in bytes where p [...] of Bytes written to pData
TO ARRAY [0..0] OF BYTE [...] TO ARRAY [0..0] OF BYTE
Index WORD bySubindex BYTE [...] Buffer POINTER TO BYTE sz
, 115200 byStopBits BYTE [...] Parity BYTE 0 = NOPARITY, 1
..255] OF BYTE pointer to send [...] ..255] OF BYTE pointer
IDN DWORD byElem BYTE udi [...] [1..4] OF BYTE usi
IDN DWORD byElem BYTE udi [...] [1..4] OF BYTE usi
quality BYTE Quality [...] ..0] OF BYTE Array
St1 POINTER TO BYTE udi [...] TO BYTE udiLen2 UDINT
CallbackFunction POINTER TO BYTE Address [...] UserParameter POINTER TO BYTE Pointer