NEC UN552S External Controls - Page 99

19. Auto ID 19.1 Auto ID Execute This command is used in order to execute Auto ID function. 1) The controller requests the monitor to execute Auto ID function. Header SOH-'0'-Monitor ID- '0'-'A'-'0'-'8' Message STX-'C'-'A'-'0'-'A'-'0'-'1'-ETX Check code Delimiter 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'-'8'(30h, 38h): Message length (8byte) Message STX (02h): Start of Message 'C'-'A'-'0'-'A' (43h, 41h, 30h, 41h, 30h, 31h): Auto ID Command '0'-'1' (30h, 30h): Execute ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.3 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet 2) The monitor replies receipt result. Header SOH-'0'-'0'-Monitor ID- 'B'-'0'-'A' Message STX-'C'-'B'-'0'-'A'-'0'-'1'-ST-ETX Check code BCC 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', replying monitor's ID is '1'. 'B' (42h): Message type is "Command reply". '0'-'A'(30h,41h): Message length (10byte) Delimiter CR Message STX (02h): Start of Message 'C'-'B'-'0'-'A' (43h, 42h, 30h, 41h, 30h, 31h): Auto ID Reply Command '0'-'1' (30h, 30h): Execute ST: Error Status No Error : 00h (30h, 30h) Error : 01h (30h, 31h) ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.3 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet (99/145)