protected RequestItem(PlcArea area, ushort dbNumber, ushort numberOfItems, int offset, DataTransportSize transportSize, ushort elementSize, Memory <byte> address)
{
Area = area;
DbNumber = dbNumber;
NumberOfItems = numberOfItems;
Offset = offset;
TransportSize = transportSize;
Address = address;
ElementSize = elementSize;
}
private static ushort TransportSizeToElementSize(DataTransportSize t) => t switch
{
protected void DetermineTransportAndElementSize(PlcArea area, ItemDataTransportSize t)
{
if (area == PlcArea.CT || area == PlcArea.TM)
{
TransportSize = DataTransportSize.OctetString;
ElementSize = 2;
return;
}
switch (t)
{
case ItemDataTransportSize.Bit:
{
TransportSize = DataTransportSize.Bit;
ElementSize = 1;
}
break;
case ItemDataTransportSize.Byte:
case ItemDataTransportSize.Char:
{
TransportSize = DataTransportSize.Byte;
ElementSize = 1;
}
break;
case ItemDataTransportSize.Word:
{
TransportSize = DataTransportSize.Byte;
ElementSize = 2;
}
break;
case ItemDataTransportSize.Int:
{
TransportSize = DataTransportSize.Int;
ElementSize = 2;
}
break;
case ItemDataTransportSize.Dword:
{
TransportSize = DataTransportSize.Byte;
ElementSize = 4;
}
break;
case ItemDataTransportSize.Dint:
{
TransportSize = DataTransportSize.Dint;
ElementSize = 4;
}
break;
case ItemDataTransportSize.Real:
{
TransportSize = DataTransportSize.Real;
ElementSize = 4;
}
break;
default:
{
TransportSize = DataTransportSize.Byte;
ElementSize = 1;
}
break;
}
}
internal WriteRequestItem(PlcArea area, ushort dbNumber, ushort numberOfItems, int offset, DataTransportSize transportSize, ushort elementSize, Memory <byte> address, Memory <byte> data)
: base(area, dbNumber, numberOfItems, offset, transportSize, elementSize, address)
{
Data = data;
}
