public static HashSet <ReadOperandsRequest> CreateMultiple(UnitronicsPLC plc, Dictionary <OperandType, HashSet <ushort> > operandAddresses)
{
HashSet <ReadOperandsRequest> requests = new HashSet <ReadOperandsRequest>();
foreach (OperandType operand in operandAddresses.Keys)
{
byte operandLength = calculateOperandMessageLength(operand);
int maximumReceiveLength = plc.BufferSize - Response.STX.Length - Response.UnitIDLength - Response.CommandLength - Response.CRCLength - Response.ETXLength;
ReadOperandsRequest request = null;
foreach (ushort address in operandAddresses[operand].OrderBy(address => address))
{
if (request != null)
{
int newLength = address - request.StartAddress + 1;
if (newLength * operandLength > maximumReceiveLength || newLength > MaximumOperandsLength)
{
requests.Add(request);
request = CreateNew(plc, operand, address, 1);
}
else
{
request.Length = (byte)newLength;
}
}
else
{
request = CreateNew(plc, operand, address, 1);
}
}
if (request != null && request.Length > 0)
{
requests.Add(request);
}
}
return(requests);
}
public static ReadOperandsResponse UnpackResponseMessage(ReadOperandsRequest request, Memory <byte> responseMessage)
{
return(new ReadOperandsResponse(request, responseMessage));
}
