NI 9514 in Scan Interface Mode (architecture questions)

[paubin]

Hi,

I would like to confirm that I understood correctly how the NI 9514 work. I'm used to build axis that have a trajectory and a supervisory code on the realtime side and an FPGA that do the spline / PID, etc.

Using the NI 9514 is quite different, I don't have a FPGA to build, from what I understood, the FPGA is on the c-series 9514.

Now, where is the realtime part for the trajectory generator and supervisory control and at what speed is its timed loop that do that TG? 

I have a critical application and I want a low (2-4ms) for to send setpoints. I don't see that code at all so I can't confirm.

Let me know please.That will help me.

Patrick

[ARVega]

With what hardware is your NI-9514 going to interface with? 

Have you seen the getting started guide of that device?

Here is an example of the getting started guide: http://www.ni.com/pdf/manuals/375516e.pdf

These documents usually come with examples and screenshots of what you can expect to see on your project.

[paubin]

Hi,

My drive is already hooked and it is working. I'm using a CVS 1458RT and an EtherCAT Chassis 9144. The 9514 is on the EtherCAT chassis. I hook up an Allen Bradley Kinetix 300 drive to it.

My question was more related to the architecture. I know we can change the FPGA loop rate, but I don't see where is the cycle time for trajectory generator control loop and where is the code? Everything is a black box compare to what I'm used to work with.