JVC PK-VS4GD, Инструкция по эксплуатации

Страница: 15 / 28

15
Control of this unit via computer is possible by connecting the computer to this unit with a RS-232C cross cable (D-Sub 9 pin).
Communication Format
Data Format
䡵 Command format
RS-232C Interface
Synchronous system Asynchronous
Baud rate 19,200 bps
Start bit 1 bit
Data bit 8 bit
Parity bit None
Stop bit 1 bit
Flow control None
Item Length Description Note
Header 1 The beginning of data and
data type ‘!’ (21) : Command to set or control
‘?’ (3F): Query command
ID 1 Identification number of
PK-VS4GD. ‘0’ (30) : All connected PK-VS4GD
‘1’ (31) to ‘9’ (39) : Designated PK-VS4GD
‘A’ (41) to ‘F’ (46) : Designated PK-VS4GD
‘a’ (61) to ‘ f ’ (66) : Designated PK-VS4GD
SP 1 Separation between ID
and command ‘ ’ (20): Separation
Command n Command ‘Ixx’: Command code
SP 1 Separation between
command and parameter ‘ ’ (20): Separation
Parameter 1 Parameter Parameter is set from none to “n” depending on the command.
SP 1 Separation between
parameter and parameter ‘ ’ (20): Separation
Parameter 2 n Parameter Parameter is set from none to “n” depending on the command.
SP 1 Separation between
parameter and parameter ‘ ’ (20): Separation
···
Parameter n
n Parameter Parameter is set from none to “n” depending on the command.
CR 1 End of command (0D): Indicates the end of data.
Header
CR
ID SP
SP SP SP
Command
I
Parameter 1 Parameter 2
PK-VS4GD.book Page 15 Tuesday, March 10, 2009 5:30 PM