public void WriteUDTString(string tagName, string value)
{
lock (mSyncLock) {
Logix.Tag lengthTag = new Logix.Tag(tagName + ".LEN");
Logix.Tag dataTag = new Logix.Tag(tagName + ".DATA[0]");
System.Text.UTF7Encoding utf = new System.Text.UTF7Encoding();
// * set the DataType properties
lengthTag.DataType = Logix.Tag.ATOMIC.DINT;
dataTag.DataType = Logix.Tag.ATOMIC.SINT;
lengthTag.Value = value.Length;
dataTag.Length = value.Length;
dataTag.Value = utf.GetBytes(value);
WriteTag(lengthTag);
WriteTag(dataTag);
}
}
public bool AddTag(Tag tag)
{
if (mTagDict.ContainsKey(tag.Name)) return false;
Logix.Tag ltag = null;
switch (tag.DataType) {
case DataType.Bool:
ltag = new Logix.Tag(mPLC, tag.Name, Logix.Tag.ATOMIC.BOOL);
break;
case DataType.Byte:
ltag = new Logix.Tag(mPLC, tag.Name, Logix.Tag.ATOMIC.SINT);
break;
case DataType.Int16:
ltag = new Logix.Tag(mPLC, tag.Name, Logix.Tag.ATOMIC.INT);
break;
case DataType.Int32:
ltag = new Logix.Tag(mPLC, tag.Name, Logix.Tag.ATOMIC.DINT);
break;
case DataType.Real32:
ltag = new Logix.Tag(mPLC, tag.Name, Logix.Tag.ATOMIC.REAL);
break;
case DataType.String:
ltag = new Logix.Tag(mPLC, tag.Name, Logix.Tag.ATOMIC.STRING);
break;
}
if (tag.ManualRead == false) {
if ((tag.Direction & TagDirection.Output) == TagDirection.Output) {
tag.TagChanged += new TagEventHandler(OnTagChanged);
}
if ((tag.Direction & TagDirection.Input) == TagDirection.Input) {
AddTagToGroup(ltag, tag.UpdateTime);
}
}
mTagDict.Add(tag.Name, tag);
mLTagDict.Add(tag.Name, ltag);
if(ltag.Value != null) tag.Value = ltag.Value; //Initialize Tag Value
return true;
}
public string ReadUDTString(string tagName)
{
lock (mSyncLock) {
System.Text.UTF7Encoding utf = new System.Text.UTF7Encoding();
Logix.Tag lengthTag = new Logix.Tag(tagName + ".LEN");
Logix.Tag dataTag = new Logix.Tag(tagName + ".DATA[0]");
ReadTag(lengthTag);
dataTag.Length = (int)lengthTag.Value;
ReadTag(dataTag);
if (dataTag.Value is sbyte) {
return Convert.ToChar(dataTag.Value).ToString();
} else if (dataTag.Value is System.Array) {
byte[] b = (byte[])dataTag.Value;
return utf.GetString(b, 0, dataTag.Length);
} else {
throw new LogixTagException("Invalid tag type.", dataTag, 0);
}
}
}
public LogixTagException(string msg, Logix.Tag tag, int errorCode)
: base(msg)
{
this.ErrorCode = errorCode;
this.Tag = tag;
}
