Sanyo VZU-485 Instruction Manual page 15

RS232C (RF4QR/NA GB Operation Board)
Fri. Sept., 06/2002
COMMANDS (RS-485 only)
When using the RS-485 interface and operations are
carried out at the VCR, the VCR automatically returns a
2-byte data code based on the current setting.
RXD
TXD BE/BF
First byte: Header (BEH or BFH)
Second byte: State change information
The second byte indications are as follows:
When the first byte is "BEH"
Bit 0 ~ 7
Mode indication.
BIT Content when the bit is 0.
VIDEO LOSS The video input signal is
0
no longer present (VIDEO
LOSS).
1 THREAD CHECK Thread check start.
TAPE Tape management start.
2
MANAGEMENT
3 Undefined Always 0.
4 Undefined Always 0.
5 Undefined Always 0.
6 Undefined Always 0.
7 Undefined Always 0.
When the first byte is "BFH"
Bits 0, 1, 2, 3, 4
State information.
0 0 0 0 0 No change.
1 0 0 0 0 No tape, power is on.
0 1 0 0 0 No tape, power is off.
1 1 0 0 0 Tape present, power is on.
0 0 1 0 0 Tape present, power is off.
1 0 1 0 0 Timer recording standby mode.
0 1 1 0 0 Still image playback start.
1 1 1 0 0 Recording pause.
0 0 0 1 0 Playback start.
1 0 0 1 0 Recording start.
0 1 0 1 0 Reverse playback start.
1 1 0 1 0 Forward picture search start.
0 0 1 1 0 Reverse picture search start.
1 0 1 1 0 Fast forward start.
0 1 1 1 0 Rewind start.
1 1 1 1 0 Field advance start.
0 0 0 0 1 Reverse field advance start.
Bits 5, 6
Alarm recording start and stop.
0 0 Normal
0 1 Alarm recording start
1 0 Alarm recording stop
Bit 7
Warning state.
A flat (non-recording, mechanical trouble or
1
clog detection) has occurred.
0 Normal
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