modbus

[jamridge]

I have a integrated stepper motor + drive + indexer w/ ethernet interface http://www.amci.com/stepper-motor-control/integrated-stepper-motor-control-smd23e.asp. I want to use the modbus libary to control the motor. I am having trouble understanding the libary and establishing a connection. Any help and examples would be helpful.

[DylanC]

Hi jamridge,

Here is a basic overview of using Modbus with LabVIEW:

http://www.ni.com/white-paper/7675/en

Check out the related links a the bottom as well.

Let me know if you have any further questions.

DylanC

[jamridge]

Here is what I am trying to test so far.

Not sure what the port name and number should be for modbus TCP connection. The device is a SMD23E-130 stepper motor with encoder and ethernet interface.

[DylanC]

Hi jamridge,

I could not find a Port specified in the manual of the motor, only the IP which you have correctly configured. I would suggest contacting the manufacturer. There are also example VI's from the library http://sine.ni.com/devzone/cda/epd/p/id/4756 specifically the Modbus Ethernet Example Master you may want to take a look at.

DylanC