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Fix coil read problem. #1833

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Fix coil read problem. #1833

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glcj
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@glcj glcj commented Oct 18, 2024

Modbus driver does not read Coil & Discrete Inputs correctly.

  1. It does not return Coil & Discrete Inputs
  2. The bits are returned in order from top bit to bottom bit and must be inverted.

Coil writing needs to be tested.

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