Controlling a Hitachi L100 VFD in Labview

[Gzimmer]

I found Hitachi makes their own controller software ProDrive, but I'd like to keep as much of the program inside of labview as possible. I've looked into using the Modbus library a bit, but I can't find any good place to start learning how to use it.

Also, Modbus talks about using RJ45 as a controlling interface and my L100 has a RJ45 port, but I've read that Hitachi uses a proprietary protocol for control, would I be able to avoid getting a RJ45 to USB connector by using Modbus?

Thanks,

Gary

[JVP]

Hello,

   Could you tell me what hatachi device you are using?

Jig P

[Gzimmer]

I am using a  Hitachi L100 VFD.

[JVP]

Hi,

   I found a link that may be of use to you. This is an external link and doesnt have any relations to National Instruments. However, this may help you in your project.

http://ask.metafilter.com/182561/Controlling-a-VFD-in-Labview

Jig P

[Gzimmer]

Check the post date. And the original poster's name. That's my post...

[JVP]

Hi,

   Sorry about the eairler post. I was reading through the Hitachi L100 Manual. My suggestions would be to go with the RS232/422 converter (you may need a USB to RS232). Just because you want to find out how to communicate with the device.

Jig P