Discussion:
Serial communication error

Hi. We have recently been experiencing difficulty using truck doctor. The software has been tested using the canbox on a r1.4 reach truck.

However when we use the truck doctor cable, direct through the serial port connection it doesn't see anything connected. We have tried, several different trucks, we have tried 2 different laptop, and we have also had a new set of cables.
It all worked fine until one day, its just stopped working and we cannot seem to workout why. Has anyone experienced anything similar?
The laptop runs windows 10 and the tablet runs windows 7 both have serial connections. We have also tried re installation of the software version 2.01.005.

We don't know what else to try.
  • Posted 21 May 2020 10:54
  • By elektrodrive
  • joined 2 May'08 - 747 messages
  • West Midlands, United Kingdom
enquiries@elektrodrive.co.uk

http://www.facebook.com/pages/Elektrodrive/135894223166624
Showing items 1 - 6 of 6 results.
Yes. Thanks usb to serial box worked and solved problem.??
  • Posted 10 Jun 2020 20:23
  • By elektrodrive
  • joined 2 May'08 - 747 messages
  • West Midlands, United Kingdom
enquiries@elektrodrive.co.uk

http://www.facebook.com/pages/Elektrodrive/135894223166624
Hi
Have you selected com port 1 in the truck doctor program ?
  • Posted 10 Jun 2020 17:07
  • By Lindetech
  • joined 27 Mar'16 - 131 messages
  • Auckalnd, New Zealand
Jungheinrich incado found fault in cable and fixed. Thanks.
  • Posted 21 May 2020 21:24
  • By elektrodrive
  • joined 2 May'08 - 747 messages
  • West Midlands, United Kingdom
enquiries@elektrodrive.co.uk

http://www.facebook.com/pages/Elektrodrive/135894223166624
And for the Jungheinrich trucks;
If you can,t connect(no project found)
you can by entering chascisnumber in partsprogram get the Catologe number and copy/paste this in the Judith program(right top corner)
  • Posted 21 May 2020 17:56
  • By John50
  • joined 7 Sep'19 - 153 messages
  • Netherlands
I'll try a usb converter box. Thanks.
  • Posted 21 May 2020 16:48
  • By elektrodrive
  • joined 2 May'08 - 747 messages
  • West Midlands, United Kingdom
enquiries@elektrodrive.co.uk

http://www.facebook.com/pages/Elektrodrive/135894223166624
Use a usb converter and check comport in windows and in program,
i think you used different comport once on laptop and now it changed in windows.
In Truckdoctor you can tap the wrench icon, Configuration, and set which comport to use, that has to be the same as in windows Device Manager.
  • Posted 21 May 2020 15:18
  • Modified 21 May 2020 15:21 by poster
  • By John50
  • joined 7 Sep'19 - 153 messages
  • Netherlands

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

SMV (Konecranes) 33-1200C
Balling, Denmark
Used - Sale
Nagano NUL120-6
Yokohama, Japan
Used - Sale

PREMIUM business

Linde Material Handling
Linde Material Handling is your full-service provider. From forklifts to automation - we stand for innovation and for your performance.
Global Industry News
edition #1259 - 4 December 2025
In this week’s Forkliftaction News , we look at the November Logistics Manager’s Index which has dropped to the lowest it has been since June 2024... Continue reading
Fact of the week
Allodoxaphobia is rare social phobia, an intense and irrational fear of other people's opinions. It goes beyond typical social awkwardness or shyness and can significantly impact a person's life.
Upcoming industry events …
February 24, 2026 - Panama City, Panama
April 8-10, 2026 - Jiangsu Province, China
June 10-11, 2026 - Cologne, Germany
SMV (Konecranes) 33-1200C
Balling, Denmark
Used - Sale
Nagano NUL120-6
Yokohama, Japan
Used - Sale

PREMIUM business

Linde Material Handling
Linde Material Handling is your full-service provider. From forklifts to automation - we stand for innovation and for your performance.