Thanks, Kirk, for replying to this. I'd never heard of a "Noxmat" before, and the Siemens E&A site didn't offer any clues as to its serial and TCP/IP interfaces. I wouldn't have guessed that it was a rebranded device.
Just curious, are you still with the engine-testing group at Colo State? Seems like there's been a lot of LabVIEW/ULTRAMAT/combustion-testing activity on this ol' thread since this spring...
TCP/IP should work. I just got the TCP/IP communication working with the NOXMAT 600. So if you have any VIs for, that would be FANTASTIC. If you dont mind, please email it to me at firstname.lastname@example.org.
Yes, Still with CSU Engines & Energy Conversion Lab. Traffic with this thread has pick up alot in the last 6 mo. Just as an FYI the Noxmat 600 uses a different measurment technique than the Ultramat series of analyzers. It uses chemiluminesence to measure nitric oxide(NO) with an internal catalyst to convert nitrogen dioxide to NO to get a complete NOx measurement, while the Ultramat series uses non-dispersive infrared technique for CO,CO2, & NO.
We've just gotten a California Analytical Insturments 650 Noxygen analyzer, and I'm trying to get Labview to communicate through the TCP/IP Ethernet connection using AK protocol. If you would have any VIs that I could use as an example, I would greatly appreciate it if you could send them to Aaron94322@aol.com. I hope you're still reading this.
I use an ULTRAMAT 23 of SIEMENS, I want to read data of the gas analyser by RS485 protocol. I have a PCI RS 485 of Quatech company. Is it possible to acquire data from the analyser?
Thanks a lot
Yes, an ULTRAMAT 23 using the ELAN protocol can be controlled/monitored using the ELAN VIs I wrote. The Siemens instruments are RS-485 2-wire, so you need to have an RS-485 interface that can operate in 2-wire mode with automatic transmitter control (sometimes documented as 2-wire TxRdy or 2-wire TxAuto; the transmitter is turned on/off with the first/last chars sent; also the receiver is inhibited during this time to avoid reception of transmitted chars). I am not familiar with the Quatech board, but hopefully there is a comm driver option to make the port behave this way. In other respects the interface is just like any RS-232 port. If the Quatech interface does not do this, there are many excellent NI interfaces for RS-485.
What version of LabVIEW are you using? Also, provide me with an email address (you can reply privately, check my profile) so I can send a zip archive of the VIs.
I sent you a zip via private email. Please confirm that you got it OK.
I want to communicate with my ultramat 23 with RS485 and ELAN protocol. I have a rs485-usb wire, hope it's ok. Can you help me?
Can you send me your vi ? I would be very usefull for me.
Edit : i use labview 8.6
Thanks you in advance.
I replied via private email with a zip attachment of the driver files - oops, no subject line on the email. Let me know that you have received the archive, and it is always good to receive feedback.