7
The ACK message is not returned for these
commands and inquiries, and only the
completion message of socket number 0 is
returned.
Command execution cancel
To cancel a command which has already been
sent, send a Cancel command as the next
command. To cancel one of two commands
which have been sent, use the cancel message.
Error message “Command Canceled” will be
r
eturned for this command, but this is not a fault.
It indicates that the command has been
cancelled.
Note
To cancel a command when VISCA PAN-TILT Drive
(page 21) is being executed, wait at least 200
msec after executing. Then send a cancel
c
ommand to ensure that PAN-TILT Drive stops
effectively.
To execute a PAN-TILT Drive command again,
w
ait at least 200 msec after the message
“Command Canceled” has appeared.
VISCA Device Setting Command
Before starting control of the unit, make sure to
send the Address Set command and IF_Clear
command using the broadcast.
For VISCA network administration
• Address Set*
Sets an address of a peripheral device. Use
wh
en initializing the network, and receiving the
following network change message.
* Not available for VISCA over IP.
• Network Change*
Sent from the peripheral device to the
c
ontroller when a device is removed from or
added to the network. The address must be re-
set when this message is received.
* Not available for VISCA over IP.
VISCA interface command
• IF_Clear
Clears the command buffer in the unit. When
cl
eared, the operation currently being
executed is not guaranteed.
* Not available for VISCA over IP.
VISCA interface and inquiry
• CAM_VersionInq
Returns information on the VISCA interface.
Cancel Packet
Cancel 8X 2Z FF
X = 1 to 7: Address of the unit (Locked to “X = 1” for VISCA over
IP)
Z = socket number
Packet
Address Set 88 30 01 FF
Network Change Y0 38 FF
Y = 9 to F: Address of the unit + 8
Command
Packet
Reply Packet
IF_Clear 8X 01 00 01 FF Y0 50 FF
IF_Clear (broadcast)
*
88 01 00 01 FF 88 01 00 01 FF
X = 1 to 7: Address of the unit (Locked to “X = 1” for VISCA over
IP)
Y = 9 to F: Address of the unit +8 (Locked to “Y = 9” for VISCA
over IP)
Inquiry Packet Reply Packet
CAM_VersionInq 8X 09 00 02 FF Y0 50 GG GG HH HH JJ JJ KK FF
X = 1 to 7: Address of the unit (Locked to “X = 1” for VISCA over IP)
Y = 9 to F: Address of the unit +8 (Locked to “Y = 9” for VISCA over IP)
GGGG = Vender ID
0001: Sony
HHHH = Model ID
061F:SRG-X40UH
0620:SRG-H40UH
JJJJ = ROM revision
KK = Maximum socket # (02)
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