例如,你可以使用`on_function`方法来指定一个特定的Hook仅应用于特定的Modbus函数代码。此外,Hooks还允许你注册多个Hook函数,以便根据需要执行不同的操作。 四、总结 这篇文章详细介绍了Modbus_tk库中的Hooks用法。通过使用Hooks,你可以在Modbus通信的不同阶段添加自定义代码,以实现各种功能,例如数据转换、错误处理等。
设置hook函数分三步 定义函数 参数args是一个元组,是主站/从站在执行完某个操作,如发送数据,后使用hook函数时传入的参数,元祖中包含的参数不固定,可以自己查看源码 载入函数:hooks.install_hook('触发hook函数的操作名',函数名) 愉快的使用! modbus_tk.hooks中定义了哪些操作可以触发hook,具体请自行查看源码! 有...
def install_hook(name, fct): """ Install one of the following hook modbus_rtu.RtuMaster.before_open((master,)) modbus_rtu.RtuMaster.after_close((master,) modbus_rtu.RtuMaster.before_send((master, request)) returns modified request or None modbus_rtu.RtuMaster.after_recv((master, response...
Can be customized with hook mechanism (simulate errors, timeouts...) ready-to use simulator with RPC interface Defines very easily your own memory blocks Set/Get values for any place in a memory block logging capability through python logging module Web-based HMI (experimental feature which requir...
import modbus_tk import modbus_tk.defines as cst from modbus_tk import modbus_tcp, hooks import logging def main(): """main""" def on_after_recv(args): response = args[1] logger.debug("on_after_recv {0} bytes received".format(len(response))) hooks.install_hook("modbus_tcp.TcpMaste...
definstall_hook(name, fct):""" Install one of the following hook modbus_rtu.RtuMaster.before_open((master,)) modbus_rtu.RtuMaster.after_close((master,) modbus_rtu.RtuMaster.before_send((master, request)) returns modified request or None ...
yoadded on_exception hook for Server class.8ec7cd92年前 182 次提交 提交取消 提示:由于 Git 不支持空文件夾,创建文件夹后会生成空的 .keep 文件 .externalToolBuilders Initial import of code 14年前 examples use console in tcpmaster example
(bytes_data) hooks.install_hook('modbus.Master.after_recv', on_after_recv) try: def on_before_connect(args): master = args[0] logger.debug("on_before_connect {0} {1}".format(master._host, master._port)) hooks.install_hook("modbus_tcp.TcpMaster.before_connect", on_before_connect)...
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Can be customized with hook mechanism (simulate errors, timeouts...) ready-to use simulator with RPC interface Defines very easily your own memory blocks Set/Get values for any place in a memory block logging capability through python logging module ...