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Locked Re: NX Entry/Exit pairs used in LogixNG do not get put back into logixNG when restarting and reloading the panel. #logixng #entryexit

 

John,

I am surprised that the manual NX process even works. ?NX pairs have to have a consistent direction of travel. ?You have the pairs going both ways which is contrary to block routing logic, which is the basis for SML and NX.

Your SML is manual rather than discovered. ?For NX to work, it needs discovered SML. ?Otherwise it builds temporary SML which might not work as expected.

I suspect that these issues are the cause of the LogixNG behavior.

Here is what I recommend.
  1. Remove the NX pairs.
  2. Remove the SML.
  3. Verify that all of the signal masts are actually attached to the block boundaries. ?Signal mast E7 was not, there might be others.
  4. Auto generate the SML. ?
  5. Verify that the signal mast respond properly to block sensor changes. ?Repeat from 2 until they do.
  6. Add four NX sensors to the next block boundary in the direction of travel, one for each direction. ?For example, add NXW-BLK6 for NXW.
  7. Auto generate the NX pairs. ?

Dave Sand


----- Original message -----
From: John Figie <zephyr9900@...>
Subject: Re: [jmriusers] NX Entry/Exit pairs used in LogixNG do not get put back into logixNG when restarting and reloading the panel. #logixng #entryexit
Date: Wednesday, May 03, 2023 8:09 PM

Dave,

The system console shows no messages when I run the LogixNG to make the NX pair active.

I can, with Logix NG, make the NX pair disabled or enabled, however the Exit Entry "Add Entry Exit Points" window does not indicate Disabled, but the signal goes from held to not held and vice versa.

If I manually make the sensors active, first NXE then NXW for example, then the pair becomes active and the Layout panel show the route as reserved.

I can also use LogixNG to make the pair active or inactive by making the sensors active or inactive like the logixNG shown below:

! A If Then Else, Always execute
? ?? If Entry/exit "NXE (W4) to NXW (E4)" is inactive
? ? ! Then Many
? ? ? ! A1 Set sensor NXE to state Active
? ? ? ! A2 Execute A after 500 milliseconds, Ignore on repeat
? ? ? ? ? ! A Set sensor NXW to state Active
? ! Else Return

When the above LogixNG is executed and the NX pair is inactive, then the "Add Entry Exit Points"? window updates to show the pair as active, the track segments change color to indicate the route is reserved, and the signal for the interlocking changes to Clear.

But when I try to use the Action? Set Entry/Exit "NXE (W4) to NXW (E4)" to Set NX Pair Segment Active / Inactive,
then, I see nothing happen. There is no Console output, The Panel track segments do not change color and the??"Add Entry Exit Points" window does not change indicate the pair is active.?

My Files can be accessed

So I have a workaround, but I don't understand why the Set Entry/Exit "NXE (W4) to NXW (E4)" to Set NX Pair Segment Active / Inactive? does bit work.

Should this be logged as an issue?? Or, am I just not using this the correct way?

Regards,

John
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