pymodbus, 在 python 中，编写了一个完整的modbus协议.zip

# Pymodbus REPL ## Dependencies Depends on [prompt_toolkit](https://python-prompt-toolkit.readthedocs.io/en/stable/index.html) and [click](http://click.pocoo.org/6/quickstart/) Install dependencies ``` $ pip install click prompt_toolkit --upgrade ``` Or Install pymodbus with repl support ``` $ pip install pymodbus[repl] --upgrade ``` ## Usage Instructions RTU and TCP are supported as of now ``` bash-3.2$ pymodbus.console Usage: pymodbus.console [OPTIONS] COMMAND [ARGS]... Options: --version Show the version and exit. --verbose Verbose logs --support-diag Support Diagnostic messages --help Show this message and exit. Commands: serial tcp ``` TCP Options ``` bash-3.2$ pymodbus.console tcp --help Usage: pymodbus.console tcp [OPTIONS] Options: --host TEXT Modbus TCP IP --port INTEGER Modbus TCP port --help Show this message and exit. ``` SERIAL Options ``` bash-3.2$ pymodbus.console serial --help Usage: pymodbus.console serial [OPTIONS] Options: --method TEXT Modbus Serial Mode (rtu/ascii) --port TEXT Modbus RTU port --baudrate INTEGER Modbus RTU serial baudrate to use. Defaults to 9600 --bytesize [5|6|7|8] Modbus RTU serial Number of data bits. Possible values: FIVEBITS, SIXBITS, SEVENBITS, EIGHTBITS. Defaults to 8 --parity [N|E|O|M|S] Modbus RTU serial parity. Enable parity checking. Possible values: PARITY_NONE, PARITY_EVEN, PARITY_ODD PARITY_MARK, PARITY_SPACE. Default to 'N' --stopbits [1|1.5|2] Modbus RTU serial stop bits. Number of stop bits. Possible values: STOPBITS_ONE, STOPBITS_ONE_POINT_FIVE, STOPBITS_TWO. Default to '1' --xonxoff INTEGER Modbus RTU serial xonxoff. Enable software flow control.Defaults to 0 --rtscts INTEGER Modbus RTU serial rtscts. Enable hardware (RTS/CTS) flow control. Defaults to 0 --dsrdtr INTEGER Modbus RTU serial dsrdtr. Enable hardware (DSR/DTR) flow control. Defaults to 0 --timeout FLOAT Modbus RTU serial read timeout. Defaults to 0.025 sec --write-timeout FLOAT Modbus RTU serial write timeout. Defaults to 2 sec --help Show this message and exit. ``` To view all available commands type `help` TCP ``` $ pymodbus.console tcp --host 192.168.128.126 --port 5020 > help Available commands: client.change_ascii_input_delimiter Diagnostic sub command, Change message delimiter for future requests. client.clear_counters Diagnostic sub command, Clear all counters and diag registers. client.clear_overrun_count Diagnostic sub command, Clear over run counter. client.close Closes the underlying socket connection client.connect Connect to the modbus tcp server client.debug_enabled Returns a boolean indicating if debug is enabled. client.force_listen_only_mode Diagnostic sub command, Forces the addressed remote device to its Listen Only Mode. client.get_clear_modbus_plus Diagnostic sub command, Get or clear stats of remote modbus plus device. client.get_com_event_counter Read status word and an event count from the remote device's communication event counter. client.get_com_event_log Read status word, event count, message count, and a field of event bytes from the remote device. client.host Read Only! client.idle_time Bus Idle Time to initiate next transaction client.is_socket_open Check whether the underlying socket/serial is open or not. client.last_frame_end Read Only! client.mask_write_register Mask content of holding register at `address` with `and_mask` and `or_mask`. client.port Read Only! client.read_coils Reads `count` coils from a given slave starting at `address`. client.read_device_information Read the identification and additional information of remote slave. client.read_discrete_inputs Reads `count` number of discrete inputs starting at offset `address`. client.read_exception_status Read the contents of eight Exception Status outputs in a remote device. client.read_holding_registers Read `count` number of holding registers starting at `address`. client.read_input_registers Read `count` number of input registers starting at `address`. client.readwrite_registers Read `read_count` number of holding registers starting at `read_address` and write `write_registers` starting at `write_address`. client.report_slave_id Report information about remote slave ID. client.restart_comm_option Diagnostic sub command, initialize and restart remote devices serial interface and clear all of its communications event counters . client.return_bus_com_error_count Diagnostic sub command, Return count of CRC errors received by remote slave. client.return_bus_exception_error_count Diagnostic sub command, Return count of Modbus exceptions returned by remote slave. client.return_bus_message_count Diagnostic sub command, Return count of message detected on bus by remote slave. client.return_diagnostic_register Diagnostic sub command, Read 16-bit diagnostic register. client.return_iop_overrun_count Diagnostic sub command, Return count of iop overrun errors by remote slave. client.return_query_data Diagnostic sub command , Loop back data sent in response. client.return_slave_bus_char_overrun_count Diagnostic sub command, Return count of messages not handled by remote slave due to character overrun condition. client.return_slave_busy_count Diagnostic sub command, Return count of server busy exceptions sent by remote slave. client.return_slave_message_count Diagnostic sub command, Return count of messages addressed to remote slave. client.return_slave_no_ack_count Diagnostic sub command, Return count of NO ACK exceptions sent by remote slave. client.return_slave_no_response_count Diagnostic sub command, Return count of No responses by remote slave. client.silent_interval Read Only! client.state Read Only! client.timeout Read Only! client.write_coil Write `value` to coil at `address`. client.write_coils Write `value` to coil at `address`. client.write_register Write `value` to register at `address`. client.write_registers Write list of `values` to registers starting at `address`. ``` SERIAL ``` $ pymodbus.console serial --port /dev/ttyUSB0 --baudrate 19200 --timeout 2 > help Available commands: client.baudrate Read Only! client.bytesize Read Only! client.change_ascii_input_delimiter Diagnostic sub command, Change message delimiter for future requests. client.clear_counters Diagnostic sub command, Clear all counters and diag registers. client.clear_overrun_count Diagnostic sub command, Clear over run counter. client.close Closes the underlying socket connection client.connect Connect to the modbus serial server client.debug_enabled