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Embedded file system for a programmable logic controller

  • US 6,845,401 B1
  • Filed: 12/30/1998
  • Issued: 01/18/2005
  • Est. Priority Date: 12/30/1998
  • Status: Expired due to Term
First Claim
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1. A server operably connected between an industrial programmable logic controller and a network for storage of web pages and programs comprising:

  • a memory device for storing the web pages and programs;

    an FTP server operably connected to the memory and the network for uploading the programs into the memory from the network;

    an HTTP server operably connected to the memory and the network for downloading the web pages from the memory onto the network;

    a TCP/IP stack operably connected between the network and the FTP and HTTP server; and

    , means for allowing the industrial programmable logic controller access to the memory for downloading the programs into the industrial programmable logic controller, the industrial programmable logic controller being operably connected to an input/output module wherein a communication link facilitates bi-directional exchange of signals between the input/output module and an associated device.

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