/// <summary>
/// Reads an Block from the Project and returns the block data that is stored in the S7 Project
/// </summary>
/// <param name="blkInfo">The Block info object that identifies the block to read from Disk</param>
/// <param name="myConvOpt">Defines options that determine how the Block will be converted</param>
/// <returns></returns>
public Block GetBlock(ProjectBlockInfo blkInfo, S7ConvertingOptions myConvOpt)
{
if (blkInfo._Block != null && ((blkInfo._Block) as S7Block).usedS7ConvertingOptions.Equals(myConvOpt))
{
return(blkInfo._Block);
}
ProjectPlcBlockInfo plcblkifo = (ProjectPlcBlockInfo)blkInfo;
tmpBlock myTmpBlk = GetBlockBytes(blkInfo);
List <Step7Attribute> step7Attributes = null;
if (myTmpBlk != null)
{
if (myTmpBlk.uda != null)
{
int uPos = 2;
if (myTmpBlk.uda != null && myTmpBlk.uda.Length > 0 && myTmpBlk.uda[0] > 0)
{
step7Attributes = new List <Step7Attribute>();
for (int j = 0; j < myTmpBlk.uda[0]; j++)
{
string t1 = Project.ProjectEncoding.GetString(myTmpBlk.uda, uPos + 1, myTmpBlk.uda[uPos]);
uPos += myTmpBlk.uda[uPos] + 1;
string t2 = Project.ProjectEncoding.GetString(myTmpBlk.uda, uPos + 1, myTmpBlk.uda[uPos]);
uPos += myTmpBlk.uda[uPos] + 1;
step7Attributes.Add(new Step7Attribute(t1, t2));
}
}
}
//Begin with the Block Reading...
if (blkInfo.BlockType == PLCBlockType.VAT)
{
S7VATBlock retValBlock = new S7VATBlock(myTmpBlk.mc7code, myTmpBlk.comments, plcblkifo.BlockNumber, Project.ProjectEncoding);
retValBlock.Attributes = step7Attributes;
retValBlock.LastCodeChange = myTmpBlk.LastCodeChange;
retValBlock.LastInterfaceChange = myTmpBlk.LastInterfaceChange;
retValBlock.ParentFolder = this;
retValBlock.usedS7ConvertingOptions = myConvOpt;
blkInfo._Block = retValBlock;
return(retValBlock);
}
else if (blkInfo.BlockType == PLCBlockType.DB || blkInfo.BlockType == PLCBlockType.UDT)
{
List <string> tmpList = new List <string>();
S7DataBlock retVal = new S7DataBlock();
retVal.IsInstanceDB = myTmpBlk.IsInstanceDB;
retVal.FBNumber = myTmpBlk.FBNumber;
//if this is an interface DB, then rather take the Interface declaration from the instance FB,
//instead of the data sotred in the project.
//The reason is that if you change the comment in an FB, the DB data is not actualized and my contain outdated
//Declarations. When you change the interface, Step7 tells you to "regenerate" the instance DB which only then would
//Actualize the comments. Simple Commentary changes do not change the Datablocks row.
