NEC LCD4010-BK LCD4010 external control command - Page 7

These bytes indicate a result of the requested commands as follows, 00h: No Error. 01h: Unsupported operation with this monitor or unsupported operation under current condition. This result code from the monitor is encoded to ASCII characters. Ex.) The byte data 01h is encoded to ASCII character '0' and '1' (30h and 31h). 4th-5thbytes) OP code page: Operation code page. These bytes indicate a replying item's OP code page. This returned value from the monitor is encoded to ASCII characters. Ex.) The byte data 02h is encoded to ASCII character '0' and '2' (30h and 32h). Refer to the operation codes table. 6th -7thbytes) OP code: Operation code These bytes indicate a replying item's OP code. This returned value from the monitor is encoded to ASCII characters. Refer to the operation code table. Ex.) The byte data 1Ah is encoded to ASCII character '1' and 'A' (31h and 41h). 8th -9thbytes) Type: Operation type code This returned value from the monitor is encoded to ASCII characters. Ex.) The byte data 01h is encoded to ASCII character '0' and '1' (30h and 31h). 00h: Set parameter 01h: Momentary Like the AutoSetup function which automatically changes the parameter. 10th-13thbytes) Max. value: Maximum value which monitor can accept. (16bits) This returned value from the monitor is encoded to ASCII characters. Ex.) '0','1','2' and '3' means 0123h (291) 14th -17thbytes) Current Value: (16bits) This returned value from the monitor is encoded to ASCII characters. Ex.) '0','1','2' and '3' means 0123h (291) 18thbyte) ETX: End of Message ASCII ETX (03h) 5.3 Set parameter STX OP code page Hi Lo OP code Hi Lo Set Value MSB LSB ETX 1st 2nd-3rd 4th-5th 6th-9th 10th Send this message to change monitor's adjustment and so on. The controller requests a monitor to change value. 1stbyte) STX: Start of Message ASCII STX (02h) 2nd-3rdbytes) OP code page: Operation code page (7/37)