/// <summary>
/// 자기 자신에게 쓰이는 데이터 교환
/// </summary>
public void SelfDataExchange()
{
OPCSubscription selfRead = null;
for (int subi = 0; subi < this.ReadSubscriptions.Count; subi++)
{
if (this.ReadSubscriptions[subi].Type == 2)
{
selfRead = this.ReadSubscriptions[subi];
break;
}
}
OPCSubscription selfWrite = null;
for (int subi = 0; subi < this.WriteSubscriptions.Count; subi++)
{
if (this.WriteSubscriptions[subi].Type == 2)
{
selfWrite = this.WriteSubscriptions[subi];
break;
}
}
//올바른 데이터 그룹이라면.
if (selfRead != null && selfWrite != null)
{
//읽기
selfRead.ItemValues = selfRead.Subscription.Read(selfRead.Subscription.Items);
List <Opc.Da.ItemValue> values = new List <ItemValue>();
for (int i = 0; i < selfRead.ItemValues.Length; i++)
{
Opc.Da.Item item = selfWrite.Subscription.Items[i];
Opc.Da.ItemValueResult ivr = selfRead.ItemValues[i];
System.Type wt = selfWrite.ItemTypes[i];
System.Type rt = selfRead.ItemTypes[i];
object value = ivr.Value;
if (wt != rt)
{
value = Activator.CreateInstance(wt);
}
values.Add(new ItemValue(item)
{
Value = value
});
}
selfWrite.ItemValues = selfRead.ItemValues;
selfWrite.Subscription.Write(values.ToArray());
}
}
/// <summary>
/// 그룹추가.
/// </summary>
/// <param name="name">group name</param>
/// <param name="type">read 0, write 1</param>
/// <returns>추가 성공한 group</returns>
public OPCSubscription AddGroup(string name, int type)
{
bool duplicated = false;
OPCSubscription result = null;
if (type == 0)
{
for (int i = 0; i < this.ReadSubscriptions.Count; i++)
{
if (this.ReadSubscriptions[i].Name.Equals(name))
{
duplicated = true;
result = this.ReadSubscriptions[i];
break;
}
}
}
else if (type == 1)
{
for (int i = 0; i < this.WriteSubscriptions.Count; i++)
{
if (this.WriteSubscriptions[i].Name.Equals(name))
{
duplicated = true;
result = this.WriteSubscriptions[i];
break;
}
}
}
//중복이 아니라면
if (duplicated == false)
{
SubscriptionState subscriptionstate = new SubscriptionState()
{
Active = true,
Deadband = 0,
KeepAlive = 0,
UpdateRate = 1000,
ClientHandle = Guid.NewGuid().ToString(),
Name = name
};
//현재 선택된 서버에 Group을 생성한다.
Opc.Da.Subscription subscription = (Opc.Da.Subscription)Server.CreateSubscription(subscriptionstate);
OPCSubscription newgroup = new OPCSubscription()
{
Subscription = subscription
};
if (type == 0)
{
this.ReadSubscriptions.Add(newgroup);
}
else if (type == 1)
{
this.WriteSubscriptions.Add(newgroup);
}
result = newgroup;
}
return(result);
}