Varian PTB Turbo V 700 HT 969 9445 Notice D'emploi page 264

17 Technical Information
Optional Serial Port
<DATA> =
<ETX>=
<CRC>=
1 When a slave device is addressed by the master:
In case of reading request of the value contained in a window, the
slave answers a string equal to the one sent by the master but in
addition there is the field <DATA> containing the value of the
window.The format of the field <DATA> depends to the window
type.
The different types are:
Tab. 14
Logic (L)
Numeric (N)
Alphanumeric (A)
264/304
alphanumeric ASCII string containing, in the case of
writing operation,the parameter to input into the
window addressed by the field <WINDOW>This
field may have variable length according to the data
type contained in the windo where you are working
in. In the case of reading request of a window, the
data field doesn't exist.
0x03
XOR among all the characters following
<STX> = (with exception of <STX>), including the
end character <ETX> hexadecimally encoded by two
ASCII characters.
Length
1
6
max 10
Turbo-V 700HT Controller User Manual / 87-900-877-01 (F)
Characters Permitted
'0'=OFF
'1'=ON
'0'...'9'
(Justifield to the right with '0')
' '...'_'