NEC LCD3210-BK MultiSync LCD3210 Users Manual - Page 31

Using the LCD with a Personal Computer -continued 3) Control sequence (1) The command from a personal computer to the LCD monitor will take 400ms. (2) The LCD monitor will send a return command 400ms* after it has received an encode. If the command isn't received correctly, the LCD monitor will not send the return command. (3) The personal computer checks the command and confirms if the command which has been sent has been executed or not. (4) This LCD monitor sends various codes other than the return code. When sending a control sequence via RS-232C, other codes from personal computers will be ignored. *: The sending time of the return command may be delayed depending on the monitor's current activity (changing of the input signal, etc.). [Example] Turn the power ON ( ' ' is for ASCII code) Sending commands from the PC etc. 30 30 21 0D '0' '0' '!' ' ' Status code from LCD monitor 30 30 21 0D '0' '0' '!' ' ' Meaning Command for POWER ON Command received (Command echo back) 4) Operation commands The operation commands execute the basic operation setting of this LCD monitor. It may not operate when changing the signal: Operation POWER ON POWER OFF INPUT RGB 1 INPUT RGB 2 INPUT RGB 3 INPUT VIDEO INPUT DVD/HD INPUT S-VIDEO* ASCII ! " _r1 _r2 _r3 _v1 _v2 _v3 HEX 21h 22h 5Fh 72h 31h 5Fh 72h 32h 5Fh 72h 33h 5Fh 76h 31h 5Fh 76h 32h 5Fh 76h 33h • POWER OFF command should not be used less than 1 minute after the power is turned on. • POWER ON command should not be used less than 1 minute after the power is turned off. • S-VIDEO IS SEPARATE only. 5) Read command Host computer sends the command without Data-code to monitor. After receiving this command, the monitor returns the command with Data-code of current status to host computer. When Host computer checks the Power status of monitor, the status of monitor is powered-on. Command from computer 30 30 76 50 0D '0''0''v''P'[enter] Command from Monitor 30 30 76 50 31 0D '0''0''v''1'[enter] Detail of command Ask about the power status of monitor. Monitor is powered-on. AV Denotes an AV unit function. All AV functions are enabled when the AV unit is installed. English-30