FP-1001, FP-RTD-122, 3-wire thermistor

[wattss]

Hi,

i have FP-1001, FP-RTD-122, both connected together, and wired 3-wire thermistor on it (inputs 3,4,20, properly)

I want to measure temperature. I have RS485-RS232 converter. Using VISA test panel, sending something to port makes FP-1001 blink NETWORK light.

Opening DAQ in LabVew... going "aquire signals -> analog signals -> temperature", and everyone i pick says i have "no supported devices".

If there's a way to: how can i solve that? Do i 300% need FP-1000? 😕

[Simon_T · Accepted solution]

Hi wattss,

Using filedpoint is simple, however it is not as simple as using our more modern devices.

The FP-1001 can be connected directly to a PC with RS485, as seen in the FP-1001 datasheet here:

http://www.ni.com/pdf/products/us/4dio541_543.pdf

1. You need to see the RS485 port in MAX. We do have problems with low-end serial adapters from time to time, please use NI products, such as the NI USB-485, they implement full hardware support for the serial port.

2. Set up the hardware as described in the FP-1000/1001 FieldPoint Quick Start Guide.

3. You will need the FieldPoint drivers installed.

4. You will need to Add the FieldPoint to MAX: right-click and add a "FieldPoint Serial" to the "My System / Devices and Interfaces" by discovering the serial port.

5. You will need to configure the Thermistor nodes on the FP-RTD-122 (just explore the menus / toolbars / right-click items under the FP-1001 node under Devices and Interfaces in MAX).

6. At this point you sohould be able to see the FeildPoint device in MAX under the "Data Neighborhood" - this is where you can actually see the data from the FP-1001, and test if it works.

7. You will need to "Save" the hardware configuration you created to the FP-1001 itself: Click "Save" under "Devices and Interfaces". You should also save the final configuration as an .iak file (from "Data Neighborhood")

Now, you can start using the FP-1001 from LabVIEW.

It has been some time since I used FP, so you might have to get creative with some of the steps above.

Please let me know if you need further help.

Best Regartds,

Tamás Simon

[wattss]

"1. You need to see the RS485 port in MAX. We do have problems with low-end serial adapters from time to time, please use NI products, such as the NI USB-485, they implement full hardware support for the serial port."

As i have also mitsubishi's PLC at home, i have FX-485PC-IF adapter (RS232-RS485), and using with mitsubishi's PLCs, i had no faults yet. Also, using Visa TP (test panel) - it seems to send commands properly.

I've installed drivers now, and will try it later today - currently its 00.15AM here - and will report up later.

[wattss]

Hi, I'm back,

I've managed to see data in MAX.

As it's visibile in attachment, there is no supported module in LabView (2011, v11.0).

What am i doing wrong? I've opened new VI, left-clicked Block diagram, input -> DAQ Assist.

I place it on block diagram, Acquire signals, Analog signals, Temperature, RTD. I click on RTD and then i get "no supported devices found" error/notice.

I get this wether MAX is working behind, collecting data or not, or if its not working. I've saved all configurations in MAX before.

I think i am doing something wrong, but can't find it where.

I'm looking forward to read you soon,

Regards, Erik

[Simon_T]

Hi Erik,

The reason you can not use DAQ assist with FieldPoint is the same why you could not see the FP device in MAX earlier:

FieldPoints do not use the DAQmx driver package.

Fortunalety, you have already installed the FieldPoint drivers, so you should be able to see the FieldPoint palette in LabVIEW:

For further programming help, I recommend searching the NI DeveloperZone for tutorials and the NI Example Finder for example code - most of it is from 2006-2007 (LabVIEW 7), but so is FieldPoint, so you will find something still usefull.

The concept of using the FieldPoint VI-s is very similar to every other rescource handling in LabVIEW - If you have successfully programmed DAQmx before, then I am confident that using FieldPoint will not be a problem.

Best Regards,

Tamás Simon

[wattss]

Hi Simon,

Thanks for fast reply. I was really looking for a "kickstarter" to gain my data from, now everything is running out like charm. App is expanding 🙂

Thanks again for help,

regards, Erik