
6
DESCRIPTION
ENGLISH
STANDARD Communication Protocol
3.4 Parameter Setting Sequence
By the master, a programming sequence is sent to the instrument (slave) to change specifi c
parameters (instrument confi guration). The following description shows the correct sequence of
characters for a proper command.
<STX>SA1T120050W84=0A<ETX>($67)
[begin block character]
[instrument identifi cation]
[command]
[new value]
[end block character]
[check character]
[begin block character]
It is always <STX> ($02) character.
[instrument identifi cation]
It is usually represented by the Logical Number ($01...$FF). The S ($53) character can also be
used followed by the instrument Serial Number (9 alphanumeric characters).
[command]
It is always W ($57) character followed by the variable number to be changed (see section 4.3)
expressed in hexadecimal by two alphanumeric characters and always followed by the character
=($3D).
[new value]
It is a series of alphanumeric characters which express the new value, according to the assigned
parameter (see section 2.3).
[end block character]
It is always <ETX> ($03) character.
[check character]
It is a single character resulting from EXCLUSIVE OR (XOR) of all the characters from <STX> up
to and including <ETX>. It is used to check the transmitted data.