Creating a Windows Front End to control a servo valve

Forum: Motion Control
1

I have been tasked with writing a Windows front end that enables you to modify parameters and plot a graph of the servo valves performance.
I have worked out how to communicate with the controlled, read and write values, but when I read back the ‘Control Output’, I am not getting the same results as the ‘RMC Tools’ graph.

I am writing the code in C# and have am using a thread timer to read the value.

		Static_Delta_Data.rmc.ReadFFile((int)FileNumber70.fn70StatusAxis0 + axis, Control_Output, RMC_Floats, 0, 1);

I have performed some test and it looks like I am reading values every 3mS, which I know isn’t fast enough.

I just wondered if anyone else has had the same problem and what they did about it.

2

Using the plot area is the typical way to get around this problem. To use the plot area, configure a plot in the RMC with the data you need. You then have two options:

  1. Capture a plot in the RMC. After the motion is complete, upload the captured plot.
  2. Trend data continuously. This is a bit more work.

I recommend reviewing the Reading Plots with a Host Controller help topic and looking at Method 2 and Method 3.

3

Tim,

We have an example of Trending data continuously using C#, see Plot Trending Example in C#