Pfaff 2140 Communication Problems – Solved

This solved my Pfaff 2140 communication problems – all I had to do was change the baud rate – maybe some of this will help you …. Tech Info from Pfaff – YEA it works.

If you are experiencing a No Communications with machine error when attempting to transfer designs to a 2140, 2144, or 2170 connected with a serial cable, please do the following.

NOTE: After completing steps 1-4 below, attempt to send a design to your machine. If the transfer is successful, do not continue through the remaining steps. If you are still experiencing non-communication between your computer and machine after completing these steps, continue with the remaining steps.
NOTE: If your computer does not have a serial port we recommend using a USB to Serial adapter (such as the Belkin F5U 109) or the 2140/2144 USB Connection cable available as an accessory from your local Pfaff Dealer.

Make sure all connections are secure:
1. For the 2140/2144/2170, try both card drives.
a. From the Embroidery System folder open 4D Configure.b. Make sure the 2140/2144/2170 Direct connection is selected.c. Try each ComPort setting. Attempt to transfer a design to your machine after each setting change.
Change the Port Settings in the Device Manager:

2. Change the baud rate of the port:
a. Right click on MY COMPUTER and select PROPERTIES from the menu.b. Select the DEVICE MANAGER tab (for Windows XP select the HARDWARE tab first).c. Click the + in front of the ComPorts (LPT).d. Right click the ComPort used by your sewing machine, and select Properties from the menu.e. Select the Port Settings tab.f. Change the Bits per second to 1200. Do not change any other settings.g. Click the OK button to close all windows.h. Attempt to transfer a design.i. If this does not work, try a variety of low and high settings. If no settings work, change the Bits Per Second back to 9600.

3. Change the buffer settings of the port:
a. Right click on MY COMPUTER and select PROPERTIES from the menu.b. Select the DEVICE MANAGER tab (for Windows XP select the HARDWARE tab first).c. Click the + in front of the ComPorts (LPT).d. Right click on the ComPort used by your sewing machine and select properties from the menu.e. Select the Port Settings tab.f. Click the Advanced button.g. Click and drag both slider bars (receive and transmit buffers) all the way to the left.h. Click the OK button to close all windows.i. Attempt to transfer a design.j. If this resolves your conflict you can move the sliders over one notch at a time and try out the connection to get the optimum position and still use your program successfully.

4. Change the flow control of the port:
a. Right click on MY COMPUTER and select PROPERTIES from the menu.b. Select the DEVICE MANAGER tab (for Windows XP select the HARDWARE tab first).c. Click the + in front of the ComPorts (LPT).d. Right click on the ComPort used by your sewing machine and select properties from the menu.e. Select the Port Settings tab.f. Check the Flow Control. Try all three settings (Xon / Xoff, Hardware, None) from the drop down menu. The default setting is generally Xon / Xoff.g. Set the Flow Control to Xon / Xoff and try to connect.h. Set the Flow Controlet to Hardware and try to connect. If you are successful you may want to play with the Bits per second to get the fastest connection.

NOTE: If you are still experiencing non-communication between your computer and Pfaff creative machine, and have completed the above steps, continue with each successive step below until you are able to transfer a design to your machine.
A ComPort sends information to your Serial Port. Your computer can have several virtual ComPorts for each physical Serial Port. We have found that removing the existing virtual ComPorts and restarting the computer, can force the computer to find the ComPort the machine is connected to.  - Caryn

4 Responses

  1. Eliz Groom
    Eliz Groom February 4, 2013 at 2:41 pm |

    Will the above for 4D help me? I have 5D CONFIGURE.

  2. Betty Ottesen
    Betty Ottesen April 14, 2013 at 12:54 pm |

    Will this work with 2170 and 5D Embroidery Program with windows 7?

  3. Christina
    Christina September 10, 2013 at 7:58 am |

    I get a communication error on my 2144. Also, the dongle is not activated. I have been using this for years without a problem. Why has it suddenly stopped working? Help, please!

  4. Bob
    Bob July 22, 2014 at 1:23 pm |

    Hi Christina. You will have to contact the Embroidery manufacturer to re-enable your licensed dongle. Good luck.

Leave a Reply