Teklynx COMet, Быстрое руководство

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Page 2 -- 15 Quick Guided Tour
S
Enter ” ^A*^B ”.
^A : message start character,
* : joker replacing a given number of characters,
^B : message stop character.
" " " "
Data Extraction
In this step, we will define the structure and nature of the
message, and specify which part of the message we want to
retrieve.
L
O
N
M
K
Figure 15 Data Extraction
Key:
K
We know that the message is of variable length .
L
The first data byte is placed in second position, after the
message start byte.
M
The stop character is ^B.
N
We want an offset of -1 byte to exclude the check character
(it is not necessary to keep this information, since the labeling
program recalculates the check character).
O
Coding is Alphanumerical ; bytes received will be transmit-
ted without being converted.
Using the Example box, check that the message features the
correct parameters.