if (retVal.IsInstanceDB && myConvOpt.UseFBDeclarationForInstanceDB)
{
//load the FB data from the Project
tmpBlock InstFB = GetBlockBytes((myTmpBlk.IsSFB ? "SFB" : "FB") + myTmpBlk.FBNumber);
//Resolve both interfaces
List <string> tmpPar = new List <string>();
if (InstFB != null)
{
S7DataRow InterfaceFB =
Parameter.GetInterfaceOrDBFromStep7ProjectString(InstFB.blkinterface, ref tmpPar,
PLCBlockType.FB, false, this, null);
S7DataRow InterfaceDB =
Parameter.GetInterfaceOrDBFromStep7ProjectString(myTmpBlk.blkinterface, ref tmpPar,
PLCBlockType.DB, false, this, null);
//Only use the FB interface Declaration if they are compatible
if (Parameter.IsInterfaceCompatible(InterfaceFB, InterfaceDB))
{
myTmpBlk.blkinterface = InstFB.blkinterface;
}
}
}
if (myTmpBlk.mc7code != null)
{
retVal.CodeSize = myTmpBlk.mc7code.Length;
}
retVal.StructureFromString = Parameter.GetInterfaceOrDBFromStep7ProjectString(myTmpBlk.blkinterface, ref tmpList, blkInfo.BlockType, false, this, retVal, myTmpBlk.mc7code);
if (myTmpBlk.blkinterfaceInMC5 != null)
{
//List<string> tmp = new List<string>();
//retVal.StructureFromMC7 = Parameter.GetInterface(myTmpBlk.blkinterfaceInMC5, myTmpBlk.mc7code, ref tmp, blkInfo.BlockType, myTmpBlk.IsInstanceDB, retVal);
}
retVal.BlockNumber = plcblkifo.BlockNumber;
retVal.BlockType = blkInfo.BlockType;
retVal.Attributes = step7Attributes;
retVal.LastCodeChange = myTmpBlk.LastCodeChange;
retVal.LastInterfaceChange = myTmpBlk.LastInterfaceChange;
retVal.ParentFolder = this;
retVal.usedS7ConvertingOptions = myConvOpt;
retVal.CheckSum = myTmpBlk.CheckSum;
blkInfo._Block = retVal;
return(retVal);
}
else if (blkInfo.BlockType == PLCBlockType.FC || blkInfo.BlockType == PLCBlockType.FB || blkInfo.BlockType == PLCBlockType.OB || blkInfo.BlockType == PLCBlockType.SFB || blkInfo.BlockType == PLCBlockType.SFC)
{
List <string> ParaList = new List <string>();
S7FunctionBlock retVal = new S7FunctionBlock();
retVal.LastCodeChange = myTmpBlk.LastCodeChange;
retVal.LastInterfaceChange = myTmpBlk.LastInterfaceChange;
retVal.BlockNumber = plcblkifo.BlockNumber;
retVal.BlockType = blkInfo.BlockType;
retVal.Attributes = step7Attributes;
retVal.KnowHowProtection = myTmpBlk.knowHowProtection;
retVal.MnemonicLanguage = Project.ProjectLanguage;
retVal.Author = myTmpBlk.username;
retVal.Version = myTmpBlk.version;
retVal.Parameter = Parameter.GetInterfaceOrDBFromStep7ProjectString(myTmpBlk.blkinterface, ref ParaList, blkInfo.BlockType, false, this, retVal);
if (myTmpBlk.blockdescription != null)
{
retVal.Title = Project.ProjectEncoding.GetString(myTmpBlk.blockdescription, 3, myTmpBlk.blockdescription[1] - 4);
retVal.Description = Project.ProjectEncoding.GetString(myTmpBlk.blockdescription, myTmpBlk.blockdescription[1], myTmpBlk.blockdescription.Length - myTmpBlk.blockdescription[1] - 1).Replace("\n", Environment.NewLine);
}
if (blkInfo.BlockType == PLCBlockType.FC || blkInfo.BlockType == PLCBlockType.FB || blkInfo.BlockType == PLCBlockType.OB)
{
retVal.CodeSize = myTmpBlk.mc7code.Length;
int[] Networks;
Networks = NetWork.GetNetworks(0, myTmpBlk.nwinfo);
S7ProgrammFolder prgFld = null;
if (this.Parent is S7ProgrammFolder)
{
prgFld = (S7ProgrammFolder)this.Parent;
}
retVal.AWLCode = MC7toAWL.GetAWL(0, myTmpBlk.mc7code.Length - 2, (int)myConvOpt.Mnemonic, myTmpBlk.mc7code, Networks, ParaList, prgFld, retVal, retVal.Parameter);
retVal.AWLCode = JumpMarks.AddJumpmarks(retVal.AWLCode, myTmpBlk.jumpmarks, myTmpBlk.nwinfo, myConvOpt);
