Communication Protocol
11
7 Communication Protocol
The
FC-6801
is compatible with Kramer’s Protocol 2000
1
(version 0.43).
This RS-232 / RS-485 communication protocol uses four bytes of information
as defined below. For RS-232, a null-modem connection between the
machine and controller is used. The default data rate is 9600 baud, with no
parity, 8 data bits and 1 stop bit. Table 6 defines the Hex Code commands and
Table 7 lists the Hex Codes for the AUDIO DELAY settings.
Table 6: Hex Code Commands
Command Name
Hex Send
Hex Receive
Function
Reset
00 80 80 92
40 80 80 92
Reset the machine
Factory default
00 81 80 92
40 81 80 92
Set machine to factory default
Identify machine
3D 81 81 92
7D E8 81 92
Sw rev
3D 83 80 92
7D 8
R1
8
R2
92
Software revision
Group select
01 8
GR
80 92
41 8
GR
80 92
Audio group select
Set delay
02
DL
80 92
42
DL
80 92
Set audio delay time
Read led's
05 80 80 92
45
LED
1
LED
2 92
Read the LED's status
Read delay
06 80 80 92
46
DL
80 92
Read the delay settings
NOTES on the above table:
NOTES on the above table:
NOTE 1
-
R1
– Sw revision number.
NOTE 2
-
R2
– Sw sub revision number.
NOTE 3
-
GR
– audio group number:
0 mute
1 group 1
2 group 2
3 group 3
4 group 4
NOTE 4
-
DL
– delay time:
The MSB (bit(7)) should be '1'
Bits [6..0] set the delay time in steps of 8ms
To set no delay send "10000000"
To set a delay of 8ms send "10000001"
To set a delay of 16ms send "10000010"
To set delay of 1.024 sec, send "11111111"
To send any value in the middle, use the appropriate number
NOTE 5
-
LED
1 – reply of the status of the following:
The MSB (bit(7)) will be '1'
Bits [6..4] – audio group:
0 mute
1 group 1
2 group 2
3 group 3
4 group 4
bits[3..0] – Audio channel status – '1' on, '0' off
bit(3) channel 4
bit(2) channel 3
bit(1) channel 2
bit(0) channel 1
NOTE 6
-
LED
2 – Video & audio status
Bits[7..4] are "1000"
Bit(3) when audio is detected in the video stream this bit will be '1' else '0'
Bit(2) when video is detected this bit will be '1' else it will be '0'
Bit(1) video standard '0' for PAL, '1' for NTSC
Bit(0) if 24 bit of audio is detected '1', else '0'
1 See the Technical Support section of our Web site: http://www.kramerelectronics.com
