public static S7UserDataDatagram BuildPendingAlarmRequest(SiemensPlcProtocolContext context, ushort id, byte sequenceNumber)
{
var data = sequenceNumber == 0 ? new byte[] { 0x00, 0x01, 0x12, 0x08, 0x1a, 0x00, 0x01, 0x34, 0x00, 0x00, 0x00, 0x04 } : Array.Empty <byte>();;
var result = new S7UserDataDatagram
{
Parameter = new S7UserDataParameter
{
ParamDataLength = sequenceNumber == 0 ? (byte)4 : (byte)8,
TypeAndGroup = ((byte)UserDataFunctionType.Request << 4) | (byte)UserDataFunctionGroup.Cpu,
SubFunction = (byte)UserDataSubFunctionCpu.AlarmInit,
SequenceNumber = sequenceNumber,
ParameterType = sequenceNumber == 0 ? (byte)UserDataParamTypeType.Request : (byte)UserDataParamTypeType.Response
},
Data = new S7UserData
{
Data = data,
UserDataLength = (ushort)data.Length,
ReturnCode = data.Length > 0 ? (byte)ItemResponseRetValue.Success : (byte)ItemResponseRetValue.DataError,
TransportSize = data.Length > 0 ? (byte)DataTransportSize.OctetString : (byte)DataTransportSize.Null
}
};
result.Header.ProtocolDataUnitReference = id;
result.Header.DataLength = sequenceNumber == 0 ? (ushort)16 : (ushort)4;
result.Header.ParamLength = sequenceNumber == 0 ? (ushort)8 : (ushort)12;
return(result);
}
public static S7UserDataDatagram BuildAlarmUpdateRequest(SiemensPlcProtocolContext context, ushort id, bool activate = true)
{
var data = new byte[] { 0x86, 0x00, 0x61, 0x73, 0x6d, 0x65, 0x73, 0x73, 0x00, 0x00, activate ? (byte)0x09 : (byte)0x08, 0x00 };
var result = new S7UserDataDatagram
{
Parameter = new S7UserDataParameter
{
ParamDataLength = 4,
TypeAndGroup = ((byte)UserDataFunctionType.Request << 4) | (byte)UserDataFunctionGroup.Cpu,
SubFunction = (byte)UserDataSubFunctionCpu.Msgs,
SequenceNumber = 0,
ParameterType = (byte)UserDataParamTypeType.Request
},
Data = new S7UserData
{
Data = data,
UserDataLength = (ushort)data.Length,
ReturnCode = data.Length > 0 ? (byte)ItemResponseRetValue.Success : (byte)ItemResponseRetValue.DataError,
TransportSize = data.Length > 0 ? (byte)DataTransportSize.OctetString : (byte)DataTransportSize.Null
}
};
result.Header.ProtocolDataUnitReference = id;
result.Header.DataLength = 16;
result.Header.ParamLength = 8;
return(result);
}
public static S7UserDataDatagram BuildBlocksOfTypeRequest(SiemensPlcProtocolContext context, int id, PlcBlockType type, byte sequenceNumber)
{
var result = new S7UserDataDatagram
{
Parameter = new S7UserDataParameter
{
ParamDataLength = sequenceNumber == 0x00 ? (byte)4 : (byte)8,
TypeAndGroup = ((byte)UserDataFunctionType.Request << 4) | (byte)UserDataFunctionGroup.Block,
SubFunction = (byte)UserDataSubFunctionBlock.ListType,
SequenceNumber = sequenceNumber,
ParameterType = sequenceNumber == 0x00 ? (byte)UserDataParamTypeType.Request : (byte)UserDataParamTypeType.Response
},
Data = new S7UserData
{
ReturnCode = (byte)ItemResponseRetValue.DataError,
TransportSize = (byte)DataTransportSize.Null
}
};
result.Header.ProtocolDataUnitReference = (ushort)id;
result.Header.DataLength = sequenceNumber == 0x00 ? (ushort)6 : (ushort)4;
result.Header.ParamLength = sequenceNumber == 0x00 ? (ushort)8 : (ushort)12;
result.Data.Data = sequenceNumber == 0 ? new byte[] { 0x30, (byte)type } : Array.Empty <byte>();
result.Data.UserDataLength = (ushort)result.Data.Data.Length;
return(result);
}
