MP-581 and Tridium AX

[ControlY0urMind]

I'm having some problems with a Trane MP581's lon communication with a JACE. For some reason, I keep getting send failures when I try to upload or quik learn it. The points are constantly cycling between fault and ok. The device never goes yellow and shows down, but in a verify report, it says the device is not communicating.

My workbench and the JACE match as far as modules go, so I've ruled out some type of issue from that.

I've checked the whole lon bus, and this field bus is as close to emaculate as you can get so I'm really leaning away from it being a physical network issue.

There are 22 devices on this network and this one particular controller is the only problem child. 3 of those 22 devices are MP581's with the exact setup as the one in question.

Has anyone had a similar issue they were able to work through?

[Doug-e-fresh]

Was the MP already on another LON system and you are trying to learn the bindings? If the MP was bound to another device that is not in your database,(i.e. BCU) the quick learn will fail. If not try commisioning it again. Try installing the the trane lonworks jar file on your JACE and workbench if you have not already. If all else fails, delete the object from your database and start over.

[scrooloose]

Flash the MP580 to the latest firmware, 4.0.8 or 4.0.9 cant remember which is newest.

[Doug-e-fresh]

Flash the MP580 to the latest firmware, 4.0.8 or 4.0.9 cant remember which is newest.

Your assuming he has Rover and knows how to use it. If ControlY0urMind has Rover, he will need to upload all of the programs out of the contoller. The last time I upgraded a controller to the latest firmware it scrambled the program. I was glad I made a backup of all the programs in the unit.

[ControlY0urMind]

Thanks fellas. Yeah I have Rover and am experienced with it, I just wanted to rule out anything with Tridium first. I'll check out the firmware version and see what its looking like.

Preciate it.

[willf650]

I've never had issues like exactly like your talking about with any version of MP firmware yet but have noticed if you strip out some of the super long UNVTs out of the dynamic device it helps some with some of the errors you see in the console. There have also been a couple version of the Jace lon driver that I had to roll back to a previous version to get it to commision a 580. Haven't noticed tjat problem with 3.5.24 but can't say for certain about 3.5.25 or 3.5.34 as I havn't used that builds with a 580. I assume you are using some flavor of 3.5. From what I've seen in the past I wouldn't rule out AX as of yet but updating the firmware in the 580 is a direction to go that won't hurt you.

[ControlY0urMind]

Upon further investigation, I have found on the remote display for the controller in question that it shows as "unconfigured". I'm pretty certain this is my problem. This particular customer's standard is that no devices are commissioned in Tridium, so I have simply discovered and added all of the devices and unfortunately, this particular JACE is running 3.3.

I'm going to get one of their techs to take care of it on the Trane side to get it back to a configured state and hopefully that will clear it up.

Thanks for all of the advice fellas, I appreciate it.

[CountryBumpkin]

Did you make the LonNetwork in your jace "Always in zero length domain"?

[willf650]

I'm think 3.3 was the version I had issues wih. It was the first release that had the always zero length domain feature. If 3.3 was the release with that feature I had to roll it back to 3.2

[ControlY0urMind]

I'll have to look but I'm pretty sure the Lon network is at a 0 length. I have 3 other MP581s on that network that show data perfectly and have no problems at all.

[CountryBumpkin]

If you do not have "Always in zero length domain" enabled you will not be able to see the MP581 in rover after you bring it into Niagara, now I do not know if having it disabled will cause issues with quick learn because I have never tried to quick learn one with it disabled but I know I have successfully done quick learn with it enabled so if it is not enabled you might want to try that. On a side note I have been successful in discovering a MP581 or any other Trane device without zero length domain enabled but was not able to see them in rover afterwards.

[CountryBumpkin]

Sorry Control, we must have posted at the same time...

[willf650]

When I was talking about the zero length domain feature I meant the first build of Tridium that had that feature had an issue with MP580's. To get around that issue I had to roll back my lon driver to the previous release of Tridium. Nothing to do with the discovering in Rover.

Rover can be set to discover on any domain and has been like that for a couple years.