2.1.3-rc20.dev45

Fixed

• uart_id can be specified during init of ModbusRTU and Serial class and is no longer hardcoded to 1, but set as 1 by default to ensure backwards compability, see #7 and #43
• RTU Client example and USAGE documentation updated with new uart_id parameter

2.1.2

Changed

• Baudrate specific inter frame time is used at Modbus RTU internal function _uart_read of serial.py instead of constant value of 5ms

Fixed

• ESP32 port specific wait_tx_done function replaced by generic wait time calculation in _send function of serial.py, see #34
• A 1ms delay has been added between turning the RS485 control pin on and sending the Modbus PDU in _send function of serial.py

2.1.2-rc19.dev42

Changed

• Baudrate specific inter frame time is used at Modbus RTU internal function _uart_read of serial.py instead of constant value of 5ms

Fixed

• ESP32 port specific wait_tx_done function replaced by generic wait time calculation in _send function of serial.py, see #34
• A 1ms delay has been added between turning the RS485 control pin on and sending the Modbus PDU in _send function of serial.py

2.1.2-rc18.dev42

Changed

• Baudrate specific inter frame time is used at Modbus RTU internal function _uart_read of serial.py instead of constant value of 5ms

Fixed

• ESP32 port specific wait_tx_done function replaced by generic wait time calculation in _send function of serial.py, see #34
• A 1ms delay has been added between turning the RS485 control pin on and sending the Modbus PDU in _send function of serial.py

2.1.1

Fixed

• Removed unnecessary dependency to micropython-urequests from Docker files, setup guide and package setup file
• Enable Modbus Client mode for RTU implementation, see #40, removed during #33

2.1.1-rc17.dev41

Fixed

• Removed unnecessary dependency to micropython-urequests from Docker files, setup guide and package setup file
• Enable Modbus Client mode for RTU implementation, see #40, removed during #33

2.1.0

Added

• Typing hints available for all functions of umodbus, see #27
• Docstrings available for all constants, functions and classes of umodbus, see #27
• Test for reading more than 8 coils in a row to verify fix of #36
• Test for reading single negative holding register value
• Test for writing multiple coils to verify fix of #22
• Test for writing multiple registers to verify fix of #23
• Usage documentation for coil, discrete inputs, holding register and input register usage
• Modbus TCP IP and port binding can be checked with is_bound property in tcp.py

Changed

• Reordered modules of API documentation
• data_as_registers and data_as_bits of common.py removed
• Send illegal function code 0x01 if a register other than coil or holding register is requested to be set
• Simplified _process_write_access logic of tcp.py

Fixed

• Typing hints of function input parameters and return values
• Response data of multiple changed registers (write_multiple_registers) is validated with respect to the provided signed flag in serial.py and tcp.py, see #23
• Enable reading more than 8 coils in a row, see #36
• Writing multiple coils in TCP, see #22
• Writing multiple registers in TCP, see #23
• Unit test test_bytes_to_bool uses MSB and LSB data correctly
• Only requested amount of registers are returned by _process_read_access logic of tcp.py, see #35

2.1.0-rc15.dev39

Added

• Typing hints available for all functions of umodbus, see #27
• Docstrings available for all constants, functions and classes of umodbus, see #27
• Test for reading more than 8 coils in a row to verify fix of #36
• Test for reading single negative holding register value
• Test for writing multiple coils to verify fix of #22
• Test for writing multiple registers to verify fix of #23
• Usage documentation for coil, discrete inputs, holding register and input register usage
• Modbus TCP IP and port binding can be checked with is_bound property in tcp.py

Changed

• Reordered modules of API documentation
• data_as_registers and data_as_bits of common.py removed
• Send illegal function code 0x01 if a register other than coil or holding register is requested to be set
• Simplified _process_write_access logic of tcp.py

Fixed

• Typing hints of function input parameters and return values
• Response data of multiple changed registers (write_multiple_registers) is validated with respect to the provided signed flag in serial.py and tcp.py, see #23
• Enable reading more than 8 coils in a row, see #36
• Writing multiple coils in TCP, see #22
• Writing multiple registers in TCP, see #23
• Unit test test_bytes_to_bool uses MSB and LSB data correctly

2.1.0-rc14.dev39

Added

• Typing hints available for all functions of umodbus, see #27
• Docstrings available for all constants, functions and classes of umodbus, see #27
• Test for reading more than 8 coils in a row to verify fix of #36
• Test for reading single negative holding register value
• Test for writing multiple coils to verify fix of #22
• Test for writing multiple registers to verify fix of #23
• Usage documentation for coil, discrete inputs, holding register and input register usage
• Modbus TCP IP and port binding can be checked with is_bound property in tcp.py

Changed

• Reordered modules of API documentation
• data_as_registers and data_as_bits of common.py removed
• Send illegal function code 0x01 if a register other than coil or holding register is requested to be set
• Simplified _process_write_access logic of tcp.py

Fixed

• Typing hints of function input parameters and return values
• Response data of multiple changed registers (write_multiple_registers) is validated with respect to the provided signed flag in serial.py and tcp.py, see #23
• Enable reading more than 8 coils in a row, see #36
• Writing multiple coils in TCP, see #22
• Writing multiple registers in TCP, see #23
• Unit test test_bytes_to_bool uses MSB and LSB data correctly

2.0.0

Added

• Perform MicroPython based unittests on every Test workflow run
• Add usage description of docker based MicroPython unittest framework in USAGE
• Add docker compose file based in MicroPython 1.18 image
• Add TCP client Dockerfile, TCP host Dockerfile, unittest Dockerfile and TCP unittest specific Dockerfile. All based on MicroPython 1.18 image
• Add initial test, testing the unittest itself
• Add unittest implementation based on pfalcon's micropython-unittest
• Docstrings available for all functions of functions.py, see #27
• Typing hints available for all functions of functions.py, serial.py and tcp.py, see #27
• Unittest for functions.py, see #16
• Unittest for const.py, see #16
• .readthedocs.yaml for Read The Docs, contributes to #26

Changed

• Use default values for all registers defined in the example JSON
• TCP host example and TCP client example define a static IP address and skip further WiFi setup steps in case a Docker usage is detected by a failing import of the network module, contributes to #16
• Define all Modbus function codes as const() to avoid external modifications, contributes to #18
• Remove dependency to Serial and requests from umodbus.modbus, see #18
• ModbusRTU class is part of serial.py, see #18
• ModbusTCP class is part of tcp.py, see #18
• ModbusRTU and ModbusTCP classes and related functions removed from modbus.py, see #18
• Imports changed from:
• from umodbus.modbus import ModbusRTU to from umodbus.serial import ModbusRTU
• from umodbus.modbus import ModbusTCP to from umodbus.tcp import ModbusTCP
• read_coils and read_discrete_inputs return a list with the same length as the requested quantity instead of always 8, see #12 and #25
• Common functions bytes_to_bool and to_short moved to functions.py
• Use HTTPS URL instead of SSH for submodule
• Cleanup of root README, content moved to SETUP and USAGE, contributes to #30
• Moved SETUP and USAGE into docs folder, see #26 contributes to #30
• Use False or 0 as default values for registers without a specific initial value in modbus.py

Fixed

• read_coils returns list with amount of requested coils, see #12
• read_holding_registers returns list with amount of requested registers, see #25