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SetUint8 - method of object PmBuffer

Description:
Writing integer 1 byte value with no sign.
Syntax:
Empty SetUint8(Long nOffset, Long nValue)
Calling:
PmBuffer.SetUint8(nOffset, nValue)
Parameters:
nOffset(Long) Defines the position of written value in the data block.

The whole written item muyst be inside the data block, or the whole item is added to the end of the data block. The item is written either whole or not read at all.

>= 0 - Index (in bytes, zero-based index) in data block.
-2 - The whole item is added to the end of the data block. The size of the data bloc is then increased by the written item.
-4 - The internal automatic position is used (see AutoOffset). 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.

nValue(Long) Written value.
Note:
This method is also functional in Web panels.
See also:

History:
Pm9.00.04: Created
PROMOTIC 9.0.7 SCADA system documentation - MICROSYS, spol. s r.o.

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