Agilent Technologies TwisTorr 304 FS on board Controller Notice De Mode D'emploi page 164

17 Technical Information
RS 232/RS 485 communication description
Examples:
Command: START
Source: PC
Destination: Controller
02
STX
Source: Controller
Destination: PC
02
STX
Command: STOP
Source: PC
Destination: Controller
02
STX
Source: Controller
Destination: PC
02
STX
164/179
80 30 30
ADDR WINDOW
80 06 03
ADDR ACK ETX
80 30 30
ADDR WINDOW
80 06 03
ADDR ACK ETX
TwisTorr 304 FS on board Controller User Manual / 87-901-028-01 (A)
30 31 31
WR ON
38 35
CRC
30 31 30
WR OFF
38 35
CRC
03 42 33
ETX CRC
03 42 32
ETX CRC