Comments (4)
gavinying
commented on September 21, 2024
Hi, would you be able to share more infomation, like your setups or screenshots? Because "local echo" is usually an option provided by a serial terminal tool, however modpoll doesn't have "local echo" feature builtin.
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buddy-78
commented on September 21, 2024
Hi,
i am using modpoll in modbus RTU.
since my new usb-rs485 converter (FTDI FT232BL Chipset) echoes every sent byte back to its TX, modpoll gets checksum errors
Some modbus master simulators like in my screenshot do removing local echo.
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gavinying
commented on September 21, 2024
It seems you are using a "special" usb-rs485 converter, which might useful for debugging/hacking purpose. If you cannot find an option to disable such "local echo", then the easiest way is to get another normal usb-rs485 converter.
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gavinying
commented on September 21, 2024
Close it due to no activity for a while.
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Related Issues (20)
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- Add poll interval/rate for every single poll HOT 4
- writing registers with modpoll - how to do....? ...reading works fine ! HOT 7
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- docker compose file example is missing HOT 1
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