12-01-2010 08:54 AM
Hello all,
I am a mechanincal engineering student at Milwaukee School of Engineering. I am building up a dyno system to test small engines. We are going to do our data aquisition and control with LabView. Our dyno is a 20 HP electric motor coupled to an Allen Bradely Powerflex 755 motor drive.
How can we establish communication between the drive and LabView? The drive communicates using either Allen Bradely's Eithernet/IP Protocal, rs-232, ect, or analog inputs and outputs. Ideally we would use the eithernet connection. Has anybody written any LabView code to comunicate with Eithernet/IP? If not where should we start?
Thanks in advance for your help!
Adam
12-01-2010 11:16 AM
@Adam L wrote:
How can we establish communication between the drive and LabView? The drive communicates using either Allen Bradely's Eithernet/IP Protocal, rs-232, ect, or analog inputs and outputs. Ideally we would use the eithernet connection. Has anybody written any LabView code to comunicate with Eithernet/IP? If not where should we start?
You can use VISA to read and write to your device over Ethernet.
Can you see your device in MAX?
Have you read this?
http://zone.ni.com/devzone/cda/tut/p/id/3325
Omar
12-01-2010 11:55 AM
Thanks for the link! I am reading up right now.
Adam
12-01-2010 12:14 PM
OK. So far I have been able to successfully "ping" the motor drive.
I am having trouble creating a new device. When I go to create a new device the only option in the wizzard I have to choose from is "Devices and Interfaces"
12-01-2010 12:55 PM
Could there be a module that i am missing or some kind of software error that is preventing me from being able to successfully create this VISA device?
Adam
12-01-2010 01:15 PM
In MAX, do you not see the "Create New..." options from a right clik on "Device and Interfaces" or the "Create New..." button at the top?
12-01-2010 01:42 PM
Yes. I see create new, I click it, and the next dialog box doesn't seem to be working.
12-01-2010 01:57 PM - edited 12-01-2010 02:04 PM
Can you post a PNG of the dialog box that doesn't seem to be working?
Something like this?
12-01-2010 07:55 PM
Good idea. We are updating some of the software. If that doesn't fix the problem, I'll post a picture tomorrow.
Thanks again. I appreciate the help.
I like this forum. I get a kick out of the fact that the newbie's icon is a car with a really big spoiler.
12-02-2010 02:13 PM
I was able to create a VISA TCP/IP resource for the Powerflex. It doen't seem like its working though. When I click "open VISA test pannel" I get this error message:
Any idea what might cause this?
Adam