LocalDataConverter.ConvertLocaldataToSymbols(retVal, myConvOpt);
CallConverter.ConvertUCToCall(retVal, prgFld, this, myConvOpt, null);
FBStaticAccessConverter.ReplaceStaticAccess(retVal, prgFld, myConvOpt);
#region UseComments from Block
if (myConvOpt.UseComments)
{
List <FunctionBlockRow> newAwlCode = new List <FunctionBlockRow>();
int n = 0;
int akRowInAwlCode = 0;
int lineNumberInCall = 0; //Counter wich line in Command (for Calls and UCs)
if (myTmpBlk.comments != null)
{
byte[] cmt = myTmpBlk.comments;
//string aa = System.Text.Encoding.GetEncoding("Windows-1251").GetString(cmt);
//string testaa = "";
while (n < myTmpBlk.comments.Length)
{
int kommLen = cmt[n + 0];
int startNWKomm = cmt[n + 1];
int anzUebsprungZeilen = cmt[n + 2] + cmt[n + 3] * 0x100;
int lenNWKommZeile = cmt[n + 3] + cmt[n + 4] * 0x100;
//Console.WriteLine(cmt[n + 5].ToString("X"));
if (cmt[n + 5] == 0x06)
{
//NWKomentar:
string tx1 = Project.ProjectEncoding.GetString(cmt, n + 6, startNWKomm - 7);
string tx2 = Project.ProjectEncoding.GetString(cmt, n + startNWKomm, lenNWKommZeile - startNWKomm - 1).Replace("\n", Environment.NewLine);
n += lenNWKommZeile;
if (retVal.AWLCode.Count > akRowInAwlCode)
{
while (retVal.AWLCode.Count - 1 > akRowInAwlCode && retVal.AWLCode[akRowInAwlCode].Command != "NETWORK")
{
if (!newAwlCode.Contains(retVal.AWLCode[akRowInAwlCode]))
{
//newAwlCode.Add(retVal.AWLCode[akRowInAwlCode]);
S7FunctionBlockRow akRw = (S7FunctionBlockRow)retVal.AWLCode[akRowInAwlCode];
if (akRw.CombineDBAccess)
{
S7FunctionBlockRow nRw = (S7FunctionBlockRow)retVal.AWLCode[akRowInAwlCode + 1];
if (!nRw.Parameter.Contains("["))
{
nRw.Parameter = akRw.Parameter + "." + nRw.Parameter;
nRw.MC7 = Helper.CombineByteArray(akRw.MC7, nRw.MC7);
nRw.Label = akRw.Label ?? nRw.Label;
akRw = nRw;
retVal.AWLCode.RemoveAt(akRowInAwlCode + 1);
}
}
if (!newAwlCode.Contains(akRw))
{
newAwlCode.Add(akRw);
}
}
akRowInAwlCode++;
}
((S7FunctionBlockRow)retVal.AWLCode[akRowInAwlCode]).NetworkName = tx1;
((S7FunctionBlockRow)retVal.AWLCode[akRowInAwlCode]).Comment = tx2;
newAwlCode.Add(retVal.AWLCode[akRowInAwlCode]);
}
akRowInAwlCode++;
lineNumberInCall = 0;
}
else
{
S7FunctionBlockRow lastRow = null;
//Anzahl der Anweisungen vor diesem Kommentar (inklusive aktueller Zeile!)
for (int q = 0; q < (anzUebsprungZeilen); q++)
{
if (retVal.AWLCode.Count > akRowInAwlCode)
{
S7FunctionBlockRow akRw = (S7FunctionBlockRow)retVal.AWLCode[akRowInAwlCode];
if (cmt[n + 4] == 0xc0 && q == anzUebsprungZeilen - 1)
{
akRw.CombineDBAccess = false;
}
//Db Zugriff zusammenfügen...
if (akRw.CombineDBAccess)
{
S7FunctionBlockRow nRw = (S7FunctionBlockRow)retVal.AWLCode[akRowInAwlCode + 1];
nRw.Parameter = akRw.Parameter + "." + nRw.Parameter;
nRw.MC7 = Helper.CombineByteArray(akRw.MC7, nRw.MC7);
nRw.Label = akRw.Label ?? nRw.Label;
akRw = nRw;
retVal.AWLCode.RemoveAt(akRowInAwlCode + 1);
}
if (!newAwlCode.Contains(akRw))
{
newAwlCode.Add(akRw);
}
if (akRw.GetNumberOfLines() == 1)
{
lineNumberInCall = 0;
lastRow = akRw;
//if (!newAwlCode.Contains(akRw))
// newAwlCode.Add(akRw);
akRowInAwlCode++;
}
else
{
lastRow = akRw;
if (lineNumberInCall == 0 && !(cmt[n + 4] != 0x80 && cmt[n + 4] != 0xc0))
{
//if (!newAwlCode.Contains(akRw))
// newAwlCode.Add(akRw);
}
if (akRw.GetNumberOfLines() - 1 == lineNumberInCall)
{
akRowInAwlCode++;
lineNumberInCall = 0;
//subCnt++; //The set to zero was wrong here, but maybe now comments on calls do not work, need to check!
