NEC V422-PC User's Manual
(1/71)
EXTERNAL CONTROL NEC LCD Monitor
Rev.2.6
INDEX
I. Application ................................................................................3
II. Preparation ...............................................................................4
2. Connectors and wiring ....................................................................4
2.1 RS-232C Remote control ...............................................................4
2.2 LAN control ...........................................................................4
III. Communication specification...............................................................5
3. Communication Parameter ................................................................5
3.1 RS-232C Remote control ...............................................................5
3.2 LAN control ...........................................................................5
3.3 Communication timing .................................................................5
4. Communication Format ...................................................................6
4.1 Header block format (fixed length) ......................................................7
4.2 Message block format .................................................................9
4.3 Check code ..........................................................................11
4.4 Delimiter ............................................................................12
5. Message type ...........................................................................13
5.1 Get current Parameter from a monitor. .................................................13
5.2 "Get parameter" reply.................................................................14
5.3 Set parameter........................................................................15
5.4 "Set parameter" reply .................................................................16
5.5 Commands...........................................................................17
5.5.1 Save Current Settings. ............................................................17
5.5.2 Get Timing Report and Timing reply. ................................................18
5.5.3 NULL Message....................................................................19
IV. Control Commands .......................................................................20
6. Typical procedure example...............................................................20
6.1. How to change the “Backlight” setting. ................................................20
6.2. How to read the measurement value of the built-in temperature sensors...................23
6.3. Operation Code (OP code) Table.......................................................26
7. Power control procedure .................................................................35
7.1 Power status read ....................................................................35
7.2 Power control ........................................................................37
8. Asset Data read and write................................................................39
8.1 Asset Data Read Request and reply ....................................................39
8.2 Asset Data write .....................................................................41
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