✉ Contact & Support

Have a question, found a bug, or need help getting started? Just send an email — no web forms, no ticket systems, no chatbots.

📌 Just curious or figuring out a detail before buying? Send a message — pre-sales questions are very welcome.

Why email, not a web form?

Forms and ticket systems create friction, lose formatting, and strip out attachments. Email works everywhere, lets you attach log files and screenshots, and gives you a proper thread in your own inbox to refer back to.

We read every message and reply as soon as possible. If your question might help others, we'll add it to the documentation.

How to write a good support request

A good first message helps us help you faster. Please try to include:

📍
Your setup
Operating system (Windows 10, Ubuntu 24.04, macOS 14…), GPIBEE firmware version (shown in the web interface), and VISA software in use.
📝
What you're trying to do
One or two sentences describing the goal — e.g. "I want to control a Keithley 2400 with PyVISA on Ubuntu."
🚨
What's going wrong
The exact error message or unexpected behaviour. Copy-paste is better than paraphrasing. Screenshots are welcome.
What you've already tried
Saves time by avoiding suggestions you've already tested. Mention if you've gone through the Troubleshooting sections in the manual or tutorials.
Self-help resources

Many questions are already answered in the documentation. Worth checking before sending an email:

ResourceWhat it covers
Quick Start Guide First-time setup, cable connections, LED states, first GPIB command
User Manual Complete reference — all operating modes, settings, API, troubleshooting appendix
Tip:The GPIBEE web interface at 192.168.3.2 has a built-in GPIB console. If you can send *IDN? there and get a response, the hardware is working — the issue is on the software side.
FAQ and Things Good to Know

A running FAQ of known quirks and interoperability details. Click a question to expand it.

I use Keysight IO libraries and use GPIBee in USBTMC mode. My instrument BEEPS whenever I turn it on or connect GPIBee.

This is a known interaction between Keysight VISA and USBTMC-mode instruments.

Keysight VISA — like NI-VISA — runs a background service that automatically detects new instruments and sends each one an *IDN? query to identify it. USBTMC devices can report, via their USB descriptor, whether they are IEEE 488.2 compliant and whether they support SCPI. When both are set to "not supported," a detection service is expected to skip the automatic query — but Keysight VISA currently queries these instruments anyway.

On instruments that don't support *IDN?, this triggers exactly the behaviour you're seeing: a BEEP and/or a queued error on the instrument, and it may also switch it into remote mode — even though you never sent that command yourself. We've reported this behaviour to Keysight; understandably, their priority is Keysight-branded instruments, so a broader fix may take a while.

Workaround: GPIBEE has a setting to suppress *IDN? writes to instruments — only enable it if you're actually affected by this. Keysight VISA does offer its own GUI option to disable automatic *IDN? queries during instrument detection, but that option is only available for VXI-11 instruments — it's simply not offered for USBTMC instruments, so for the USBTMC case described here, GPIBEE's setting is the workaround.

My PC has (or had) a GPIB PCI/PCIe card — can GPIBee replace it?

Yes. GPIBEE is a good replacement for a GPIB PCI or PCIe controller card, especially if the original card is no longer available, isn't supported on current operating systems, or the PC it was installed in has been retired.

GPIBEE connects over USB or Ethernet instead of a PCI slot, so it works with any modern PC or laptop without an internal card, while still presenting itself to your software as a standard VISA GPIB interface — so existing scripts and drivers generally keep working unchanged.