Rs-485 Return Commands - Sony SVT-RS100 Manual De Instrucciones

Command Reference

RS-485 Return Commands

When the RS-485 connector is used and you operate
on the VCR, the VCR automatically returns a status
information in 2 bytes.
TXD
RXD BE/BF
First byte: Header (BEH or BFH)
Second byte: Status information
Each bit of the second byte is as follows:
When first byte is BEH
Bit 0, 1, 2, 3, 4, 5, 6, 7: displays what mode the VCR is
in.
0: the VIDEO input signal is interrupted (VIDEO
LOSS).
1: the VCR starts checking the tape thread (THREAD
CHECK).
2: 0
3: 0
4: 0
5: 0
6: 0
7: 0
When first byte is BFH
Bit 0, 1, 2, 3, 4: displays what mode the VCR is in.
0,0,0,0,0: no change
1,0,0,0,0: the VCR is turned on without a tape.
0,1,0,0,0: the VCR is turned off without a tape.
1,1,0,0,0: the VCR is turned on with a tape inserted.
0,0,1,0,0: the VCR is turned off with a tape inserted.
1,0,1,0,0: the VCR is in timer recording standby mode.
0,1,1,0,0: the VCR is playing back still picture.
1,1,1,0,0: the VCR is in recording pause mode.
0,0,0,1,0: the VCR is playing back a tape.
1,0,0,1,0: the VCR is recording.
0,1,0,1,0: the VCR is playing back a tape in reverse
direction.
1,1,0,1,0: the VCR is fast-forwarding during playback
(CUE).
0,0,1,1,0: the VCR is rewinding during playback
(REVIEW).
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1,0,1,1,0: the VCR is fast-forwarding a tape.
0,1,1,1,0: the VCR is rewinding a tape.
1,1,1,1,0: the VCR is playing back frame by frame.
0,0,0,0,1: the VCR is playing back frame by frame in
reverse direction.
Bit 5, 6: displays when the VCR starts or ends the
alarm recording.
0,0: the VCR is in normal mode.
0,1: the VCR starts the alarm recording.
1,0: the VCR ends the alarm recording.
Bit 7: indicates warning.
1: the VCR has a mechanical problem.
0: normal