[Acc24E3 Encoder Loss for Sinusoidal encoders]

We've verified the encoder signals using external equipment (as I mentioned in the original post). They aren't attenuating with velocity (within the encoder specification). The motor settings we're using for encoder loss detection are the defaults for a Gate3 device:

 

pEncLoss = Gate3[].Chan[].SosError.a

EncLossBit = 31

EncLossLevel = 1

EncLossLimit = 0

 

The board is a two channel type 604002 with options $41 and $50. The part revision is 7 and part type 1.

 

Is there any filtering on the board that might roll off the signals?

 

Mick

[Acc24E3 Encoder Loss for Sinusoidal encoders]

We seem to be having difficulty with the encoder loss detection of a sinusoidal encoder connected to an ACC24E3. The problem is related to velocity.

 

We've verified the signals using an oscilloscope. With loss detection disabled, the servo is fine at velocities above which encoder loss is reported.

 

I've looked for performance information in the ACC24E3 hardware manual, but can find none. Is this data available?

 

Any thoughts would be appreciated.

 

Mick

[IDE Improvements / Wishlist]

And it shouldn't alter file attributes.

 

Mick

 

First of all, let me say that I have been very happy with the Delta Tau IDE (for the most part), and I am excited to see the constant updates and improvements released by DT.

 

Unfortunately, after using Visual Studio for several years I have become spoiled with certain features. Here are some features that I hope DT can look at adding to the IDE in the future:

 

1) Auto-indenting brackets

 

2) Complete Intellisense (i.e. local/global variables, structures, and functions should be auto-recognized and added to the Intellisense list)

 

3) Integrated Debugger (obviously this won't work for the real-time threads but it would be great if the Visual Studio debugger could be attached to background C applications)

 

4) The user should be able to delete IDE folders that aren't being used (CPLCs, Script, Realtime Routines, etc)

 

5) Libraries should be callable from both realtime (RTI PLCs, User Phase, etc) and non-realtime threads (Background Capps, etc)

 

6) Enable the Visual Studio Refactoring menu (Maybe limited to renaming variables and functions?)

 

7) This isn't a feature, but I think that the Global Includes folder should be moved up a level (not a big deal, but it makes more sense to me because the .pmh files can be used for CApps, CPLCs, Script PLCs, etc).

 

Obviously some of these items are more difficult than others to implement. However, I think these improvements would go a long way to making the IDE much more user-friendly!

 

-Steven

 

 

[IDE changes attributes of project files]

Daves,

We do save all the files, before downloading or compiling. Since our project system and the IDE is based on the visual studio, I am following the visual studio rule, in which all the files get saved before getting compiled or downloaded. We can take a look at the possibility of only saving the files that have been modified to take care of your issue. I will add your post to our list of enhancements.

 

Dro Ghazarian

 

Surely only unsaved files need to be saved before a compile/download. I've used Visual Studio for many years, and it's never complained about read-only files when compiling.

 

Mick

[IDE changes attributes of project files]

Yes, I consider this a major issue. We use Visual Sourcesafe for version control, and it relies on the read-only attribute.

 

Mick

 

Mick,

The reason for changing the attributes of the files and folders in the IDE is that, some of the properties of the project and some of the files need to be modified for the backward compatibility reasons and if the files and the folders are read only, I won't be able to do this. If this is a major issue for you, I can certainly take a look at my code and see if it is possible to minimize the changes to the files and folders attribute.

 

Dro Ghazarian

 

Why does the September release IDE remove the read-only attribute from files in the solution/project?

 

It may be convenient for the IDE, but these are my files, and I should be able to decide whether or not they are writable.

 

Mick

 

 

 

 

[IDE changes attributes of project files]

Why does the September release IDE remove the read-only attribute from files in the solution/project?

 

It may be convenient for the IDE, but these are my files, and I should be able to decide whether or not they are writable.

 

Mick

[Acc72e structure members]

I'm not sure which header file is really important. Perhaps I shouldn't have mentioned it.

My post was really to ask for the missing task params, task state and task info areas in the DPM of the Hilscher card to be accessible using the Acc72E[] Structure e.g.

 

Acc72E[n].Task2State[0]

 

mjm

[Acc72e structure members]

Looking at the Acc72e structure members accessible from script programs, there seems to be missing members for task params, task state and task info.

 

Looking in the header file where this structure is defined, these items are covered by a member called unused2.

 

Can these items be uncovered in a future release.

 

I can set up ptr variables to point to the missing data, but I have to do a considerable amount of manipulation to unpack the data I require, and I'm not sure it's desirable to use a mixture of access methods to this hardware.

 

mjm