Archived: NI-RIO 3.3.0 Known Issues

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Overview

This document has been archived and is no longer updated by National Instruments.

This document contains the NI-RIO 3.3.0 known issues that were discovered before and since the release of NI-RIO 3.3.0. Not every issue known to NI will appear on this list; it is intended to only show the severe and more common issues that can be encountered. Each Issue appears as a row in the table and includes an issue title, a brief description of the problem, any workarounds that might help resolve the issue, and the date the issue was added to the document (not the reported date). The workarounds that appear in the document are not always tested by NI and are not guaranteed to resolve the issue. If a workaround refers you to the NI KnowledgeBase, please visit www.ni.com/kb/ and enter that KB number in the search field to locate the specific document. The brief description given does not necessarily describe the problem in full detail, and it is expected that you might want more information on an issue. If you would like more information on an issue feel free to contact NI and referencing the ID number given in the document. You can contact us through any of the normal support channels including phone, email, or the discussion forums. See www.ni.com/ask to contact us. Also consider contacting us if you find a workaround for an issue that is not listed in the document so that we can add the workaround to the document.

Known Issues

The following items are known issues in NI-RIO 3.3.0.

Known Issues with NI-RIO 3.3.0 and LabVIEW 2009

 

184722Mount SD Card (9802) Doesn't return error on Pharlap
185187Chassis settings don't automatically deploy when switching from scan mode to FPGA mode
195192RIO Device Setup crashes after running a program with User-Defined variables on cRIO
193724FPGA Discovery fails silently on sbRIO if FPGA is in a certain state when auto-discovered
187879Discovery is slow (~15 sec.) if RIO local chassis has 8 modules
171345Mounting/Unmounting a NI 9802 in Real-Time interrupts Scan Engine
1779019401 output glitches high when set to output and sleep is asserted or FPGA VI is downloaded
182431cRIO-902x controllers do not support Ethernet polling
184171cRIO-9074 set to Ethernet polling still uses interrupt based Ethernet
196435Configuring a module in scan mode that has been swapped for another without restarting causes error 1070
132979Reading Empty Target to Host DMA FIFO Gradually Starves CPU in built LabVIEW RT executables on cRIO targets
4K1CDCMADMA from the host to the FPGA target on the cRIO-9002/9004
   

Known Issues with NI-RIO 3.3.0 and LabVIEW 8.6.x

 

185187Chassis settings don't automatically deploy when switching from scan mode to FPGA mode
-116620NiRioScanInterface DMA Channel is listed when using Scan Interface along with LabVIEW FPGA Host Interface
-4K1CDCMADMA from the host to the FPGA target on the cRIO-9002/9004
-132979Reading Empty Target to Host DMA FIFO Gradually Starves CPU in built LabVIEW RT executables on cRIO targets
-131654Cannot Deploy Scan Interface Modules or IO Variables with Non-ASCII Characters
-135570Abort and Reset Methods do not execute on incoming error
   

Known Issues with NI-RIO 3.3.0 and LabVIEW 8.5.x

 

4K1CDCMADMA from the host to the FPGA target on the cRIO-9002/9004
VIs that use the calibration API should be modified to use the RIO Device I/O control
40243FPGA code generation into an existing host VI is very slow in FPGA Wizard
Large configuration files load slowly in the FPGA Wizard
Maximum Time I/O rate values is 70 kHz for FPGA Wizard
Selecting external clock requires external clock source in FPGA Wizard
114569NI-RIO 3.1.1 does not install support for the NI 987x serial modules for LabVIEW 8.5.x
   

Known Issues with NI-RIO 3.3.0 and LabVIEW 8.2.x

 

4G3AED20FPGA I/O Property Node returns wrong value for Module Model Code of NI 9217 module
4DAEDMLXRead/Write Controls execute more slowly after upgrade to NI-RIO 2.4.1 or later
4K1CDCMADMA from the host to the FPGA target on the cRIO-9002/9004
3VKDOURYDMA in parallel While Loops

 

Further Information

 

ID

Known Issue

 

Known Issues with NI-RIO 3.3.0 and LabVIEW 2009

184722

Mount SD Card (9802) Doesn't return error on Pharlap

The NI 9802 is not supported on Pharlap targets (900x). 

If an attempt to mount the NI 9802 in LabVIEW Real-Time is made it will not work; however, no error is returned.  The drive letter returned is “/” which is the only indication this didn’t work.

Workaround—N/A


Date Added—11/25/09
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185187

Chassis settings don't automatically deploy when switching between scan mode and FPGA mode

Changes to the chassis properties are not automatically deployed.  This is problematic when switching between Scan and FPGA Interface mode because it means the project can easily get out of sync with the target if the user does not manually deploy the chassis.

Workaround—Manually deploy settings whenever changes are made to chassis properties.


Date Added—11/25/09
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195192

RIO Device Setup utility crashes after running a program with User-Defined variables on cRIO

Once a VI is run with user-defined variables, subsequently running the RIO Device Setup will cause the target to become unresponsive.

Workaround—Before running RIO Device Setup, (1) download a blank FPGA VI  or (2) Reset the device.


