NEC LCD4620-2-IT LCD4020/4620/5220/6520, M40/M46 external control commands - Page 27

'0'-'4'(30h, 34h): Enable, once ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet 3) The controller requests the monitor to write Enable/Disable Schedule. Header Message Check code Delimiter SOH-'0'-Monitor ID-'0'-'A'-'0'-'A' STX-'C'-'2'-'1'-'5'-PG-EN-ETX BCC CR Header SOH (01h): Start Of Header '0' (30h): Reserved Monitor ID: Specify the Monitor ID of which you want to change a setting. Ex.) If Monitor ID is '1', specify 'A'. '0' (30h): Message sender is the controller. 'A' (41h): Message type is "Command". '0'-'A'(30h, 41h): Message length Message STX (02h): Start of Message 'C'-'2'-'1'-'5' (43h, 32h, 31h, 35h): Enable/Disable Schedule writes command PG-EN: Enable/Disable Schedule data PG: Program No. '0'-'0'(30h, 30h): Program No.1 | '0'-'6'(30h, 36h): Program No.7 EN: Enable /Disable '0'-'0'(30h, 30h): Disable '0'-'1'(30h, 31h): Enable ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet 4) The monitor replies a data for confirmation. Header Message SOH-'0'-'0'-Monitor ID-'B'-'0'-'C' STX-'C'-'3'-'1'-'5'-ST-PG-EN-ETX Check code BCC Delimiter CR Header SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller. Monitor ID: Indicate a replying Monitor ID. Ex.) When this byte is set to 'A', the replying Monitor ID is '1'. 'B' (42h): Message type is "Command reply". '0'-'C' (30h, 43h): Message length Message STX (02h): Start of Message 'C'-'3'-'1'-'5' (43h, 33h, 31h, 35h): Enable/Disable Schedule writes reply command ST: Enable/Disable Schedule Status command '0'-'0'(30h, 30h): No error '0'-'1'(30h, 31h): Error PG-EN: Enable/Disable Schedule data PG: Program No. '0'-'0'(30h, 30h): Program No.1 | (27/40)