public bool UpdateBlock()
{
//lock (this)
//{
OperateResult <byte[]> read = null;
try
{
if (null != ReadAreaMaxLen && ReadAreaMaxLen.Count > 0)
{
foreach (var item in ReadAreaMaxLen)
{
//Stopwatch sw = new Stopwatch();
//sw.Start();
read = allenBradleyNet.Read(item.Key, (ushort)item.Value);
if (null == read)
{
LOG.Error("读取失败:返回的报文体为空!");
return(false);
}
//sunjian 2019/11/14 防止xml配置有误，read.Content为空，导致UpdateBlock返回值为false，造成ABLogixDataSource UpdateAllValue更新所有数据失败，machine所有其他值都拿不到。
if (read.Content is null)
{
LOG.Error($"{allenBradleyNet} {item.Key} 数据读取失败，返回报文体内容为空！");
continue;
}
if (ReceiveByteMaxLen[item.Key] != read.Content.Length)
{
LOG.Error("读取失败:返回的报文体byte数组长度异常!");
return(false);
}
if (read.IsSuccess)
{
_dbAreaBuf[item.Key] = read.Content;
}
else
{
LOG.Error("读取失败：" + read.ToMessageShowString());
return(false);
}
//sw.Break();
//LOG.Info("读取Tag点时间是："+sw.ElapsedMilliseconds);
}
return(true);
}
LOG.Error("读取失败:读取集合为空!");
return(false);
}
catch (Exception ex)
{
LOG.Error("读取失败：" + ex.Message + ex.StackTrace);
return(false);
}
// }
}
public override object ReadTag(Tag tag)
{
if (tag.AccessType == TagAccessType.Read || tag.AccessType == TagAccessType.ReadWrite)
{
try
{
if (tag.TagType == "bool")
{
var res = PLC.ReadBool(tag.Address);
if (res.IsSuccess)
{
tag.TagValue = res.Content;
tag.Quality = Quality.Good;
}
else
{
tag.TagValue = null;
tag.Quality = Quality.Bad;
}
}
else if (tag.TagType == "string")
{
//if (tag.Address.Contains("#"))
//{
// string address = tag.Address.Split('#')[0];
// ushort len = Convert.ToUInt16(tag.Address.Split('#')[1]);
OperateResult <string> res = PLC.ReadString(tag.Address);
if (res.IsSuccess)
{
string strval = res.Content;//.Length >= len ? res.Content.Substring(0, len) : res.Content;
tag.TagValue = strval.Replace("\0", "");
tag.Quality = Quality.Good;
}
else
{
tag.TagValue = null;
tag.Quality = Quality.Bad;
}
//}
//else
//{
// throw new Message("Invalid tag address");
//}
}
else
{
// 2019年11月11日 11:41:12 夏 读取int由传入长度改为常量1
// ushort len = utils.GetLength(tag);
OperateResult <byte[]> res = PLC.Read(tag.Address, 1);
ConvertUtils.DecodeTagValue(tag, res);
}
return(tag.TagValue);
}
catch (Exception ex)
{
LOG.Error($"Datasource[{SourceName}] read error. Tag[{tag.TagName}] Address[{tag.Address}] Message[{ex.Message}]");
tag.TagValue = null;
tag.Quality = Quality.Bad;
return(tag.TagValue);
}
}
else
{
return(null);
}
}
