Can a GPIB-USB-HS Handle Multiple Drivers When Daisy-Chained?

Updated Dec 2, 2022

Reported In

Hardware

  • GPIB-USB-HS

Issue Details

  • I have daisy-chained multiple 3rd party GPIB instruments to my GPIB-USB-HS controller. Will the controller be able to handle the 3rd party drivers?
  • How will my GPIB-USB-HS controller be able to interact with 3rd party hardware when I daisy-chain multiple instruments?
  • I am trying to develop a driver for my GPIB instruments. Will the GPIB-USB-HS controller be able to address my 3rd party instruments?

Solution

Yes, the GPIB-USB-HS controller is capable of addressing 3rd party instruments when in a daisy-chain configuration.

The GPIB-USB-HS controller uses the NI 488.2 driver, which provides a communication layer between the operating system and GPIB protocol. This communication layer is responsible for assigning addresses to each instrument. Regardless of which drivers are used by the 3rd party instrumentation, the GPIB-USB-HS will be able to interact with the hardware as long as every instrument is available on the bus, and each address can be identified.

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