topic viIn16() Non-Fatal Run Time error in LabWindows/CVI

viIn16() Non-Fatal Run Time error

herbertwatson — Mon, 01 Oct 2012 18:56:19 GMT

I am having an issue with this section of the code. When I run the following steps on TestStand 2012, LabWindows CVI 2012, and Window 7.0

      ReturnCode = viIn16 (hInstr, VI_PXI_CFG_SPACE, 0x00, &VendorId);
      ReturnCode = viIn16 (hInstr, VI_PXI_CFG_SPACE, 0x02, &DeviceId);

I receive the attached error.

I do not get this error with 11 of my 14 PXI devices.

The devices I get this error from are

National Instruments,    PXI-8360,            PXI Bridge
National Instruments,   PXI-2576,           PXI Switch Multiplexer

This error also occurs in NI-MAX VISA Test Panel.

This error does not occur on our test station running Windows XP, TestStand 4.2.1 (4.2.1.83), Lab Windows CVI 8.51(356), NI-MAX 4.6.2f1.

I am attaching the section of code.

Re: viIn16() Non-Fatal Run Time error

jallen88 — Tue, 02 Oct 2012 17:20:05 GMT

herbertwatson,
Which version of VISA is being used in each of these setups?

Have you tried using viIn16Ex() or viMoveIn16Ex() to see if those also return an error?

Windows 7 changed the way they allow access to memory registers on devices, so this may be the issue.

Re: viIn16() Non-Fatal Run Time error

herbertwatson — Tue, 02 Oct 2012 21:03:47 GMT

I am using VISA version 5.2. viIn16Ex() or viMoveIn16Ex() do not cause a Non Fatal Run Time error. However, both functions return an identical error message and incorrect data.

Re: viIn16() Non-Fatal Run Time error

jallen88 — Wed, 03 Oct 2012 16:29:08 GMT

herbertwatson,
When you say that both viIn16Ex() or viMoveIn16Ex() return an identical error message, do you mean that their return code is also -1073807257 and the message is "The given session or object reference does not support this operation."?

Have you tried the '8' or '32' versions of these functions to see if the devices can accept a different data size?

Re: viIn16() Non-Fatal Run Time error

herbertwatson — Wed, 03 Oct 2012 17:05:47 GMT

Yes the return code is also -1073807257 and the message is "The given session or object reference does not support this operation.".

I have tried the '8' or '32' versions of these functions with the same result?

Re: viIn16() Non-Fatal Run Time error

jallen88 — Fri, 05 Oct 2012 20:39:06 GMT

herbertwatson,

Can you capture and attach a log from NI I/O Trace so we can gain more insight into the VISA calls that are being made?

KB 4P3FR2LQ: Performing a Good NI I/O Trace Capture for Debugging/Troubleshooting