RS232 Protocol NSL-4601
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2) Ack type2 : This is used for updating all the same group menu items.
Reply to PC (Only for single monitor)
ID
3~5 Bytes
Cmd[0]
Data[0]
Data End[0]
4 Byte
1~3 Bytes
2 Byte
Cmd[1]
Data[1]
Data End[1]
4 Byte
1~3 Bytes
2 Byte
.
.
.
Cmd[n]
Data[n]
Data End[n]
4 Byte
1~3 Bytes
2 Byte
Ack
1 Byte
3) Nack
ID
Nack
3~5 Bytes
1 Byte
4) Skip : no reply.
ID
3~5 Char identifier (“(0)”-“(255)”) is used for the selected
device in the serial chain.
This ID show you the correct destination of command.
Cmd
or
Cmd[n]
4 Char command Identifier(“***=”) corresponding to the
“original MWCP protocol”.
Data
or
Data[n]
3~5 Char command Identifier ( “(0)”-“(255)” )
corresponding to the “original MWCP protocol”.
Data End
or
Data End[n]
2 Char command Identifier(“\r\n”) is used to define the end
of data.
Ack/Nack
Ack : hexa 0x06 is used ,
The monitor received a valid command and was able to
immediately process the command within given timeout
conditions.
Nack : hexa 0x15 is used.
The monitor received correct head and ID command but
received invalid format or unknown or unsupported
command or parameter value. This answer is also send
when the current device state does not allow the
