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please dont purchase PC controlled test equipment

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alm:

--- Quote from: Wolfgang on March 08, 2023, 10:52:59 am --- I think that the demand for remote-only is huge. PXI is fine as long as standard interfaces are used, otherwise you are again hooked to a specific manufacturer.

--- End quote ---
No argument the demand is huge for all kinds of automated setups. But it is a niche market. For bench use, a more traditional unit with a front panel and remote control is more versatile for the majority of people.

Is PXI like PCI in that you need a driver for every instrument? Or is it like GPIB where you only need a driver for the interface and the rest is standard SCPI?

Wolfgang:

--- Quote from: alm on March 08, 2023, 11:22:32 am ---
--- Quote from: Wolfgang on March 08, 2023, 10:52:59 am --- I think that the demand for remote-only is huge. PXI is fine as long as standard interfaces are used, otherwise you are again hooked to a specific manufacturer.

--- End quote ---
No argument the demand is huge for all kinds of automated setups. But it is a niche market. For bench use, a more traditional unit with a front panel and remote control is more versatile for the majority of people.

Is PXI like PCI in that you need a driver for every instrument? Or is it like GPIB where you only need a driver for the interface and the rest is standard SCPI?

--- End quote ---

Regarding PXI I suppose that there are good (SCPI, ...) and bad (proprietary protocol) guys. I dont have any PXI stuff so I cannot tell from personal experience. In my lab everything from Keysight, R&S, Rigol, ... has a user interface (expect a PicoScope) plus SCPI programmability, but the instruments for automation I built myself, still using SCPI interfaces.

zrq:
If so many people don't like PC controlled test equipment, please sell them at once one get hands on them, on ebay or this forum. They are going to loose value quickly, maybe after a Windoze update it will break, so better put a lower asking price to get rid of them quickly. ;)

So that I can pick them up  :-X .

switchabl:

--- Quote from: alm on March 08, 2023, 11:22:32 am ---Is PXI like PCI in that you need a driver for every instrument? Or is it like GPIB where you only need a driver for the interface and the rest is standard SCPI?

--- End quote ---

PXI is essentially just PCI with a different form factor and some extra signals (trigger and so on). Some PXI cards expose a SCPI interface through VISA but you still need a vendor-specific driver. PXI also supports DMA transfers for high-throughput applications and there isn't really a standard interface for that (maybe IIO on Linux) so that will always be proprietary.

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