}
else
{
lineNumberInCall++;
}
}
}
}
//if (lastRow == null || cmt[n + 4] != 0x80)
if (lastRow == null || (cmt[n + 4] != 0x80 && cmt[n + 4] != 0xc0))
{
lastRow = new S7FunctionBlockRow()
{
Parent = retVal
};
newAwlCode.Add(lastRow);
lineNumberInCall = 0;
}
string tx1 = Project.ProjectEncoding.GetString(cmt, n + 6, kommLen);
if (lineNumberInCall == 0)
{
lastRow.Comment = tx1;
}
else
if (lastRow.Command == "CALL")
{
if (lineNumberInCall == 1)
{
lastRow.Comment = tx1;
}
else
{
if (lastRow.CallParameter.Count >= lineNumberInCall - 2)
{
lastRow.CallParameter[lineNumberInCall - 2].Comment = tx1;
}
}
}
n += kommLen + 6;
//subCnt = 0;
}
}
}
while (akRowInAwlCode < retVal.AWLCode.Count)
{
newAwlCode.Add(retVal.AWLCode[akRowInAwlCode]);
akRowInAwlCode++;
}
retVal.AWLCode = newAwlCode;
}
#endregion
}
retVal.Networks = NetWork.GetNetworksList(retVal);
retVal.ParentFolder = this;
retVal.usedS7ConvertingOptions = myConvOpt;
retVal.CheckSum = myTmpBlk.CheckSum;
blkInfo._Block = retVal;
return(retVal);
}
}
return(null);
}
public Block GetBlock(ProjectBlockInfo blkInfo, S7ConvertingOptions myConvOpt)
{
//Todo: Enable this, but then myConvOpt is only used the first time!
//if (blkInfo._Block != null)
// return blkInfo._Block;
ProjectPlcBlockInfo plcblkifo = (ProjectPlcBlockInfo)blkInfo;
tmpBlock myTmpBlk = GetBlockBytes(blkInfo);
List <Step7Attribute> step7Attributes = null;
if (myTmpBlk != null)
{
if (myTmpBlk.uda != null)
{
int uPos = 2;
if (myTmpBlk.uda != null && myTmpBlk.uda.Length > 0 && myTmpBlk.uda[0] > 0)
{
step7Attributes = new List <Step7Attribute>();
for (int j = 0; j < myTmpBlk.uda[0]; j++)
{
string t1 = Project.ProjectEncoding.GetString(myTmpBlk.uda, uPos + 1, myTmpBlk.uda[uPos]);
uPos += myTmpBlk.uda[uPos] + 1;
string t2 = Project.ProjectEncoding.GetString(myTmpBlk.uda, uPos + 1, myTmpBlk.uda[uPos]);
uPos += myTmpBlk.uda[uPos] + 1;
step7Attributes.Add(new Step7Attribute(t1, t2));
}
}
}
//Begin with the Block Reading...
