TSI Instruments SIZER EEPS 3090, Руководство по эксплуатации и обслуживанию

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F-2 Model 3090/3090AK Engine Exhaust Particle Sizer
TM
Spectrometer
Protocol Specifications
The AK-Protocol is a text-based only protocol. Each telegram begins with
STX
(Start of Text) in the first byte. The “don't care” byte can be any ASCII
character. The next four bytes represent the command. A blank comes
next, followed by K and the channel number. For delimiting the command
parameters from the channel number another blank follows. This may be
followed by command parameters with a variable length. Every telegram
ends with the
ETX (End of Text) character.
Instruction Telegram
Byte Character Hex Code Description
1
st
Byte STX 02 Start Byte
2
nd
Byte
Don’t Care
20 Any hex code, default blank
3
rd
Byte Function Code 1
Function Code
e.g.: ATEM 4
th
Byte Function Code 2
5
th
Byte Function Code 3
6
th
Byte Function Code 4
7
th
Byte Blank 20 Blank
8
th
Byte K 4B K for channel (always 0)
9
th
Byte Number Channel Number
10
th
Byte Blank 20 Blank
11
th
Byte Data
Data sent with function
. Data
. Data
. Data
n
th
Byte ETX 03 End Byte
Acknowledgement Telegram
Byte Character Hex Code Description
1
st
Byte STX 02 Start Byte
2
nd
Byte
Don’t Care
20 Any hex code, default blank
3
rd
Byte Function Code 1
AK Instruction
e.g.: ATEM
4
th
Byte Function Code 2
5
th
Byte Function Code 3
6
th
Byte Function Code 4
7
th
Byte Blank 20
8
th
Byte Error Status
0 when no error, 1...9,
+1 every error status
change
9
th
Byte Blank 20
10
th
Byte Data
AK instruction data, length is
variable
. Data
. Data
. Data
n
th
Byte ETX 03 End Byte