Has anyone had 15c controllers just loose their points configuration in AX? I have several controllers loose the points configuration only, I re-download them and they loose them again in a day....
Type: Posts; User: shovelhead
Has anyone had 15c controllers just loose their points configuration in AX? I have several controllers loose the points configuration only, I re-download them and they loose them again in a day....
I've been to both classes, I think you'll be fine. They didn't go over any controls theory such as how a building works, the go over area control, VAS, chiller plant control and such. Configuration...
It's the binary positioning indicator for the vane are. If you look at the wiring diagram you'll see that it's a switch with a 500 ohm resistor if I remember right. Put a ohm meter on the leads after...
There isn't anything that you can do, the demo license expires every year just like the work bench license does.
If you have a BCU, on the BMTS and the BMTX, the daughter boards are flat for comm4, flat with a cylinder protruding from the board is comm3 isolated and the lon board has the square neuron chip on...
You are exactly right, the SC does not do comm4, a BCU is need fot a gateway. It's pretty bad when their new "cutting edge" system doesn't support their own protocol.
They are talking about variable flow primary and they are nothing new. A chiller has a life capability from the evaporator to the condenser, it's usually around 14 to15 psi, the most efficent pumping...
Did you upload all of the controllers using the upload command under each controller? Did you link manage the controllers?
What version of Summit are you running? You do not have to delete a site before connecting to a different site, summit uses update tags to check for changed data. The first thing that should be...
Remove the cover or open the door, on the right see if there's a seven segment display. If so what's the display doing, a -P means that the database is gone on the BCU. If there's a dash moving up...
Honeywell WEBS has a open and a closed license but you you have to know about the open and closed license and ask as well as pay more for the open. Once the JACE is bought you have to have the owner...
After I unzip my software and go to the setup exe, I also have a serial tunneling install exe. After the installation there is a serial tunneling application placed in my Windows XP control panel to...
Using the ASD driver from Lynxspring. I'm tunneling with XPSI over the net as well as local.
Can I do the recommissioning with hyperterminal? The control is the one line display before the opti-view. It was also set-up with the quick commission using the dip switches.
Yeah, I'm using a JACE and just like klrogers, I write to the point in the elink but the elink doesn't seem to be writing to the chiller. I went into the elink with hyperterminal looking for a way to...
What driver are you trying to tunnel through? I have tunneling working fine for the ASD driver.
I have it in remote.
Has anyone integrated a YS and used the start/stop point YT_S01_PO7 to enable and disable the machine? I can write to the BACnet point but the point will not confirm the write and start the machine....
I'm using the Lynxspring driver, my question is, it appears that the controllers have different write priorities. If I write @def it sometimes appears that the controller ignores the command on...
Did you change the addresses on the VAVs? They were the same on the command modules. The addresses can only be up to 127 also if I remember correctly.
Look at the poll scheduler statistics, what's the dibs bucket doing?
You were right I forgot the "2". If only I could type decently I would be a hellofagood programmer. Most of mu problems end up being typos.
I just put my email in my profile, I thought I had already put it there.
Let me look at the program and I'll try and answer it, you should practice programming the 15c, there's a simulator avaliable online that will attach to the Lonspec software. As for integral, it's...
zigmund, I worked for Trane for 16 years and don't recall ever seeing a comm4 like repeated. These links typically had in the 30's number of devices and up to around 400 feet of wire. It is polarity...
You alreay have the hard part done, you understand HVAC. The rest is learning to use a software program. I own my own company and would not hire anyone who didn't know HVAC, that's a real problem...
You can configure and program the controller with BacStage.
The Niagara Framework is the most versitile and capable on the market. As for easy, that's up to the programmer, the controller can be as easy or complex as desired, and reliability in electronics...
Look, make this a fun, rewarding and learning experience. When I got my first building as a young chiller mechanic about 20 years ago, the building had been abandoned for several years, I had a...
What kind of chillers, centrifugal or recip? Primary/Secondary chilled water loop? Bypass for chilled and condenser water? VFDs on the secondary pumps if primary/secondary loop? VFDs on cooling tower...
I asked the question about a BACnet converter, RS232 to RS485, and I was told by tech support that the RS232 port on a computer did not work with the Niagara Framework. I called after I had tried for...
Yes that's correct. Just add the approiate snvt and connect them, recompile and upload the program. What platform are you integrating to?
Once you get the device in your database, by pushing the service pin in this case, you can commission the device using the device manager. Just remember, if this is a existing and previously...
In LON you have the ability to change the domain length and id, the reason that you can't see the device using discover is that the domian id and length are differant than the one being searched. Lon...
There's not that much on that controller, however there is a XL15c simulator on the net. The easiest way to learn is to use lonspec and not program through a JACE, the JACE is really confusing at...
Hey ReferYankee,
The JACE is java, java script and java are different. I write program objects in pure java not using baja java and they work fine. Niagara has come out with baja java script but I...
What's the problem with the BCU, maybe I can help also, I'm fluent in Tracer.
Check you're email
I sometimes wonder why ControlYOurMind even bothers with the Niagara Framework, he could make a fortune doing 3D graphics. I have him do all my 3D graphics, sometime from pictures that I take of a...
That makes since, that way the resistor current limits. I just always used the higher voltage as positive and the lower as negative. The resistor is a good idea though.
You can also have mode changeover reference and enable/disable the PID loops according to the mode of the ahu.
I've never saw that written anywhere, but that's the way that I've always done it and it works. I like to have a 0 reference potential.
CraziFuzzy! Love the do!
You did what I should have done, you gave both senerios. It really comes down to what the data is for.
I got to thinking about the cv and did some checking, here's a cool website: www.engineeringtoolbox.com
Yeah, I know that it can be done, I did it for log sheets. However if the data is to be displayed live and the machine was equipped, delta P would be good, if not the flow meter is the way to go....
Sounds like the board might bad, the board has it's own processor behind the can and they occasionally go bad. Not very often though. There's nothing much that can be done with the HI.
Hey alcomech,
Continue with the post, I use cv for valve sizing but never understood exactly what it was in mathmatical terms. Also if you have time explain how the cv effects valves, all I go by is...
Good Morning exjci,
I'm calling you out directly because I want to apologize to you in the enviroment that I made the mistake. My sole purpose here is to try and help people when I can and get help...
I hope it didn't take you long to figure out that the vanes were closed when the chiller starts , and you teach classes???? Your're problem is that you are insecure and try to find fault in everyone...
Your right about the calculation, I work on chillers and controls not type, for a major manufactuer.
My point is that if the chiller tonnage is being calculated for chiller service then this...