if (blkInfo.BlockType == PLCBlockType.VAT)
{
S7VATBlock retValBlock = new S7VATBlock(myTmpBlk.mc7code, myTmpBlk.comments, plcblkifo.BlockNumber, Project.ProjectEncoding);
retValBlock.Attributes = step7Attributes;
retValBlock.LastCodeChange = myTmpBlk.LastCodeChange;
retValBlock.LastInterfaceChange = myTmpBlk.LastInterfaceChange;
retValBlock.BlockLanguage = (PLCLanguage)myTmpBlk.Language;
return(retValBlock);
}
else if (blkInfo.BlockType == PLCBlockType.DB || blkInfo.BlockType == PLCBlockType.UDT)
{
List <string> tmpList = new List <string>();
S7DataBlock retVal = new S7DataBlock();
retVal.IsInstanceDB = myTmpBlk.IsInstanceDB;
retVal.FBNumber = myTmpBlk.FBNumber;
retVal.StructureFromString = Parameter.GetInterfaceOrDBFromStep7ProjectString(myTmpBlk.blkinterface, ref tmpList, blkInfo.BlockType, false, this, retVal, myTmpBlk.mc7code);
if (myTmpBlk.blkinterfaceInMC5 != null)
{
//List<string> tmp = new List<string>();
//retVal.StructureFromMC7 = Parameter.GetInterface(myTmpBlk.blkinterfaceInMC5, myTmpBlk.mc7code, ref tmp, blkInfo.BlockType, myTmpBlk.IsInstanceDB, retVal);
}
retVal.BlockNumber = plcblkifo.BlockNumber;
retVal.BlockType = blkInfo.BlockType;
retVal.Attributes = step7Attributes;
retVal.LastCodeChange = myTmpBlk.LastCodeChange;
retVal.LastInterfaceChange = myTmpBlk.LastInterfaceChange;
if (blkInfo.BlockType != PLCBlockType.UDT)
{
retVal.CodeSize = myTmpBlk.mc7code.Length + 36;
}
retVal.BlockLanguage = (PLCLanguage)myTmpBlk.Language;
return(retVal);
}
else if (blkInfo.BlockType == PLCBlockType.FC || blkInfo.BlockType == PLCBlockType.FB || blkInfo.BlockType == PLCBlockType.OB || blkInfo.BlockType == PLCBlockType.SFB || blkInfo.BlockType == PLCBlockType.SFC)
{
List <string> ParaList = new List <string>();
S7FunctionBlock retVal = new S7FunctionBlock();
blkInfo._Block = retVal;
retVal.LastCodeChange = myTmpBlk.LastCodeChange;
retVal.LastInterfaceChange = myTmpBlk.LastInterfaceChange;
retVal.BlockNumber = plcblkifo.BlockNumber;
retVal.BlockType = blkInfo.BlockType;
retVal.Attributes = step7Attributes;
retVal.KnowHowProtection = myTmpBlk.knowHowProtection;
retVal.MnemonicLanguage = Project.ProjectLanguage;
retVal.CodeSize = myTmpBlk.mc7code.Length + 36;
retVal.Author = myTmpBlk.username;
retVal.Version = myTmpBlk.version;
// retVal.Parameter = Parameter.GetInterfaceOrDBFromStep7ProjectString(myTmpBlk.blkinterface, ref ParaList, blkInfo.BlockType, false, this, retVal);
if (myTmpBlk.blockdescription != null)
{
retVal.Title = Project.ProjectEncoding.GetString(myTmpBlk.blockdescription, 3, myTmpBlk.blockdescription[1] - 4);
retVal.Description = Project.ProjectEncoding.GetString(myTmpBlk.blockdescription, myTmpBlk.blockdescription[1], myTmpBlk.blockdescription.Length - myTmpBlk.blockdescription[1] - 1).Replace("\n", Environment.NewLine);
}
retVal.BlockLanguage = (PLCLanguage)myTmpBlk.Language;
return(retVal);
if (blkInfo.BlockType == PLCBlockType.FC || blkInfo.BlockType == PLCBlockType.FB || blkInfo.BlockType == PLCBlockType.OB)
{
int[] Networks;
Networks = NetWork.GetNetworks(0, myTmpBlk.nwinfo);
S7ProgrammFolder prgFld = null;
if (this.Parent is S7ProgrammFolder)
{
prgFld = (S7ProgrammFolder)this.Parent;
}
