API changes
Versions (X.Y.Z) where Z > 0 e.g. 3.0.1 do NOT have API changes!
API changes 3.6.0
framer= is an enum: pymodbus.Framer, but still accept a framer class
API changes 3.5.0
Remove handler parameter from ModbusUdpServer
Remove loop parameter from ModbusSerialServer
Remove handler and allow_reuse_port from repl default config
Static classes from the
constants
module are now inheriting fromenum.Enum
and using UPPER_CASE naming scheme, this affects: -MoreData
-DeviceInformation
-ModbusPlusOperation
-Endian
-ModbusStatus
Async clients now accepts no_resend_on_retry=True, to not resend the request when retrying.
ModbusSerialServer now accepts request_tracer=.
API changes 3.4.0
Modbus<x>Client .connect() returns True/False (connected or not)
Modbue<x>Server handler=, allow_reuse_addr=, backlog= are no longer accepted
ModbusTcpClient / AsyncModbusTcpClient no longer support unix path
StartAsyncUnixServer / ModbusUnixServer removed (never worked on Windows)
ModbusTlsServer reqclicert= is no longer accepted
ModbusSerialServer auto_connect= is no longer accepted
ModbusSimulatorServer.serve_forever(only_start=False) added to allow return
API changes 3.3.0
ModbusTcpDiagClient is removed due to lack of support
Clients have an optional parameter: on_reconnect_callback, Function that will be called just before a reconnection attempt.
general parameter unit= -> slave=
move SqlSlaveContext, RedisSlaveContext to examples/contrib (due to lack of maintenance)
BinaryPayloadBuilder.to_string
was renamed toBinaryPayloadBuilder.encode
on_reconnect_callback for async clients works slightly different
utilities/unpack_bitstring now expects an argument named data not string
API changes 3.2.0
helper to convert values in mixin: convert_from_registers, convert_to_registers
import pymodbus.version -> from pymodbus import __version__, __version_full__
pymodbus.pymodbus_apply_logging_config(log_file_name=”pymodbus.log”) to enable file pymodbus_apply_logging_config
pymodbus.pymodbus_apply_logging_config have default DEBUG, it not called root settings will be used.
pymodbus/interfaces/IModbusDecoder removed.
pymodbus/interfaces/IModbusFramer removed.
pymodbus/interfaces/IModbusSlaveContext -> pymodbus/datastore/ModbusBaseSlaveContext.
StartAsync<type>Server, removed defer_start argument, return is None. instead of using defer_start instantiate the Modbus<type>Server directly.
ReturnSlaveNoReponseCountResponse has been corrected to ReturnSlaveNoResponseCountResponse
Option –modbus-config for REPL server renamed to –modbus-config-path
client.protocol.<something> –> client.<something>
client.factory.<something> –> client.<something>
API changes 3.1.0
Added –host to client_* examples, to allow easier use.
unit= in client calls are no longer converted to slave=, but raises a runtime exception.
Added missing client calls (all standard request are not available as methods).
client.mask_write_register() changed parameters.
server classes no longer accept reuse_port= (the socket do not accept it)
API changes 3.0.0
Base for recording changes.