public static S7UserDataDatagram BuildBlockInfoRequest(SiemensPlcProtocolContext context, int id, PlcBlockType blockType, int blockNumber)
{
var result = new S7UserDataDatagram
{
Parameter = new S7UserDataParameter
{
ParamDataLength = 4,
TypeAndGroup = ((byte)UserDataFunctionType.Request << 4) | (byte)UserDataFunctionGroup.Block,
SubFunction = (byte)UserDataSubFunctionBlock.BlockInfo,
SequenceNumber = 0,
ParameterType = (byte)UserDataParamTypeType.Request
},
Data = new S7UserData
{
ReturnCode = (byte)ItemResponseRetValue.Success,
TransportSize = (byte)DataTransportSize.OctetString,
}
};
result.Header.ProtocolDataUnitReference = (ushort)id;
result.Header.DataLength = 12;
result.Header.ParamLength = 8;
result.Data.Data = new byte[] { 0x30, (byte)blockType, 0x00, 0x00, 0x00, 0x00, 0x00, 0x41 };
Encoding.Default.GetBytes(string.Format(CultureInfo.InvariantCulture, "{0:00000}", blockNumber)).AsSpan().CopyTo(result.Data.Data.Span.Slice(2, 5));
result.Data.UserDataLength = (ushort)result.Data.Data.Length;
return(result);
}
public static S7UserDataDatagram BuildBlocksCountRequest(SiemensPlcProtocolContext context, int id)
{
var result = new S7UserDataDatagram
{
Parameter = new S7UserDataParameter
{
ParamDataLength = 4,
TypeAndGroup = ((byte)UserDataFunctionType.Request << 4) | (byte)UserDataFunctionGroup.Block,
SubFunction = (byte)UserDataSubFunctionBlock.List,
SequenceNumber = 0,
ParameterType = (byte)UserDataParamTypeType.Request
},
Data = new S7UserData
{
ReturnCode = (byte)ItemResponseRetValue.DataError,
TransportSize = (byte)DataTransportSize.Null,
Data = Array.Empty <byte>(),
UserDataLength = 0
}
};
result.Header.ProtocolDataUnitReference = (ushort)id;
result.Header.DataLength = 4;
result.Header.ParamLength = 8;
return(result);
}
public static S7WriteJobAckDatagram Build(SiemensPlcProtocolContext context, int id, IEnumerable <WriteResultItem> vars)
{
var result = new S7WriteJobAckDatagram();
result.Header.Header.ProtocolDataUnitReference = (ushort)id;
if (vars != null)
{
result.ItemCount = (byte)vars.Count();
var numberOfItems = result.ItemCount;
foreach (var item in vars)
{
numberOfItems--;
result.Data.Add(new S7DataItemWriteResult
{
ReturnCode = (byte)item.ReturnCode
});
}
}
result.Header.Header.ParamLength = (ushort)2;
result.Header.Header.DataLength = (ushort)result.Data.Count;
result.ItemCount = (byte)result.Data.Count;
return(result);
}
public static S7CommSetupDatagram Build(SiemensPlcProtocolContext context)
{
//TODO we need a parameter for the UnitId
var result = new S7CommSetupDatagram
{
Parameter = new S7CommSetupParameterDatagram
{
MaxAmQCalling = context.MaxParallelJobs,
MaxAmQCalled = context.MaxParallelJobs,
PduLength = context.PduSize
}
};
return(result);
}
public static S7CommSetupDatagram Build(SiemensPlcProtocolContext context, int id)
{
//TODO we need a parameter for the UnitId
var result = new S7CommSetupDatagram
{
Parameter = new S7CommSetupParameterDatagram
{
MaxAmQCalling = context.MaxAmQCalling,
MaxAmQCalled = context.MaxAmQCalled,
PduLength = context.PduSize
}
};
result.Header.ProtocolDataUnitReference = (ushort)id;
return(result);
}
public static S7CommSetupAckDataDatagram BuildFrom(SiemensPlcProtocolContext context, S7CommSetupDatagram incoming)
{
context.MaxAmQCalling = Math.Min(incoming.Parameter.MaxAmQCalling, context.MaxAmQCalling);
context.MaxAmQCalled = Math.Min(incoming.Parameter.MaxAmQCalled, context.MaxAmQCalled);
