/// <summary>
/// ControlBlock模式读取数据块
/// </summary>
private void ControlBlockModeRead()
{
byte[] buffer;
for (int i = 0; i < ControlBlock.Count; i++)
{
PLCDBBlock block = ControlBlock[i];
buffer = new byte[block.BufferLength];
int resNo =
cycleReadConnection.ReadBlock(
DBType,
DBNumber,
block.Start_Offset,
block.BufferLength,
ref buffer,
out string errText);
if (resNo != 0)
{
_log.Error(
$"设备[{Name}]读取[{DBType}][{DBNumber}]" +
$"Offset[{block.Start_Offset}]Length[{block.BufferLength}]" +
$"失败，失败信息：[Code:{resNo},Message:{errText}]");
}
else
{
DoSomething(ControlBlock.GetKey(i), buffer);
}
}
}
/// <summary>
/// 根据关键字处理指定TagGroup所对应的数据块数据
/// </summary>
private void DealPartBlockBuffer(string key, byte[] buffer)
{
PLCDBBlock block = ControlBlock[key];
if (block != null && key != "COMM")
{
_log.Debug(
$"[{key}.Offset={block.Start_Offset}, " +
$"{key}.Length={block.BufferLength}]");
_log.Debug($"[{key}]|[Data:{Tools.BytesToBCD(buffer)}]");
}
// 根据key解析出TagGroup和SubTagGroup
string[] keys = key.Split('.');
string keyTagGroup = keys[0];
string keySubTagGroup = "";
if (keys.Length >= 2)
{
keySubTagGroup = keys[1];
}
SiemensTagGroup group = _groups[keyTagGroup] as SiemensTagGroup;
if (group == null)
{
_log.Error($"设备[{Name}]未找到[{keyTagGroup}]Tag组");
return;
}
if (keySubTagGroup == "")
{
SetControlTagValueInGroup(group, buffer, block.Start_Offset);
}
else
{
SiemensSubTagGroup subGroup =
group.SubGroups[keySubTagGroup] as SiemensSubTagGroup;
if (subGroup == null)
{
_log.Error($"设备[{Name}]未找到[{keyTagGroup}.{keySubTagGroup}]Tag组");
return;
}
else
{
SetControlTagValueInGroup(subGroup, buffer, block.Start_Offset);
}
}
}
/// <summary>
/// 在集合中新增一个PLCDBReadBlock对象
/// </summary>
/// <param name="key">关键字</param>
/// <param name="item">PLCDBReadBlock对象</param>
public void Add(string key, PLCDBBlock item)
{
if (key == "")
{
throw new Exception("关键字参数不能空白");
}
if (item == null)
{
throw new Exception("PLCDBReadBlock对象不能是null");
}
if (_items.ContainsKey(key))
{
throw new Exception($"集合中已经存在关键字[{key}]的PLCDBReadBlock对象");
}
_items.Add(key, item);
}
/// <summary>
/// Tag对象注册事件
/// </summary>
/// <param name="group">TagGroup对象</param>
/// <param name="tag">Tag对象</param>
private void OnTagRegister(CustomGroup group, CustomTag tag)
{
_log.Trace($"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;
}
}