title: ASTM Protocol over Ethernet
body: <p>I am integrating Vitros 4600 using ASTM protocol on Ethernet, I have integrated another machine in past using ASTM over serial port which works fine.</p>
  
  <ol>
  <li>Currently Issue I am facing is that Vitros Machine keep giving error <code>"Unexpected reply from LIS".</code></li>
  <li>My packet is as per document</li>
  </ol>
  
  <blockquote>
    <p>1H|\^&amp;|||HOST||||||||E1394-97</p>
  
  <pre><code>2P|1|00001|||FIRST^LAST^E||19780407|F||843TALLOAKSDR^HAILVILLEMD45831|||^^|||||||||||||||||||||
  
  3O|1|CCY1311181^^||^^^1.0000+300+1.0|R||||||A||||5||||||||||O|||||
  
  4L|1|N
  </code></pre>
  </blockquote>
  
  <p>I am implementing it in C# &amp; can successfully read message from Vitros 4600 but Vitros 4600 cannot understand my reply.</p>
  
  <p>In serial communication I notice there is ENQ/ACK like packets first then actuall message, will this occur in tcp too? as data come &amp; send over tcp in stream not in packet.</p>