Topics

1

Open Discussion / Advanced HMI on Linux (Pi)

« on: December 15, 2015, 03:13:34 PM »

Microsoft recently released Net Framework for Linux so I'm wondering if anyone has tried using that to run Advanced HMI on linux, or if that's even a possibility? Advanced HMI + a Pi or other cheap Linux box would be killer! :-)

2

Open Discussion / OPC tag borwser

« on: December 15, 2015, 03:10:07 PM »

Has anybody developed an app or know of any Visual basic or C code that browses an OPC server and shows the tag data in real time?

Thanks

3

Support Questions / Forcing values for simulation/demo/testing

« on: June 15, 2015, 04:28:10 PM »

I would like to be able to test and demo the project without connecting to an OPC server or to be able to overridethe values read from the OPC server (PLC). I would like to be able to show what happens on the screen when the status of a pump or other input changes without having to actually change the value in the OPC server. In pseudo-code something like this:

If DemoMode = ON then
         'read value from checkbox 
         PumpControl1.value = PumpControl1OverrideCheckbox.value
         
Else  'read value from PLC
         PumpControl1.value = OPC_PLCAddress123.value
End If

Is this possible?

4

Support Questions / Controls not refreshing

« on: June 15, 2015, 04:13:05 PM »

When the program starts, the waterpump controls text is initially "INVALID VALUE RETURNED" but then updates once the PLC is read via OPC. However, the "INVALID VALUE RETURNED" text remains in the background. Iv'e tried refreshing the control, the control behind it, and the form.

On a related note, I have several pipe fitting in the form, just for graphics, in front of a bar graph. All of the fittings work fine except 3 which don't re-draw after the bar graph is updated. I can force a refresh but then I get an irritating flicker each timer cycle. In the attached pic, the leftmost elbow is forced to redraw else it would disappear like the other two. I have them all brought all the way forward and the bad all the way back.

Unrelated question- is there a property that sets the pen color for the trend chart?


Thanks!

5

Support Questions / Connecting to OPC server- help!

« on: June 03, 2015, 02:09:30 PM »

I'm new to AdvancedHMI and sort of new to OPC. I'm trying to write a simple app that will read values from an OPC server and display them using a gauge or other control.

Is there a demo or sample application?

I read the OPCDaCom pdf that came with AdvancedHMI but it's not very clear. For example what is it looking for in the  OPCServer, OPCTopic, and PLCAddressValue values and in what format? Any screenshots of typical values?

The OPC server is from http://www.opcsystems.com/

Any help is appreciated!