NEC UN552S External Controls - Page 117

22.3 Auto Power Save Time Read This command is used in order to read the setting of Auto Power Save Time. 1) The controller requests the monitor to reply Time setting. Header SOH-'0'-Monitor ID- '0'-'A'-'0'-'8' Message STX-'C'-'A'-'0'-'B'-'0'-'2'-ETX Check code BCC 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) Delimiter CR Message STX (02h): Start of Message 'C'-'A'-'0'-'B' (43h, 41h, 30h, 42h): Power Save Mode command '0'-'2' (30h, 30h): Auto Power Save Read 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 Time to the controller. Header SOH-'0'-'0'-Monitor ID- 'B'-'0'-'A' Message STX-'C'-'B'-'0'-'B'-'0'-'2'-TIME-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'-'B' (43h, 42h, 30h, 42h): Power Save Mode Reply '0'-'2' (30h, 32h): Auto Power Save Time Read TIME: AUTO POWER SAVE TIME (sec.) 00h (30h, 30h) - 78h (37h, 38h): 1 (5dec.) - 120 (600sec.) 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 (117/145)