Message Type - NEC LCD4010-BK - MultiSync - 40" LCD Monitor Manual

5. Message type

5.1 Get current Parameter from a monitor.
STX
st
1
Send this message when you want to get the status of a monitor.
For the status that you want to get, specify the "OP code page" the "OP code", refer to "Appendix
A. Operation code table".
st
1 byte) STX: Start of Message
ASCII STX (02h)
nd rd
2 -3 bytes) OP code page: Operation code page.
Specify the "OP code page" for the control which you want to get the status.
Refer to "Appendix A Operation code table" for each item.
OP code page data must be encoded to ASCII characters.
Ex.) The byte data 02h must be encoded to ASCII characters '0' and '2' (30h and 32h).
OP code page 02h ->
Refer to Operation code table. (Appendix A)
th th
4 –5 bytes) OP code: Operation code
Refer to "Appendix A Operation code table" for each item.
OP code data must be encoded to ASCII characters.
Ex.) The byte data 3Ah must be encoded to ASCII characters '3' and 'A' (33h and 41h).
OP code 3Ah ->
Refer to Operation code table.
th
6 byte) ETX: End of Message
ASCII ETX (03h)
5.2 "Get parameter" reply
Result OP code page
STX
Hi Lo Hi
st nd rd
1 2 -3
LCD4010/LCD4610 replies with a current value and the status of the requested item (operation code).
st
1 byte) STX: Start of Message
ASCII STX (02h)
nd rd
2 -3 bytes) Result code.
OP code page OP code
Hi Lo Hi
nd rd th
2 -3 4 –5
OP code page (Hi) = ASCII '0' (30h)
OP code page (Lo) = ASCII '2' (32h)
OP code (Hi) = ASCII '3' (33h)
OP code (Lo) = ASCII 'A' (41h)
OP code
Lo Hi Lo
th th th th
4 –5 6 –7
ETX
Lo
th th
6
Type Max value
Hi Lo MSB
th th th
8 -9 10
(6/37)
Current Value
LSB MSB
th th
-13 14 -17
ETX
LSB
th th
18