VISA Errorcode -1073807302 When sending commands

[jashar]

Hello,

I have following problem:

Currently I'm writing a software which is communicating with a network analyzer and an Accretech UF200 Waferprober using VISA. Both are connected to my computer via an GPIB to USB adapter.

Scenario 1: Only Network Analyzer is connected

Everything works fine and I can send commands and receive answers from the network analyzer.

Scenario 2: Both Network Analyzer and Prober are connected

When I try to send a command (no matter which one) using RawIO.Write() I immediately get the error: Unable to start operation because setup is invalid (due to attributes being set to an inconsistent state)

I also tried sending commands with NI MAX but I get the same result there with the prober.

When I try sending a query to the Network Analyzer with NI MAX I just get a timeout error.

I have also appended a screenshot of the IO Trace where I request the prober ID. Unfortunately it's in German but the last line contains the mentioned error message.

I really don't know what causes this problem or how to fix it. Do I have to change any settings?

Did anybody else have encountered this problem or has an idea on how to solve this issue?

Best regards,

Jakob

[crossrulz]

My first thought is you have both instruments on the same GPIB address.

[jashar]

They both have different GPIB addresses.

But I will check on Monday if the address of the GPIB Adapter is not the same as the one of the prober.

Thanks for the hint!

[cstorey]

Make sure the prober is set to send and receive and not be a controller in charge (i.e. a slave device rather than a master).  Some probers can use their GPIB ports to communicate with test equipment directly, rather than listening/responding to a PC.  If there are 2 master's on the bus (PC adn prober) commands would likely timeout.

Another issue might be cable length.  How long is the cable between prober and NA?  Have you tried another cable between them?

Craig

[jashar]

The problem turned out to be that the GPIB Adapter was using the same address as the prober.

Thank you guys for your input and @crossrulz thanks for your hint with the same addresses.

[jerryhuprober]

Hi Jashar 

i also want to consult a question :

when i use GPIB - USB -HS to connect my UF200 prober , and in my NI MAX when i scan equipment , I can not find UF200 prober.

Do you have experiece how to successfully recognized tsk UF probe with GPIB cable and Ni software .

Details description as below :

Now i use the USB-GPIB-HS adapter cable to connect the probe station of UF200.

MY PC computer has a 488.2 driver installed, and the UF200 machine has parameters for setting GPIB.

Relevant settings have been made according to the machine parameter instructions.

 The current issue is that after connecting the machine with GPIB cable:

"GPIB USB HS" GPIB0 "can be seen in NIMAX,

On the right side GPIB Setting in picture 1 , when I set the main address to the same address as the probe GP-IB Device address ,

After selecting" Scan Instrument "on the right, it shows that no instrument was found after scanning the instrument.

Sending "* IDN?" in "interactive control" did not respond, and the machine and computer cannot connect normally. 

[Altynai南城]

你好，不知道你解决这个问题了没有，出现这样的问题是因为你使用的转接头接触不良，你可以使用万用表尝试测试一下是否开路

[Minions]

If this Prober is an older instrument, then it may not respond to the *idn? query.  Try id? instead and see if that helps.

[rolfk]

Actually, the GPIB adapter should NOT use the same GPIB address than the prober. Address 5 for the GPIB adapter is highly unusual and likely is the address of the prober and hence wrong to select for the controller itself!