NEC UN552S External Controls - Page 108
NEC UN552S Manual
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2) The monitor replies receipt result. Header SOH-'0'-'0'-Monitor ID- 'B'-'0'-'A' Message STX-'C'-'B'-'0'-'3'-'0'-'1'-ST-ETX Check code Delimiter BCC 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', replying monitor's ID is '1'. 'B' (42h): Message type is "Command reply". '0'-'A'(30h, 41h): Message length (10bytes) Message STX (02h): Start of Message 'C'-'B'-'0'-'3' (43h, 42h, 30h, 33h): Auto Tile Matrix Command '0'-'1' (30h, 31h): Execution 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 (108/145)