Date Added—11/25/09
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193724

FPGA Discovery fails silently on sbRIO if FPGA is in a certain state

Anytime the sbRIO is in the following states: safe mode, unconfigured IP address, or the NI-RIO driver is not installed on the controller, FPGA auto-discovery will fail silently.

Note1 -- If the sbRIO controller is not in one of the states listed above, auto-discovery succeeds.
Note2 -- If there is some condition that prevents module discovery (not FPGA target discovery) from working during sbRIO auto-discovery, it is reported correctly.
Note3 -- cRIO auto-discovery reports errors properly at every stage

Workaround——(1) Manually add the FPGA target, or (2) resolve any of the conditions above that prevent auto-discovery

Date Added—11/25/09
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187879

Discovery is slow (~15 sec.) if RIO local chassis has 8 modules

This only happens if all modules are selected and added at once. Adding less modules works as expected and takes much less time.

Workaround—N/A

Date Added—11/25/09
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171345

Mounting/Unmounting a NI 9802 in Real-Time interrupts Scan Engine

When you take scan mode measurements and then mount and unmount the SD card, on the subsequent reads the scan mode I/O variable throws error -65536 until the FPGA VI is run.

Workaround—Instead of the blank FPGA VI required to normally make this work, use an empty while loop inside the FPGA VI and leave this VI running while running the RT VI.

Date Added—11/25/09
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177901

9401 output glitches high when set to output and sleep is asserted or FPGA VI is downloaded

The 9401 has a pull-up resistor causing this to happen.

Workaround—Before going into sleep or downloading a new VI, set the outputs to inputs to prevent the glitch


Date Added—11/25/09
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182431

cRIO-902x controllers do not support Ethernet polling

The option is currently grayed out for these controllers

Workaround—N/A


Date Added—11/25/09
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184171

cRIO-9074 set to Ethernet polling still uses interrupt based Ethernet

When Ethernet polling is enabled on this controller it still gets interrupts anyway, causing jitter

Workaround—N/A


Date Added—11/25/09
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196435

Configuring a module in scan mode that has been swapped for another without restarting causes error 1070

If a module being used in scan mode with programmatic configuration is swapped for another module, “Refresh Local Modules” followed by discovering children of the I/O Variable Container will return seemingly valid references with correct model and slot property information; however, "To More Specific Class" returns “Error 1070”, preventing the refnum from being used to configure modules.

The class of the module refnum is only updated at open, and the implicitly opened refnum is not being closed.

Workaround—(1) To prevent the issue, explicitly close all references (IO and module) by calling “Close Variable Connection” from the Shared Variables Palette, before calling "Refresh Local Modules" and discovering children of the I/O Variable Container. (2) If the VI is stopped and started again the references will be updated properly
Date Added—11/25/09
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132979

Reading Empty Target to Host DMA FIFO with Timeout Set to Zero Gradually Starves CPU in built LabVIEW RT executables on cRIO targets

In built LabVIEW RT applications on cRIO, if a Target to Host DMA FIFO read executes with a timeout of zero and the FIFO is empty it will require extra processing that increases the CPU usage on the controller.

Workaround— Read zero elements to find elements remaining, instead of using a zero timeout

Date Added—01/15/2009
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4K1CDCMA

DMA from the host to the FPGA target on the cRIO-9002/9004

DMA is not supported from the host to the FPGA target on the cRIO-9002/9004.

LabVIEW returns an error if you try to output DMA from the cRIO-9002/9004.

Workaround—N/A

Date Added—01/15/2009
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Known Issues with NI-RIO 3.3.0 and LabVIEW 8.6.x

185187

Chassis settings don't automatically deploy when switching between scan mode and FPGA mode

Changes to the chassis properties are not automatically deployed.  This is problematic when switching between Scan and FPGA Interface mode because it means the project can easily get out of sync with the target if the user does not manually deploy the chassis.

Workaround—Manually deploy settings whenever changes are made to chassis properties.


Date Added—11/25/09
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 116620

NiRioScanInterface DMA Channel is listed when using Scan Interface along with LabVIEW FPGA Host Interface

When using Scan Inteface along with LabVIEW FPGA Host Interface, DMA FIFO method nodes display internal Scan Interface DMA Channels

Workaround—N/A


Date Added—01/15/2009
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4K1CDCMA

DMA from the host to the FPGA target on the cRIO-9002/9004

DMA is not supported from the host to the FPGA target on the cRIO-9002/9004.

LabVIEW returns an error if you try to output DMA from the cRIO-9002/9004.

Workaround—N/A

Date Added—01/15/2009
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132979

Reading Empty Target to Host DMA FIFO with Timeout Set to Zero Gradually Starves CPU in built LabVIEW RT executables on cRIO targets

In built LabVIEW RT applications on cRIO, if a Target to Host DMA FIFO read executes with a timeout of zero and the FIFO is empty it will require extra processing that increases the CPU usage on the controller.

