pymodbus.client.asynchronous package¶
Async Modbus Client implementation based on Twisted, tornado and asyncio¶
Example run:
from pymodbus.client.asynchronous import schedulers
# Import The clients
from pymodbus.client.asynchronous.tcp import AsyncModbusTCPClient as Client
from pymodbus.client.asynchronous.serial import AsyncModbusSerialClient as Client
from pymodbus.client.asynchronous.udp import AsyncModbusUDPClient as Client
# For tornado based asynchronous client use
event_loop, future = Client(schedulers.IO_LOOP, port=5020)
# For twisted based asynchronous client use
event_loop, future = Client(schedulers.REACTOR, port=5020)
# For asyncio based asynchronous client use
event_loop, client = Client(schedulers.ASYNC_IO, port=5020)
# Here event_loop is a thread which would control the backend and future is
# a Future/deffered object which would be used to
# add call backs to run asynchronously.
# The Actual client could be accessed with future.result() with Tornado
# and future.result when using twisted
# For asyncio the actual client is returned and event loop is asyncio loop
Subpackages¶
Submodules¶
pymodbus.client.asynchronous.serial module¶
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class
pymodbus.client.asynchronous.serial.AsyncModbusSerialClient¶ Bases:
objectActual Async Serial Client to be used.
To use do:
from pymodbus.client.asynchronous.serial import AsyncModbusSerialClient
pymodbus.client.asynchronous.tcp module¶
-
class
pymodbus.client.asynchronous.tcp.AsyncModbusTCPClient¶ Bases:
objectActual Async Serial Client to be used.
To use do:
from pymodbus.client.asynchronous.tcp import AsyncModbusTCPClient
pymodbus.client.asynchronous.thread module¶
-
class
pymodbus.client.asynchronous.thread.EventLoopThread(name, start, stop, *args, **kwargs)¶ Bases:
objectEvent loop controlling the backend event loops (io_loop for tornado, reactor for twisted and event_loop for Asyncio)
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start()¶ Starts the backend event loop :return:
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stop()¶ Stops the backend event loop :return:
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