Counter/Timer

cancel
Showing results for 
Search instead for 
Did you mean: 

Energy meter Lovato

Hello, I'm a Labview beginner. I need to acquire the pulse output signal from a Lovato DME D300 T2 device with a USB-6001. What is possible and how is the wiring done?
I thank in advance whoever wants to answer.

0 Kudos
Message 1 of 6
(2,057 Views)

You have to use the counter resource on PFI0/1 to count the pulses from your energy meter.

 

santo_13_0-1631626123686.png

 

I would need to look into your energy meter to suggest the right connection. Maybe someone would else reply before me if they get the time.

 

Santhosh
Soliton Technologies

New to the forum? Please read community guidelines and how to ask smart questions

Only two ways to appreciate someone who spent their free time to reply/answer your question - give them Kudos or mark their reply as the answer/solution.

Finding it hard to source NI hardware? Try NI Trading Post
0 Kudos
Message 2 of 6
(2,025 Views)

If it can be useful at this link you can find the energy meter manual:

 

https://www.lovatoelectric.com/Download/I332IGB09_12.pdf

0 Kudos
Message 3 of 6
(2,021 Views)

Not easy though, below are the issues,

  • USB 6001 inputs are only 5V tolerant
  • Your energy meter has two outputs, but they require 10-30V for operation
    santo_13_0-1631639153485.png

     

Do you have an external 12V DC supply that you can use here and a bunch of resistors?

 

Santhosh
Soliton Technologies

New to the forum? Please read community guidelines and how to ask smart questions

Only two ways to appreciate someone who spent their free time to reply/answer your question - give them Kudos or mark their reply as the answer/solution.

Finding it hard to source NI hardware? Try NI Trading Post
0 Kudos
Message 4 of 6
(2,009 Views)

Your device states 10-30V for operation but worth a try for the below connection

santo_13_0-1631639573155.png

 

Using the output in PNP configuration, use NI MAX test panel to monitor pulse count,

santo_13_1-1631639706722.png

santo_13_2-1631639755504.png

 

 

 

Santhosh
Soliton Technologies

New to the forum? Please read community guidelines and how to ask smart questions

Only two ways to appreciate someone who spent their free time to reply/answer your question - give them Kudos or mark their reply as the answer/solution.

Finding it hard to source NI hardware? Try NI Trading Post
Message 5 of 6
(2,008 Views)

Thank you, you are very kind. I will try this setup by running the 5V energy meter. If this does not work, an external power supply with resistors must be provided. I ask you the kindness to post the scheme of this solution as well. Thanks

0 Kudos
Message 6 of 6
(1,992 Views)