload decoder with endian Little

1.4.0.rc2

• Bug fix Modbus TCP client reading incomplete data
• Check for slave unit id before processing the request for serial clients
• Bug fix serial servers with Modbus Binary Framer
• Bug fix header size for ModbusBinaryFramer
• Support Database slave contexts (SqlStore and RedisStore)
• Custom handlers could be passed to Modbus TCP servers
• Asynchronous Server could now be stopped when running on a seperate thread (StopServer)
• Signal handlers on Asyncronous servers are now handled based on current thread
• Registers in Database datastore could now be read from remote clients
• Fix examples in contrib (message_parser.py/message_generator.py/remote_server_context)
• Add new example for SqlStore and RedisStore (db store slave context)
• Fix minor comaptibility issues with utilities.
• Update test requirements
• Update/Add new unit tests
• Move twisted requirements to extra so that it is not installed by default on pymodbus installtion

1.4.0rc1

v1.4.0.rc1

Remove unwanted files and folders from doc folder

Pymodbus V1.3.2

• ModbusSerialServer could now be stopped when running on a seperate thread.
• Fix issue with server and client where in the frame buffer had values from previous unsuccesful transaction
• Fix response length calculation for ModbusASCII protocol
• Fix response length calculation ReportSlaveIdResponse, DiagnosticStatusResponse
• Fix never ending transaction case when response is recieved without header and CRC
• Fix tests

Pymodbus v1.3.2 RC1

• ModbusSerialServer could now be stopped when running on a seperate thread.
• Fix issue with server and client where in the frame buffer had values from previous unsuccesful transaction
• Fix response length calculation for ModbusASCII protocol
• Fix response length calculation ReportSlaveIdResponse, DiagnosticStatusResponse
• Fix never ending transaction case when response is recieved without header and CRC
• Fix tests