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modbus

0.3.2
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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 F05Test do

  use ExUnit.Case

  import TestHelper



  test "Write 0 to Single Coil" do

    state0 = %{ 0x50=>%{ {:c, 0x5152}=>1 } }

    state1 = %{ 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, state0, state1

  end



  test "Write 1 to Single Coil" do

    state0 = %{ 0x50=>%{ {:c, 0x5152}=>0 } }

    state1 = %{ 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, state0, state1

  end



end