User's Manual

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External Control NEC LCD Monitor
Rev.2.0 (G2)
INDEX
I. Application ................................................................................ 4
II. Preparation ............................................................................... 5
2. Connectors and wiring .................................................................... 5
2.1 RS-232C Remote control ............................................................... 5
2.2 LAN control ........................................................................... 5
III. Communication specification ............................................................... 7
3. Communication Parameter ................................................................ 7
3.1 RS-232C Remote control ............................................................... 7
3.2 LAN control ........................................................................... 7
3.3 Communication timing ................................................................. 7
4. Communication Format ................................................................... 8
4.1 Header block format (fixed length) ...................................................... 9
4.2 Message block format ................................................................ 11
4.3 Check code .......................................................................... 13
4.4 Delimiter ............................................................................ 14
5. Message type ........................................................................... 15
5.1 Get current Parameter from a monitor. ................................................. 15
5.2 "Get parameter" reply ................................................................. 16
5.3 Set parameter ........................................................................ 18
5.4 "Set parameter" reply ................................................................. 19
5.5 Commands ........................................................................... 20
5.5.1 Save Current Settings . ............................................................ 20
5.5.2 Get Timing Report and Timing reply. ................................................ 21
5.5.3 NULL Message .................................................................... 22
IV. Control Commands ....................................................................... 23
6. Typical procedure example ............................................................... 23
6.1. How to change the “Backlight” setting. ................................................ 23
6.2. How to read the measurement value of the built-in temperature sensors. .................. 26
6.3. Operation Code (OP code) Table ....................................................... 29
7. Power control procedure ................................................................. 44
7.1 Power status read .................................................................... 44
7.2 Power control ........................................................................ 46
8. Asset Data read and write ................................................................ 48
8.1 Asset Data Read Request and reply .................................................... 48