Workaround— Read zero elements to find elements remaining, instead of using a zero timeout

Date Added—01/15/2009
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131654

Cannot Deploy Scan Interface Modules or IO Variables  with Non-ASCII Characters

When deploying Scan Interface Modules or IO Variables with Non-ASCII characters such as Chinese or Japanese Characters it will report that the Deployment Completed with Errors.

Workaround— Rename any Scan Interface Modules or IO Variables using Alpha Numeric  Characters.

Date Added—01/15/2009
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135570

Abort and Reset Methods do not execute on incoming error

If an error is passed to either the Abort or Reset Methods, they will not execute and the error will be passed through

 Workaround---Check, report, and clear errors manually in any error clusters wired to an Abort or Reset; otherwise, do not pass error clusters to these methods

Date Added—2/13/09
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Known Issues with NI-RIO 3.3.0 and LabVIEW 8.5.x

4K1CDCMA

DMA from the host to the FPGA target on the cRIO-9002/9004

DMA is not supported from the host to the FPGA target on the cRIO-9002/9004.

LabVIEW returns an error if you try to output DMA from the cRIO-9002/9004.

Workaround—N/A

Date Added—01/15/2009
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 --

VIs that use the calibration API should be modified to use the RIO Device I/O control

Applications from versions of LabVIEW older than 8.5.x that use 783XR Calibration - Open FPGA VI Reference.vi should be updated to use the RIO Device I/O control instead of the VISA I/O control.

Workaround—N/A

Date Added—01/15/2009
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 40243

FPGA code generation into an existing host VI is very slow in FPGA Wizard

If you use the FPGA Wizard to generate code, open the host VI, then generate code into the same VI, the code generation goes very slowly.

Workaround—N/A

Date Added—01/15/2009
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- -

Large configuration files load slowly in FPGA Wizard

Opening a large FPGA Wizard configuration file can take several minutes.

Workaround—N/A

Date Added—01/15/2009
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 --

Maximum Timed I/O rate value is 70 kHz in FPGA Wizard generated code

The maximum rate you can set for the Single Point Timed I/O timing engine on the Single Point Timed configuration page is 70 kHz. The maximum rate achievable varies with different hardware devices.

Workaround—N/A

Date Added—01/15/2009
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 --

Selecting external clock requires external clock source with FPGA Wizard

If you select External for the Clock Type on the Single Point Timed or Buffered DMA Input configuration page and you do not have an external clock source connected, LabVIEW appears to hang when you run the generated host VI. Press the Global Stop button to stop the VI or add an external clock source to resume running the VI.

Workaround—N/A

Date Added—01/15/2009
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114569

NI-RIO 3.2.1 does not install support for the NI 987x serial modules for LabVIEW 8.5.x

For serial module support in LabVIEW 8.5 download and install the C-Series Serial Software  installer.  NI-RIO 3.2.1 will install support for the NI 987x serial modules for LabVIEW 8.6.x.

 Workaround—Install C-Series Serial Software from the installer linked above.

Date Added—01/15/2009
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Known Issues with NI-RIO 3.3.0 and LabVIEW 8.2.x

 4G3AED20

FPGA I/O Property Node returns wrong value for Module Model Code of NI 9217 module

The FPGA I/O Property Node returns the value 9217, which is the Product ID, not the Module Model Code, of the NI 9217. The Module Model Code is 0x712B.

Workaround—Look for 9217 in applications looking for the Product ID in LabVIEW 8.2.x

Date Added—01/15/2008
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 4DAEDMLX

Read/Write Controls execute more slowly after upgrade to NI-RIO 2.4.1 or later

Read/Write Control now uses a Call Library Function Node to call the RIO driver. The Call Library Function Node executes additional code if debugging is enabled. To restore the performance to the original level, you must disable debugging in any VIs that contain Read/Write Controls.

 Workaround— You can disable debugging in a VI by going to File»VI Properties»Execution and unchecking Allow debugging. 

Date Added—01/15/2009
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 4K1CDCMA

DMA from the host to the FPGA target on the cRIO-9002/9004

DMA is not supported from the host to the FPGA target on the cRIO-9002/9004.

LabVIEW returns an error if you try to output DMA from the cRIO-9002/9004.

Workaround—N/A

Date Added—01/15/2009
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 3VKDOURY

DMA in parallel While Loops

If you use DMA in parallel While Loops either on the cRIO-9002/9004 or while accessing the FPGA target across a network, one of the While Loops might hang while the other executes.

 Workaround—N/A

Date Added—01/15/2009
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Glossary of Terms

 

  • Bug ID - When an issue is reported to NI, you may be given this ID or find it on ni.com.  You may also find IDs posted by NI on the discussion forums or in KnowledgeBase articles.
  • Legacy ID – An older issue ID that refers to the same issue.  You may instead find this issue ID in older known issues documents.
  • Description - A few sentences which describe the problem. The brief description given does not necessarily describe the problem in full detail.
  • Workaround - Possible ways to work around the problem.
  • Reported Version - The earliest version in which the issue was reported.
  • Resolved Version - Version in which the issue was resolved or was no longer applicable. "N/A" indicates that the issue has not been resolved.
  • Date Added - The date the issue was added to the document (not the reported date).