Unknown error (0x100001a8) about citect

[wz2b]

Just by way of a little more context, I tried something different:

class TestClass
{

    static void Main(string[] args)
    {
        var wrapper = new Citect.CtApi(true);
        wrapper.Open();

        Console.WriteLine("find some tags");
        var tags = wrapper.Find("Tag", "TAG=*SOFC_2*", "", "TAG");

        
        foreach(var onetag in tags)
        {
            foreach (var ot in onetag)
            {
                Console.WriteLine(ot.Key + ": " + ot.Value);
            }
        }

        Console.WriteLine("Get one tag");
        string t = wrapper.TagRead("SOFC_2_TEST_RUNNING");
        Console.WriteLine(t);

        wrapper.Close();
    }
}

The first part dumps all the tags that matched a tag pattern. It works, and gives me a list like this:

TAG: SOFC_2_GAS_5_SV_MON
TAG: SOFC_2_GAS_6_SELECT_FROM_HMI
TAG: SOFC_2_GAS_6_SELECTED
TAG: SOFC_2_GAS_6_SV_MOF
TAG: SOFC_2_GAS_6_SV_MON
TAG: SOFC_2_TEST_RUNNING

so as you can see SOFC_2_TEST_RUNNING is a valid tag. Tracing TagRead further:

var result = CtTagRead(_ctapi, tag, value, value.Capacity);

This returns false.

I also tried naming the tag I'm requesting CLUSTER.TAGNAME and CLUSTER.DEVICE.TAGNAME which also didn't work.

[estradege]

Hi,
the Unknown error (0x100001a8) refer to 424 error code (Tag Not Found). TagRead also raise Unknown error (0x1000000c) if tag has a bad quality but this behaviour is not describe in the citect help.