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Up to Python 3.1, RLocks are implemented in Python and hence are slower than Locks.
There are 4 places in modbus_tk where RLock is used. Regarding the modbus-tk library itself, it is fine to replac…
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I just grabbed the latest modbus_tk and updated to pyserial 3. There are still issues with RtuMaster._send().
The fix resulting from https://github.com/ljean/modbus-tk/issues/57 is not a complete fix…
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We need to support python 3. This is going to need a complete rewrite of the modbus protocol implementation, as `modbus_tk` is not python3 compatible, and is generally not very nice to work with (bad …
jaapz updated
8 years ago
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In the example below I'm writing the same value to five holding registers encoded as a Modbus 32-bit float to a Modbus slave but the external master is not seeing the same value in all five registers,…
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Hello. I am new to this library and Modbus in general. I want to set up my Raspberry PI device as a master and send various commands to ESP32 devices. I have slave code running on my ESP32 devices alr…
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hey guys
i want to create a server modbus tcp that can send messages (example "hello")
my project is to send messages to my plc through modbus tcp
can anyone help me out
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hi,
I return from my Modbus TCP server back:
Error while flushing the socket: flush_socket: maximum number of iterations reached
it seems that the server closes the connection like an overload…
Newan updated
2 years ago
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Current implementation of Modbus uses a predefined template constisting of coils/registers - related values. It might be a good idea to be able to add actual modbus rtu slaves to conpot.
For each …
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We hit this as follows:
- in a `modbus_tcp.TcpServer.before_send` hook, we call `modbus.Slave.get_values`; this runs in the TCP server thread (`Thread-1`)
- meanwhile, in the main thread, we…
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Hi there!
https://github.com/ljean/modbus-tk/blob/41073499f57bdbeaa89f3fae687dfa368c67a876/modbus_tk/utils.py#L38
The exception handling here seems not necessary as the Exception will be rethrow…