Channel Names & No.'s with DWDataReader

Hello, we're trying to create some automation scripts for exporting data from d7d files. This works well so far, using DWDataReader, but many instances of channels have the same name.

When exporting via DeweSoft, there is another column for each channel called "Ch. no" which is prepended to the exported name, making it unique.

E.g. "AI 0/0 / AC Mains_L1"

In DWDataReaderHeader, available fields seem to be only the below, none of which seem to include the above prepended information. Can this be found somewhere, or added?

Unfortunately without that information, or another way to identify the channel names uniquely - this entire thing is fairly useless to us.

class DWChannel(Structure):
    _fields_ =\
    [
        ("index", c_int),
        ("name", c_char * 100),
        ("unit", c_char * 20),
        ("description", c_char * 200),
        ("color", c_uint),
        ("array_size", c_int),
        ("data_type", c_int)
    ]

Hi,

I believe you will not be able to get that same data if it's not defined in the header. You do however have the index property, which is a unique index defined for every channel used by DEWESoft to distinguish between channels.

A definition of the index can be found in the DCOM manual: https://www.dewesoft.com/assets/dcom/dws7_dc_chann...

Let me know if this will work for you.

Thanks for the reply. It looks like it will be possible to parse this from the setup xml file.

https://www.dewesoft.com/forum/posts/221

Thanks for the reply. It looks like it will be possible to parse this from the setup xml file.

https://www.dewesoft.com/forum/posts/221