retVal.AWLCode = MC7toAWL.GetAWL(0, myTmpBlk.mc7code.Length - 2, (int)myConvOpt.Mnemonic, myTmpBlk.mc7code, Networks, ParaList, prgFld);
retVal.AWLCode = JumpMarks.AddJumpmarks(retVal.AWLCode, myTmpBlk.jumpmarks, myTmpBlk.nwinfo);
LocalDataConverter.ConvertLocaldataToSymbols(retVal, myConvOpt);
FBStaticAccessConverter.ReplaceStaticAccess(retVal, prgFld, myConvOpt);
CallConverter.ConvertUCToCall(retVal, prgFld, this, myConvOpt, null);
#region UseComments from Block
if (myConvOpt.UseComments)
{
List <FunctionBlockRow> newAwlCode = new List <FunctionBlockRow>();
int n = 0;
int j = 0;
int subCnt = 0; //Counter wich line in Command (for Calls and UCs)
if (myTmpBlk.comments != null)
{
byte[] cmt = myTmpBlk.comments;
//string aa = System.Text.Encoding.GetEncoding("Windows-1251").GetString(cmt);
//string testaa = "";
while (n < myTmpBlk.comments.Length)
{
int kommLen = cmt[n + 0];
int startNWKomm = cmt[n + 1];
int anzUebsprungZeilen = cmt[n + 2] + cmt[n + 3] * 0x100;
int lenNWKommZeile = cmt[n + 3] + cmt[n + 4] * 0x100;
//Console.WriteLine(cmt[n + 5].ToString("X"));
if (cmt[n + 5] == 0x06)
{
//NWKomentar:
string tx1 = Project.ProjectEncoding.GetString(cmt, n + 6, startNWKomm - 7);
string tx2 = Project.ProjectEncoding.GetString(cmt, n + startNWKomm, lenNWKommZeile - startNWKomm - 1).Replace("\n", Environment.NewLine);
n += lenNWKommZeile;
if (retVal.AWLCode.Count > j)
{
while (retVal.AWLCode.Count - 1 > j && retVal.AWLCode[j].Command != "NETWORK")
{
newAwlCode.Add(retVal.AWLCode[j]);
j++;
}
((S7FunctionBlockRow)retVal.AWLCode[j]).NetworkName = tx1;
((S7FunctionBlockRow)retVal.AWLCode[j]).Comment = tx2;
newAwlCode.Add(retVal.AWLCode[j]);
}
j++;
subCnt = 0;
}
else
{
S7FunctionBlockRow lastRow = null;
//Anzahl der Anweisungen vor diesem Kommentar (inklusive aktueller Zeile!)
for (int q = 0; q < (anzUebsprungZeilen); q++)
{
if (retVal.AWLCode.Count > j)
{
S7FunctionBlockRow akRw = (S7FunctionBlockRow)retVal.AWLCode[j];
if (cmt[n + 4] == 0xc0 && q == anzUebsprungZeilen - 1)
{
akRw.CombineDBAccess = false;
}
//Db Zugriff zusammenfügen...
if (akRw.CombineDBAccess)
{
S7FunctionBlockRow nRw = (S7FunctionBlockRow)retVal.AWLCode[j + 1];
nRw.Parameter = akRw.Parameter + "." + nRw.Parameter;
nRw.MC7 = Helper.CombineByteArray(akRw.MC7, nRw.MC7);
akRw = nRw;
retVal.AWLCode.RemoveAt(j + 1);
}
if (akRw.GetNumberOfLines() == 1)
{
subCnt = 0;
lastRow = akRw;
newAwlCode.Add(akRw);
j++;
}
else
{
lastRow = akRw;
if (subCnt == 0)
{
newAwlCode.Add(akRw);
}
if (akRw.GetNumberOfLines() - 1 == subCnt)
{
j++;
//subCnt = 0;
subCnt++;
}
else
{
subCnt++;
}
}
}
}
//if (lastRow == null || cmt[n + 4] != 0x80)
if (lastRow == null || (cmt[n + 4] != 0x80 && cmt[n + 4] != 0xc0))
{
lastRow = new S7FunctionBlockRow();
newAwlCode.Add(lastRow);
subCnt = 0;
}
string tx1 = Project.ProjectEncoding.GetString(cmt, n + 6, kommLen);
if (subCnt == 0)
{
lastRow.Comment = tx1;
}
else
if (lastRow.Command == "CALL")
{
if (subCnt == 1)
{
lastRow.Comment = tx1;
}
else
{
lastRow.CallParameter[subCnt - 2].Comment = tx1;
}
}
n += kommLen + 6;
//subCnt = 0;
}
}
}
while (j < retVal.AWLCode.Count)
{
newAwlCode.Add(retVal.AWLCode[j]);
j++;
}
retVal.AWLCode = newAwlCode;
}
#endregion
}
retVal.Networks = NetWork.GetNetworksList(retVal);
retVal.ParentFolder = this;
return(retVal);
}
}
return(null);
}