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Carl-

Can I still say welcome to the board if you've been registered for 3 1/2 years? Heck at three posts I think it's still warranted- Welcome!

As for this thread, I hope you realize that it...

I run into these a lot, but only in places where there is no running water.

A urinal with no way to flush it is a very smelly thing. But if you dump ice in it a few times a day it seems to work...

The higher the capacitance, the harder it is to drive the wire from one voltage level to another. This leads to issues at higher baud rates and on networks that have a lot of controllers.

Some...

It is being claimed that the ROI for solar is now 3 to 4 years. As energy storage options like fuel cells come down in price and photovoltaic efficiencies rise above 20% this could easily drop to a...

Can we at least all agree that given the option we'd rather buy something that was made in the USA?

If there's a union and a non union part that are both American made then each one of us already...

I can add a few thoughts that are specific to the BACnet devices.

In BACnet there are two types of devices, masters and slaves. You can easily tell which is which because a master will boot up...

As this story unfolds, it certainly seems as though the one who committed treason is none other than Obama himself: ...

Is it just me, or do any of the rest of you feel that the person who leaked the Stuxnet details to the New York Times should be hanged for treason?

There are rumors that the illegal leak came...

I'd prefer to attach a hub between the FX and the network and then attach your laptop to the same hub. That way wireshark will show you all of the packets going to and from the FX.

As for...

Bandit-

In general you can assume that all controllers on a BAS network have their own programming logic, their own alarming and their own scheduling. They know what to do, how to do it and when...

What is the underlying problem you are trying to fix? Have you looked at the network communications, or are you shooting from the hip?

You will see an improvement in throughput if you bump up...

I believe that chiller talks the protocol "Yorktalk." It is my understanding that it can be asked questions or given commands, but it cannot initiate the conversation. If you do not see any network...

I don't know. They sold off York some time ago and I haven't seen them around this industry much since...

http://www.borgwarner.com/

:grin2:

You're absolutely correct. Running twisted pair (MS/TP) to each unit is still the norm for good reason.

:-)

Agreed 100%. Just make sure they install BACnet & or Lon so you have options. (And Modbus as an integratable option)

I think the bigger issue is pretending that BACnet needs some supervisor. I'm still curious as to who originally started that lie. (And why)

Well they have a track record of doing well with acquisitions.

Didn't they only pay something like 50k to buy Tridium? That purchase certainly paid off...

In context, DCVoltz's comments weren't meant to indicate anything more than exasperation at the fact that this issue is still ongoing. He clearly has the tools and has been providing the...

In my opinion, Match Game was the best game show ever. When Richard Dawson, Betty White, Brett Somers, Charles Nelson Reilly & Gene Rayburn were on the show riffing off of each other it was both...

Paulir-

If these chillers speak modbus natively and you're having a hard time getting the modbus gateways to work, would it be possible to pull them into the front end as modbus devices?

I...

Bill has indicated that you need to put the program in place for your IO to show up. But once that has happened, you can still run your checks.

Inputs are simple, putting them out of service...

You too.

:cheers:

When it comes to having either a hub or a switch in your diagnostics bag- always choose the hub. Hubs pass all data along, so you are able to view traffic that isn't necessarily even going to or...

You're thinking about it backwards. A "stalled" processor is unable to hold off the watchdog circuit.

I just came across this: http://www.fieldserver.com/docs/pdf/ENOTE0084-ProtoCessor_Diagnostics_Worksheet.pdf

It's revision 3 of a pre-formatted worksheet used only for describing/reporting bugs...

I'm with you here. There is no room for people "bashing" a brand. That is an emotional response, it's often subjective and in the end it isn't all that helpful.

But warning others about specific...

Gateways have twice as many chances to drop the ball in any given transaction because they need to be fluent in 2 languages at the same time.

I think the fact that so many poorly implemented...

Your link doesn't work for me. You linked to page 5 of this thread, but as there aren't yet 200 posts, I don't see a 5th page...

If you want to reference a single post you can always do that...

I'm sorry to hear it's a hardware problem and not software. That means it'll be a bigger pain in the rear for everyone involved.

Please let us know if/when they get this issue resolved.

AI's and AO's can have "Resolution" but it is optional.

BI's, BO's and BV's can have "Active Text" and "Inactive Text" but it is optional.

"Segmentation Supported" is a required property of the...

Agreed. I have heard a lot about Raspberry PI since that post. But I haven't played with one of those yet & have no first-hand experience.

Let us know more when you get back to it.

On the surface it sounds like a bug in the modbus gateway device, not a design constraint and certainly not a jace issue. I'm guessing that a workaround document would take as much effort to produce...

Agreed. It sounds like the gateway device is not able to handle networks running at full speed. Although it's pretty clear that it's the questions per minute and not the baud rate that is swamping...

I know the industry moves quickly and all, but just how many devices have "become a reality" in the three days since the article was written???

:whistle:

Then this appears to be an Envision-specific question. I'll bow out now and let the Envision experts suggest how to update it to suit your needs.

:cheers:

Are all devices linked to IP? (Either directly or via MS/TP to IP routers?)

The whole problem is that the term "interoperability" is used differently by just about everyone.

As some often point out, some lowly application specific controllers may not have the ability to...

You are of course correct. But I still think that googling the term "baja java" will give him the answers he's looking for.

Tridium uses a custom variant of Java called Building Automation Java Architecture or "Baja."

I believe that a quick search for "Baja Java" will bring up a lot of information about where it...

Yet another interesting foray into automating computer-human interaction:

http://www.pcworld.com/article/255124/disney_technology_turns_everything_into_a_touch_device.html

I'd love to see this...

There is truth to your statement.

If a product doesn't support a service you need, then you may have to use a more basic service or a less basic controller.

Some support COV, all others require...

Would you be offended if I summed up your post as: In BACnet, there is no hard requirement of interoperability of commissioning tools, just interoperability between controllers?

As a real-world...

Ok, I'll rescind my offer to help.

And if a product had a bug in it, then it had a bug in it. Was that application specific, or did it have something to do with BACnet communications in some...

Please post the specifics. I'm sure a number of us would be wiling to determine what is set up wrong.

And you mine :cheers:

Snvts aren't that different a concept than the BACnet approach of sharing data. There are 12 types of "primitive" data types in BACnet just as there are 12 snvt types in...

BACnet is a protocol. One controller can use that protocol to ask questions about points on another BACnet controller. In addition, they can send data to each other as needed. What that data is...

The answer is that the difference is who owns the test lab that runs the test scripts.

Good post. :cheers:

Questioned on my statements? Which statement?

You clearly don't understand what I said in post 27, where can this discussion go now that I realize your "limitations?"

I have reread your last post three times and I can't seem to read it in any way that doesn't make you out to be some sort of ass.

How do you take a comment saying that both test labs (those that...