Video Grabber User Manual - v. 1.19 (FW 1.29)
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Appendix B: Status UDP frame structure
Video Grabber automatically broadcasts its status information using UDP port 6667. The frequency at
which this information is sent is configurable (See 4.2.1.6 Stat frame period, p. 25)
The structure of the frame is the following:
Type
Size (bytes) Name
Description
Table
4
MAGIC
Magic value, 4 bytes: 'V', 'G', 'S', 'T'
Unsigned char
1
VER
Structure version number: 1
Unsigned int
4
TIME_SEC
Time marker in seconds, where zero is
1970-01-01 00:00:00 +0000 (UTC)
Unsigned int
4
TIME_USEC
Time marker in microseconds, where zero is
1970-01-01 00:00:00 +0000 (UTC)
Unsigned int
4
UPTIME_SEC
Video grabber uptime in seconds
Unsigned char
1
LAN1_STAT
LAN1 link status:
0 – link down;
1 – 10Mb/s,
2 – 100Mb/s,
3 – 1000Mb/s
Unsigned char
1
LAN2_STAT
LAN2 link status:
0 – link down;
1 – 10Mb/s,
2 – 100Mb/s,
3 – 1000Mb/s
Signed char
1
TEMP_CPU
-127..128 Celsius degrees
Signed char
1
TEMP_PCB
-127..128 Celsius degrees
Unsigned char
1
PWR1_STAT
Power supply 1 status:
0 – down,
1 – up
Unsigned char
1
PWR2_STAT
Power supply 2 status:
0 – down,
1 – up
Unsigned int
4
SW_VER
Software version number
Unsigned char
1
DIG_VID_STAT Digital signal (DVI) status:
0 – not locked,
1 - locked
Unsigned char
1
Not used
Reserved for the future use
Unsigned short
2
HDR_CRC
16-bit CRC (crc16-ccitt) of this frame header,
counted on all fields, except this one
