Transmission Channel Characteristics; Message Structure - Varian PTB Turbo V 700 HT 969 9445 Notice D'emploi

Transmission Channel Characteristics

levels:
baud rate:
character length:
parity:
stop bit:
protocoll:
max. devices:

Message Structure

(request and answer have the same format)
The master system (PC) starts every session sending the following
message to the slave units connected:
<STX> / <ADDR> + <WINDOW> + <COMMAND> + <DATA> + <ETX>
+ <CRC>
where:
<STX>=
<ADDR> =
<WINDOWS>=
<COMMAND>= 0x30: window value reading
Turbo-V 700HT Controller User Manual / 87-900-877-01 (F)
RS 485
9600/4800/2400/1200/600 programmable
8 bits
none
1 bit
master (PC) / slave (converter)
32
0x02
0x80 + device number (0...31)
0xFF: brodcasting command (recognized by all the
devices, it doesn't implicate any answer)
(for RS 485 only)
' 000 '...' 999' window number the meaning of the
window depends to the device type
0x31: window writing
Technical Information
Optional Serial Port
263/304
17