context.PduSize = Math.Min(incoming.Parameter.PduLength, context.PduSize);
//TODO we need a parameter for the UnitId
var result = new S7CommSetupAckDataDatagram
{
Parameter = new S7CommSetupParameterDatagram
{
MaxAmQCalling = context.MaxAmQCalling,
MaxAmQCalled = context.MaxAmQCalled,
PduLength = context.PduSize
}
};
result.Header.Header.ParamLength = 8;
return(result);
}
public static S7WriteJobDatagram BuildWrite(SiemensPlcProtocolContext context, int id, IEnumerable <WriteItem> vars)
{
var numberOfItems = 0;
var result = new S7WriteJobDatagram();
result.Header.ProtocolDataUnitReference = (ushort)id;
if (vars != null)
{
foreach (var item in vars)
{
numberOfItems++;
result.Items.Add(new S7AddressItemSpecificationDatagram
{
TransportSize = S7AddressItemSpecificationDatagram.GetTransportSize(item.Area, item.VarType),
ItemSpecLength = item.NumberOfItems,
DbNumber = item.DbNumber,
Area = (byte)item.Area,
Address = S7AddressItemSpecificationDatagram.GetAddress(item.Offset, item.VarType)
});
}
foreach (var item in vars)
{
numberOfItems--;
result.Data.Add(new S7DataItemSpecification
{
ReturnCode = 0x00,
TransportSize = S7DataItemSpecification.GetTransportSize(item.Area, item.VarType),
Length = item.NumberOfItems,
Data = item.Data,
FillByte = numberOfItems == 0 || item.NumberOfItems % 2 == 0 ? Array.Empty <byte>() : new byte[1],
ElementSize = item.ElementSize
});
}
}
result.Header.ParamLength = (ushort)(2 + result.Items.Count * 12);
result.Header.DataLength = (ushort)(S7DataItemSpecification.GetDataLength(vars) + result.Items.Count * 4);
result.ItemCount = (byte)result.Items.Count;
return(result);
}
public static S7ReadJobAckDatagram Build(SiemensPlcProtocolContext context, int id, IEnumerable <ReadResultItem> vars)
{
var result = new S7ReadJobAckDatagram();
ushort dataLength = 0;
result.Header.Header.ProtocolDataUnitReference = (ushort)id;
if (vars != null)
{
result.ItemCount = (byte)vars.Count();
var numberOfItems = result.ItemCount;
foreach (var item in vars)
{
numberOfItems--;
result.Data.Add(new S7DataItemSpecification
{
ReturnCode = (byte)item.ReturnCode,
TransportSize = (byte)item.TransportSize,
Length = item.NumberOfItems,
Data = item.Data,
FillByte = numberOfItems == 0 || item.NumberOfItems % 2 == 0 ? Array.Empty <byte>() : new byte[1],
ElementSize = item.ElementSize
});
if ((dataLength % 2) != 0)
{
dataLength++;
}
dataLength += (ushort)item.Data.Length;
}
}
result.Header.Header.ParamLength = (ushort)2;
result.Header.Header.DataLength = (ushort)(dataLength + result.Data.Count * 4);
result.ItemCount = (byte)result.Data.Count;
return(result);
}
public static S7ReadJobDatagram BuildRead(SiemensPlcProtocolContext context, int id, IEnumerable <ReadItem> vars)
{
var result = new S7ReadJobDatagram();
result.Header.ProtocolDataUnitReference = (ushort)id;
if (vars != null)
{
foreach (var item in vars)
{
result.Items.Add(new S7AddressItemSpecificationDatagram
{
TransportSize = S7AddressItemSpecificationDatagram.GetTransportSize(item.Area, item.VarType),
ItemSpecLength = item.Length,
DbNumber = item.DbNumber,
Area = (byte)item.Area,
Address = S7AddressItemSpecificationDatagram.GetAddress(item.Offset, item.VarType)
});
}
}
result.Header.ParamLength = (ushort)(2 + result.Items.Count * 12);
result.ItemCount = (byte)result.Items.Count;
return(result);
}
