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modbus

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Modbus library with TCP Master & Slave implementation.

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modbus test f05_test.exs
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test/f05_test.exs 

defmodule Modbus.F05Test do

  use ExUnit.Case

  import Modbus.TestHelper



  test "Write 0 to Single Coil" do

    model0 = %{0x50 => %{{:c, 0x5152} => 1}}

    model1 = %{0x50 => %{{:c, 0x5152} => 0}}

    val0 = 0

    cmd0 = {:fc, 0x50, 0x5152, val0}

    req0 = <<0x50, 5, 0x51, 0x52, 0, 0>>

    res0 = <<0x50, 5, 0x51, 0x52, 0, 0>>

    pp2(cmd0, req0, res0, model0, model1)

  end



  test "Write 1 to Single Coil" do

    model0 = %{0x50 => %{{:c, 0x5152} => 0}}

    model1 = %{0x50 => %{{:c, 0x5152} => 1}}

    val0 = 1

    cmd0 = {:fc, 0x50, 0x5152, val0}

    req0 = <<0x50, 5, 0x51, 0x52, 0xFF, 0>>

    res0 = <<0x50, 5, 0x51, 0x52, 0xFF, 0>>

    pp2(cmd0, req0, res0, model0, model1)

  end

end