Reset Redundant I/O cards from Display (DV Operate)

Is there a way to "Clear Saved Fault Information" Programmatically?

I have several redundant I/O cards that need to be reset due following scheduled maintenance power outages.

I was thinking/hoping that I could make a display for the redundant cards in order to send the "Clear Saved Fault Information" to the I/O card instead of having to use Diagnostics.
Only when both of the following conditions exist:
1.) PStatus = "Possible Field Problem ....... Need To Clear Errors To Be Able to Switch" 
2.) POInteg = "BAD"

Both of these parameters are not available to DV Operate, so I'm sure that I have to create a module to connect these, but I am not sure what the name of the Parameter to set/clear the Fault.

Is there a book that shows ALL connectable/settable parameters?

Any help is much appreciated.

1 Reply

  • The Clear Saved Fault information command is issued from a drop down menu and is not available as a parameter path. I don't know if there is a way to programmatically issue this command from Operate or from a controller.

    I can confirm that the POInteg and PStatus parameter paths as shown in Diagnostics do not work from workstations, including Watchit application:
    - CNTRL_NAME/IO1/C05/POINTEG
    - CNTRL_NAME/IO1/C05/PSTATUS

    I also created a module with Dynamic reference and configured the $REF to these paths. The controller also cannot read these parameters.

    As a test, my Control Module reference can read CNTRL_NAME/IO1/C05/STATUS, which is also read from Watchit in the workstation, confirming the syntax and path are correct. But with PSTATUS and POINTEG, the system returns String Read Failure RT_NOT_CONFIGURED.

    Conclusion: These parameters are not available to the Unsolicited Communications layer. The Diagnostics information is getting this data with a different mechanism.

    Suggest you accept that Diagnostics is the tool to use for the reset of these conditions.

    Andre Dicaire