NEC UN552S External Controls - Page 115

22.2 Power Save Mode Write This command is used in order to write the setting of Power Save Mode. 1) The controller requests the monitor to write Power Save Mode. Header SOH-'0'-Monitor ID- '0'-'A'-'0'-'A' Message STX-'C'-'A'-'0'-'B'-'0'-'1'-MODE-ETX Check code BCC Delimiter 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 (10byte) Message STX (02h): Start of Message 'C'-'A'-'0'-'B' (43h, 41h, 30h, 42h): Power Save Mode command '0'-'1' (30h, 31h): Write MODE: POWER SAVE MODE 00h (30h, 30h): AUTO POWER SAVE 02h (30h, 32h): POWER SAVE OFF 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 a written in result. Header Message SOH-'0'-'0'-Monitor ID- STX-'C'-'B'-'0'-'B'-'0'-'1'-ST-ETX 'B'-'0'-'A' 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 (10byte) Message STX (02h): Start of Message 'C'-'B'-'0'-'B' (43h, 42h, 30h, 42h): Power Save Mode Reply '0'-'1' (30h, 31h): Write ST: Error Status No Error : 00h (30h, 30h) Error : 01h (30h, 31h) ETX (03h): End of Message (115/145)