/// <summary>
/// Tag对象注册事件
/// </summary>
/// <param name="group">TagGroup对象</param>
/// <param name="tag">Tag对象</param>
private void OnTagInGroupRegister(CustomGroup group, CustomTag tag)
{
_tagRegisterInParentHandler?.Invoke(group, tag);
SiemensTag siemensTag = tag as SiemensTag;
Block.Add(siemensTag.DB_Offset, siemensTag.Length);
}
/// <summary>
/// 读取西门子PLC中该Tag的值
/// </summary>
/// <param name="tag"></param>
/// <returns></returns>
public SiemensTag ReadTagValue(SiemensTag tag)
{
Stopwatch sw = new Stopwatch();
sw.Start();
if (tag is SiemensBoolOfTag)
{
byte[] buffer = new byte[1];
int resNo =
specialRWConnection.ReadBlock(
DBType,
DBNumber,
tag.DB_Offset,
1,
ref buffer,
out string errText);
SetTagValue(buffer, tag, tag.DB_Offset);
}
else if (tag is SiemensLengthTag)
{
if (tag is SiemensRealOfTag)
{
SiemensRealOfTag ltag = tag as SiemensRealOfTag;
float value = 0;
int resNo =
specialRWConnection.ReadFloat(
DBType,
DBNumber,
ltag.DB_Offset,
ref value,
out string errText);
ltag.Value = value;
}
else
{
SiemensLengthTag ltag = tag as SiemensLengthTag;
byte[] buffer = new byte[ltag.Length];
int resNo =
specialRWConnection.ReadBlock(
DBType,
DBNumber,
ltag.DB_Offset,
ltag.Length,
ref buffer,
out string errText);
SetTagValue(buffer, tag, tag.DB_Offset);
}
}
sw.Stop();
_log.Debug($"触发信号[{tag.Name}]的执行时长：[{sw.ElapsedMilliseconds}]毫秒");
return(tag);
}
/// <summary>
/// Tag对象注册事件
/// </summary>
/// <param name="group">TagGroup对象</param>
/// <param name="tag">Tag对象</param>
private void OnTagRegister(CustomGroup group, CustomTag tag)
{
_log.Trace($"Device[{Name}]:Tag[{tag.Name}],Offset[{tag.DB_Offset}]");
if (!(tag is SiemensTag))
{
throw new Exception($"tag对象：{tag.Name}不是SiemensTag对象");
}
SiemensTag siemensTag = tag as SiemensTag;
switch (CycleReadMode)
{
case SiemensCycleReadMode.FullBlock:
FullBlock.Add(siemensTag.DB_Offset, siemensTag.Length);
break;
case SiemensCycleReadMode.ControlBlock:
if (siemensTag.Type == TagType.C)
{
string key = "";
if (group is SiemensTagGroup)
{
key = (group as SiemensTagGroup).Name;
}
else if (group is SiemensSubTagGroup)
{
SiemensSubTagGroup subGroup = group as SiemensSubTagGroup;
key = $"{subGroup.Parent.Name}.{subGroup.Prefix}";
}
PLCDBBlock block = ControlBlock[key];
if (block == null)
{
block = new PLCDBBlock();
ControlBlock.Add(key, block);
}
block.Add(siemensTag.DB_Offset, siemensTag.Length);
}
break;
}
}