help on field point subvi

[Graziano]

Hi!
   If I'm not wrong, in your posts you never mention the complete FieldPoint configuration you have to work with. Can you please provide details of this?!?!?

graziano

[nw]

well thank again for replying

that's the point, i needed a starter, I look up an example of temperature control.vi with field point control, and I thought this might work on turning on and off the heater and fan, but when it comes to configurating the temperature control.vi  im a little confused how to use it to work with my hard wares,,, well it a simple hareware that will run with relays...

as long as it turns on the hardware using thermo couple as an input, and heater as an output,,,, but what module of field point that is low cost can i use,,,thank you in advance,, good day

[Graziano]

Hi
   if I understand right, you does not have, at present, a FieldPoint system on your desk...

   If this is the scenario, you have to look for a controller + I/O modules of different types... I'll check for a configuration.

    First, are you looking for compactFieldPoint or FieldPoint?

   Hope I can help you, have a nice day!

graziano

[nw]

thank you again,,

the example i found was a compact field point,  here is the link  http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=B45EACE3D9CF56A4E034080020E74861 

i wanted to this example to run my hardware,,,but then i was told that i needed a module of some sorts to run my hard ware. i dont know if this is a good example but it  has a relay that will turn on/off a heater,,,,ohhh yeah, thermo couple, which one is a ok to measure simple stuff like my project...also can i use a state machine to from a heater to a fan... will that be possible.. thank you again,,,i appriciated all your help

[RDR]

NW, what are you planning to use to connect the thermocouple, fans, etc to your computer?  Are you using a FieldPoint controller and modules similar to these:

http://sine.ni.com/nips/cds/view/p/lang/en/nid/14873 

http://sine.ni.com/nips/cds/view/p/lang/en/nid/12204 

If you are not using one of these types of controllers, the FieldPoint driver and VIs do not apply.  We need to know what hardware is being used to interface your sensors with the computer.  Cheers!

-Bob

[Ching_F.]

Hello nw,

The example states that the I/O modules it recommends are one [c]FP-TC-120. and a [c]FP-DO-401 module.  In addition to this, you will need to use either a FieldPoint Controller like the one shown by BOB or a compact FieldPoint network interface module.

[Graziano]

Hi!
    I suggest also to look for a DAQ card, you can get a PCI (or USB, to name the most common buses) multifunction acquisition board, but since I'm not practical with termocouple, I don't know what's the right one.

   You can get a Card with PWM generator integrated.

    I'll look for, and report....

   Have a nice day!

graziano

[Graziano]

Hi!
   Since I'm not able to find the right DAQ board for you, I'll show you a complete FieldPoint system that should fulfill for your needs.

   You need all of these to make your project with compactFieldPoint:

   - cFP-2100  (ethernet controller 1149 €)

   - cFP-PWM-520 (PWM module 320 €)

   - cFP-CB-3 (connector base for PWM, 179 €)

   - cFP-TC-120 (Thermocouple module, 409€)

   - cFP-BP-4 (connector base for thermocouple,  339 €)

   As you can see, it is a quite expensive system for a single educational project. 

   If you can't get this system, I suggest you to turn to a DAQ board (find it in ni.com --> products --> Data Acquisition, or sme similar path), and maybe you can consider a Analog Input board and do the signal conditioning yourself (say, as analog electronic  project...).

   Hope this can help...

graziano

Ps.: you can turn also to FieldPoint, but it is an older technology.

[nw]

thank you for all the help,,thank you all,, I am at a tight budget at the moment, and all the advices are great but i cant affort thousand of dollars

my school got  a national instructment  CB 68 LP, I dont know what i can do with this board that will switch energize the relay to turn on / off the fan. I'm just not very good at LabVIEW codes,,,, is there like codes library that i can use? thank you

good day all 🙂

[Ching_F.]

Hello nw,

The CB-68LP is just a connector block.  Alone, it cannot do anything.  It allows you access to the different channels of a DAQ card which you will need to purchase.

You can easily find out more about the National Instruments equipment you already have by visiting www.ni.com and entering the model number (such as CB 68 LP) in the search entry in the top right hand corner.  This will search www.ni.com for any information about that product.