TCP-Com

TCP-Com is RS232 Serial to TCP/IP converter software (i.e., a Serial Server). You can easily interface serial ports directly to TCP/IP or UDP networks. TCP-Com can ALSO redirect Ethernet/IP data to real or “Virtual” RS232 serial ports. This allows you to use existing Windows-based serial RS232 communications software to send and receive data across any TCP/IP network.

TCP-Com software is extremely simple but powerful. It can be used to solve a wide variety of device interfacing and RS232 or TCP/IP conversion problems, such as the following:

  • Turn a PC into a Serial Device Server (Terminal Server).
  • Send or receive data over a TCP/IP port with any serial communications program.
  • Open COM ports located on another computer in your network as if they were local.
  • Use Ethernet network (or the Internet) as a giant serial RS232 cable (Serial Tunneling).
  • Use TCP-Com to feed data from one physical RS232 port to multiple RS232 serial communications applications.
  • Use TCP-Com to map a TCP/IP port to a different TCP/IP port.

A Serial Device Server (Terminal Server) is a hardware device that connects a serial instrument (balance, meter, barcode scanner, PLC, etc.) to Ethernet and provides an I/O path to the device through an IP port. TCP-Com performs the same function as Serial Device Server except it is a software program that runs on any Windows PC and uses the serial ports installed in that PC (up to 256) and the PC’s exiting TCP/IP network connection.

If you have an RS232 device connected to a com port on your Windows PC you can only connect to that com port with one software application. If you need to communicate with that device (com port) from 2 Windows applications you would have to use a “splitter cable” to make the RS232 data come in on 2 separate com ports. This would also require you to purchase another com port.

Interestingly you can actually use TCP-Com to make the RS232 device data on the one com port apprear on as many virtual com ports as you need. In this way TCP-Com acts as Virtual Serial Splitter, or “Y”, Cable and allows all your Windows serial communications applications to access a device on just one com port! See diagram, above, for how it works.

Intuitive Interface

In the TCP-Com window just select the com port number and the serial communications parameters for your serial device and enter an IP address and a socket number. Then activate! It’s that easy! Com port data will appear at the IP address and data from an IP port will appear at a real or virtual com port.

The Next Steps

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