/// <summary>
/// ���������õ���㼯��
/// </summary>
/// <param name="WhereClause"></param>
/// <param name="flag">�Ƿ�ʵʱֵ</param>
/// <param name="time"></param>
/// <returns></returns>
public List<string> GetPointList(string WhereClause, bool flag, DateTime time)
{
List<string> l = new List<string>();
try {
//GetPointsSQL tagname=tagname* ����ģ����ϲ�ѯ and����
PointList pl = piServer.GetPointsSQL(WhereClause, null, null);
if (flag) {
foreach (PIPoint pt in pl) {
l.Add(pt.PointAttributes["pointid"].Value.ToString() + "," + pt.PointAttributes["tag"].Value.ToString().ToUpper() + "," + pt.PointAttributes["descriptor"].Value.ToString().ToUpper() + "," + pt.PointAttributes["engunits"].Value.ToString().ToUpper() + "," + pt.Data.Snapshot.Value.ToString());
}
}
else {
PISDK.RetrievalTypeConstants rtc = PISDK.RetrievalTypeConstants.rtInterpolated;
PISDKCommon.PIAsynchStatus pias = new PISDKCommon.PIAsynchStatus();
foreach (PIPoint pt in pl) {
l.Add(pt.PointAttributes["pointid"].Value.ToString() + ","
+ pt.PointAttributes["tag"].Value.ToString().ToUpper() + ","
+ pt.PointAttributes["descriptor"].Value.ToString().ToUpper() + ","
+ pt.PointAttributes["engunits"].Value.ToString().ToUpper() + ","
+ pt.Data.ArcValue(time, rtc, pias).Value.ToString());
}
}
}
catch (Exception ex) {
_ErrorInfo = ex.Message;
}
return l;
}
/// <summary>
/// ��ȡij���������
/// </summary>
/// <param name="tagname">����</param>
/// <returns></returns>
public string GetDigitalSnapshotValueName(string tagname)
{
string ReData = null;
try {
PISDKCommon.PIAsynchStatus pias = new PISDKCommon.PIAsynchStatus();
PISDK.PIPoint piPoint = piServer.PIPoints[tagname];
PISDK.PIValue _PIValue = piPoint.Data.Snapshot;
PISDK.DigitalState myDigState = null;
//if (_PIValue.Value.GetType().IsCOMObject)
{
myDigState = (PISDK.DigitalState)_PIValue.Value;
ReData = myDigState.Name.ToString();
}
}
catch (Exception ex) {
_ErrorInfo = ex.Message;
ReData = null;
}
return ReData;
}
/// <summary>
/// ��ȡij���������
/// </summary>
/// <param name="tagname">����</param>
/// <returns></returns>
public string GetDigitalArchiveValueName(string tagname, DateTime dt)
{
string ReData = null;
try {
PISDK.RetrievalTypeConstants rtc = PISDK.RetrievalTypeConstants.rtInterpolated;
PISDKCommon.PIAsynchStatus pias = new PISDKCommon.PIAsynchStatus();
PISDK.PIPoint piPoint = piServer.PIPoints[tagname];
PISDK.PIValue _PIValue = piPoint.Data.ArcValue(dt, rtc, pias);
PISDK.DigitalState myDigState = null;
//if (_PIValue.Value.GetType().IsCOMObject)
{
myDigState = (PISDK.DigitalState)_PIValue.Value;
ReData = myDigState.Name.ToString();
}
}
catch (Exception ex) {
_ErrorInfo = ex.Message;
}
return ReData;
}
/// <summary>
/// ��ȡij�����Archiveֵ
/// </summary>
/// <param name="tagname">����</param>
/// <returns></returns>
public double GetArchiveValue(string tagname, DateTime dt)
{
double DValue = double.MinValue;
try {
PISDK.RetrievalTypeConstants rtc = PISDK.RetrievalTypeConstants.rtInterpolated;
PISDKCommon.PIAsynchStatus pias = new PISDKCommon.PIAsynchStatus();
PISDK.PIPoint piPoint = piServer.PIPoints[tagname];
PISDK.PIValue _PIValue = piPoint.Data.ArcValue(dt, rtc, pias);
DValue = Convert.ToDouble(_PIValue.Value.ToString());
}
catch (Exception ex) {
_ErrorInfo = ex.Message;
}
return DValue;
}
/// <summary>
/// �����
/// </summary>
/// <param name="tagname"></param>
/// <param name="value"></param>
/// <returns></returns>
public bool WriteSnapshotValue(string tagname, string value)
{
try {
PISDK.PIPoint piSnapPoint = GetPoint(tagname);
PISDKCommon.PIAsynchStatus pias = new PISDKCommon.PIAsynchStatus();
piSnapPoint.PointAttributes.ReadOnly = false;
piSnapPoint.Data.UpdateValue(value, 0, PISDK.DataMergeConstants.dmReplaceDuplicates, pias);
piSnapPoint.PointAttributes.ReadOnly = true;
return true;
}
catch (Exception ex) {
_ErrorInfo = ex.Message;
return false;
}
}
public bool UpdateAttr(string tagname, string attr, string SetVal)
{
PISDK.PIPoint piSnapPoint = GetPoint(tagname);
PISDKCommon.PIAsynchStatus pias = new PISDKCommon.PIAsynchStatus();
PointAttribute ptatr = piSnapPoint.PointAttributes[attr];
piSnapPoint.PointAttributes.ReadOnly = false;
ptatr.Value = SetVal;
piSnapPoint.PointAttributes.ReadOnly = true;
return true;
}
