41
4-2
.
UDP Remote Control
4-2-1.
Outline
MFPR-3100 can be remotely controlled by the Ethernet UDP protocol.
The MFPR-3100 UDP protocol uses the SONY RS-422 compatible [
VTR control protocol
] and
dedicated [
Disk control protocol
] that is extended to control our Disk Recorders.
4-2-2.
Structure of communication data
The data format is that the commands and the status are described on the payload in the
Ethernet UDP packets.
フ
4-2-3.
UDP Port
The UDP port number is as follows:
Channel A
=
20000
Channel B
=
20001
4-2-4.
9-pin Compatible VTR control command format
Communication between control systems and this product uses the following command telegram
format: CMD 1/Data count, CMD 2, and data checksum (CHECKSUM). If Data count is zero, no
data is transmitted. If it is not zero, the data corresponding to the existing values are inserted
between CMD2 and CHECKSUM.
CMD 1
Data
length
CMD 2
DATA 1
--------
DATA N
N=15max
CHECKSUM
・
CMD 1:
CMD 1 assigns the command to the following main function groups that serve to
define the function, and the transfer direction of the data words that follows.
CMD 1
Function
Transfer direction
Controller---Recorder
0
System control
1
System control-Return message
2
Recorder control
4
Setup and selection control
8
Data request
7
Data request-Return message
Bit
4-7
Bit
0-3