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DESCRIPTION
ENGLISH
STANDARD Communication Protocol
3.3.1 Response Sequence
When the instrument, with the corresponding Serial Number or Logical Number, received a read
command, it replies with the following message.
<STX>+380.0<SP>.....<ETX><BCC>
[begin block character]
[data block]
[end block character]
[check character]
[begin block character]
It is always <STX> ($02) character.
[data block]
The data block format changes according to the sent command.
1. Data block of a variables group.
+380.0<SP>+13.38k...........+123.380k
Algebraic sign
Variable value with decimal point
Multiplier (see the following table)
Character Meaning Multiplier
<SP>
space
1
k
kilo
1000
M
Mega 1000000
G
Giga
1000000000
4. Error reply.
Ennn
Error code ($45)
Code relative to the error type
[end block character]
It is always <ETX> ($03) character.
[check character]
It is a single character which results from EXCLUSIVE OR (XOR) of all the characters from <STX>
up to and including <ETX>. It is used to check the transmitted data.