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C
cnuga1-Visitor
1-Visitor
October 17, 2018
Question

Controlling FUJI VFD via Thingworx

  • October 17, 2018
  • 1 reply
  • 5148 views

I am trying to figure out how to control Fuji Variable Frequency Drive using Thingworx Industrial Connectivity.  The VFD uses Modbus protocol. Is there an example or guide I can follow?

1 reply

R
RS_120487545-Regular Member
5-Regular Member
October 24, 2018

I can help you! Modbus is an open protocol, so there is no document that is just fo rthe VFD, but I may be able to help. A few questions: Do you know if the protocol is Modbus RTU "serial", or is the protocol Modbus TCP? Do you happen to know the Slave node number configured in the VFD? Do you also have a list of Modbus Memory addresses, for this device?

 

Rob

C
cnuga1-VisitorAuthor
1-Visitor
October 26, 2018

I believe the protocol is Modbus RTU, the following is the guide https://americas.fujielectric.com/files/RS-485_Users_Manual_24A7-E-0082.pdf

 

I plan to use a connector which connect RJ45 to USB, how do I connect it to Thingwork?

R
RS_120487545-Regular Member
5-Regular Member
October 26, 2018

The RJ45 to usb cable may just use pass through or what is sometimes called TCP socket mode. Is the USB side plugging into the VFD, then you are going plug the RJ45 into a switch? If so you would use Ethernet encapsulation with the Modbus RTU serial driver and point to the IP and port configured in the cable.

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