GetUint8 - method of the PmBuffer object

Reading integer 1 byte unsigned value.
Long GetUint8(Long nOffset)
nOffset(Long) Specifies the position of read value in the data block.
The read value must be inside the data block. The item is read either whole or not read at all.
>= 0 - Index (in bytes, zero-based index) in data block.
-4 - The internal automatic position is used (see the AutoOffset property). It points behind the last read or written value and increases continually.
If the items are read/written one by one then it is not necessary to define the position, but it is better to use this automated positioning.
This method is also functional in Web panels.
See also:
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var oBuf = Pm.CreatePmBuffer();
oBuf.SetUint8(-2, 127);
oBuf.SetUint8(-2, -11);

var val0 = oBuf.GetUint8(0);
var val1 = oBuf.GetUint8(1);   // val1 = 0
// or
oBuf.AutoOffset = 0;
var val0 = oBuf.GetUint8(-4);
var val1 = oBuf.GetUint8(-4);   // val1 = 0

Pm9.00.04: Created
PROMOTIC 9.0.17 SCADA system documentation - MICROSYS, spol. s r.o.

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