How to Configure PuTTY

Configure PuTTY to communicate serially with your Alicat

PuTTY is a commonly-used serial terminal program that you can use to communicate with your Alicat over RS-232 or RS-485. The instructions below explain how to configure PuTTY for optimal communications with your Alicat instrument.

How to configure PuTTY for use with Alicat instruments

  1. Download PuTTY from putty.org and run the installer.
  2. Open PuTTY; it will start on the Configuration screen shown below.
Default terminal settings in PuTTY before configuration for use with Alicat instruments

Default terminal settings in PuTTY before configuration for use with Alicat instruments

  1. Click on the Terminal category. The changes we make here will cause PuTTY to act like a normal serial terminal, such that pressing enter will move the cursor to the next line and both what you type and what gets returned stay on the screen.
    1. Check the box that says “Implicit LF in every CR.”
    2. Select the “Force on” radio button in the “Local echo” section.
Terminal settings in PuTTY after configuration for use as a serial terminal for Alicat instruments

Terminal settings in PuTTY after configuration for use as a serial terminal for Alicat instruments

  1. Click on the Connection category and then the Serial subcategory.
    1. Set the Speed (baud) to 19200.
    2. Set the Data bits to 8.
    3. Set the Stop bits to 1
    4. Ensure that “None” is selected for both Parity and Flow control.
Serial line settings in PuTTY after configuration for use with Alicat instruments

Serial line settings in PuTTY after configuration for use with Alicat instruments

  1. Click on the Session category.
    1. Select the “Serial” radio button in the “Connection type” section.
    2. Check that the selected COM port and baud rate (Speed) are correct.
Session COM port and baud rate settings in PuTTY after configuration for use with Alicat instruments

Session COM port and baud rate settings in PuTTY after configuration for use with Alicat instruments

  1. Save your settings so they can be recalled again later.

 

 

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