I am looking for some information on ELAN protocol for Siemens analyzers and also some information on AK protocol for California Analytical Analyzers. Mainly I need a starting point to communicate with these devices for labview.

[DavidBoyd]

The NI USB-485/1 has a 9-pin D connector with a standardized pinout (you can find the pin listings either in the documentation that came with the device, or online).  Here's a handy NI Serial Quick Reference chart.

The ULTRAMAT has an RS-485 connector as well, if it's like the OXYMAT, it's also a nine-pin D.  The ULTRAMAT user manual should include that pinout.

No, you'll need to make a cable between the two...  May I suggest, get yourself one of these adapters from L-com.  Then it's just a matter of jumpering between some pins (see below) inside an adapter shell.

Even though the NI-Serial driver offers choices between two-wire and four-wire operating modes (and you will set it for two-wire auto mode), the field wiring is not bridged internally for you.  On the NI USB-485, there are four pins labeled TxD+, TxD-, RxD+, and RxD-.  On the ULTRAMAT, which is ONLY two-wire, there is only a single pair of pins, labeled RD/TD+ and RD/TD- (or maybe they use P and N, I think).

You bridge TxD+ and RxD+ together at the NI port, and wire that to the ULTRAMAT RD/TD+ (or P) pin.  You bridge TxD- and RxD- together at the NI port, and wire that to the ULTRAMAT RD/TD- (or N) pin.

Lastly, you connect the ground pins offered at each end.

[karagory2]

Here is a quick copy of my pinout notes; seems to be working fine thus far.

[DavidBoyd]

So, "working fine" = LabVIEW driver code is requesting and receiving measurement data from an ULTRAMAT?

Dave

[karagory2]

Yes, your LabVIEW driver code is requesting and receiving measurement data from the ULTRAMAT.  I will update this post with any pertinent details as I progress with my project.

Thanks for all your help.

Kevin K.

[karagory2]

Here is a quick picture of my pinout notes.

[karagory2]

GND at NI USB-485 should be Pin1 NOT Pin2.  Yes, it did communicate with the incorrect pinout.

[karagory2]

Some additional details to message 97.

Use D0 (hexadecimal) for default Source Address; use 10 (hexadecimal) for Target Address to get CO, and use 11 (hexadecimal) for Target Address to get CO2:

Do not forget to use RS485/Wire2 for RS-485:

[RagMan]

Hi Mr. David Boyd

I too am in need of some examples for communicating with a Siemens FIDAMAT 6 using RS-232 or RS-485. To date I have not even found a command reference manual for FIDAMAT. I read from earlier posts that you have developed a set of VIs for this.

Would you be kind enough to send me these? Thank you! My email is raghu.nmj@gmail.com

Sundaram Raghuraman

Certified LabVIEW Developer

Carmel, INDIANA

[bkaul]

I also am interested in the driver for the CAI 600-series, if it's still available. Thanks in advance!

[bhorn63]

Attached is the library that needs to be installed into LabVIEW for the CAI 600P. You should be able to make your own VI from there, good luck!