public bool Disconnect()
{
var flag = false;
try
{
if (mItemIDList != null)
{
var handlesSrv = HandleClients.Keys.ToArray <int>();
if (TheGrp != null)
{
int[] aE;
TheGrp.RemoveItems(handlesSrv, out aE);
TheGrp.DataChanged -= TheGrp_DataChanged;
TheGrp.ReadCompleted -= TheGrp_ReadCompleted;
TheGrp.WriteCompleted -= TheGrp_WriteCompleted;
TheGrp.Remove(false);
TheGrp = null;
}
}
if (TheSrv != null)
{
TheSrv.Disconnect();
flag = true;
TheSrv = null;
}
}
finally
{
TheSrv = null;
TheGrp = null;
}
return(flag);
}
/// <summary>
/// 写标签值
/// </summary>
/// <param name="itemNames"> 标签名数组 </param>
/// <returns>0:成功; 1:无标签名;2:有标签名为Null; 3:不能写只读标签 4:其他错误 </returns>
public int Write(string[] itemNames)
{
var HandlesSrv = new int[itemNames.Length];
var ItemValues = new object[itemNames.Length];
int CancelID;
var aE = new int[HandlesSrv.Length];
if ((itemNames == null) || (itemNames.Length == 0))
{
return(1);
}
var i = 0;
foreach (var s in itemNames)
{
if (Items[s].Value == null)
{
return(2);
}
if (Items[s].Access == AccessMode.R)
{
return(3);
}
HandlesSrv[i] = Items[s].HandleSrv;
ItemValues[i] = Items[s].Value;
i++;
}
try {
TheGrp.AsyncWrite(HandlesSrv, ItemValues, 55667788, out CancelID, out aE);
return(0);
} catch (Exception) {
return(4);
}
}
public void SetPLC_IP(string ip)
{
foreach (var c in Items.Values)
{
c.IPAddress = ip;
}
var err = new int[HandleClients.Count];
TheGrp.RemoveItems(HandleClients.Keys.ToArray(), out err);
HandleClients.Clear();
AddItemIDs(Items);
}
private OpcGroup AddGroup(string GroupName)
{
if (TheGrp != null)
{
return(TheGrp);
}
TheGrp = TheSrv.AddGroup(GroupName, false, mUpdateRate);
TheGrp.DataChanged += TheGrp_DataChanged;
TheGrp.ReadCompleted += TheGrp_ReadCompleted;
TheGrp.WriteCompleted += TheGrp_WriteCompleted;
TheGrp.SetEnable(true);
TheGrp.Active = false;
return(TheGrp);
}
public void AddItemIDs(Dictionary <string, CItemID> IDs)
{
try {
// string ItemA = "2:192.168.2.1:0201:0201,MB0,BYTE,RW";
var i = 0;
var a = new OPCItemDef[IDs.Count];
OPCItemResult[] b;
foreach (var ID in IDs.Values)
{
var nID = new OPCItemDef();
nID.ItemID = ID.ToString();
nID.Active = true;
nID.HandleClient = 1000 + i;
if (HandleClients == null)
{
HandleClients = new Dictionary <int, CItemID>();
}
HandleClients.Add(nID.HandleClient, ID);
a[i++] = nID;
}
TheGrp.AddItems(a, out b);
if (b == null)
{
return;
}
for (i = 0; i < b.Length; i++)
{
if (b[i].Error != 0)
{
var s = Enum.GetName(typeof(OPCErrors), b[i].Error);
throw (new Exception("加入标签失败!"));
}
}
var names = IDs.Keys.ToList <string>();
for (i = 0; i < b.Length; i++)
{
IDs[names[i]].HandleSrv = b[i].HandleServer;
}
mItemIDList = IDs;
TheGrp.SetEnable(true);
TheGrp.Active = true;
} catch (Exception) {
throw;
}
}
public void ReadAll()
{
int CancelID;
int[] aE;
try {
var HandlesSrv = new int[Items.Count];
aE = new int[Items.Count];
var names = Items.Keys.ToArray <string>();
for (var i = 0; i < HandlesSrv.Length; i++)
{
HandlesSrv[i] = Items[names[i]].HandleSrv;
}
TheGrp.AsyncRead(HandlesSrv, 55667788, out CancelID, out aE);
} catch (Exception) {
throw;
}
}
public void SetGroupActive(bool value)
{
TheGrp.SetEnable(true);
TheGrp.Active = value;
}
