NEC MultiSync C431 User Manual

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NEC MultiSync C431 User Manual Manual pdf 75 page image

(75/104)17. Daylight Saving read & write17.1 Daylight Saving ReadThis command is used in order to read the setting of Daylight Saving.1) The controller requests the monitor to reply a Daylight Saving setting.Header Message Check code DelimiterSOH-'0'-Monitor ID-'0'-'A'-'0'-'8'STX-'C'-'A'-'0'-'1'-'0'-'0'-ETX BCC CRHeaderSOH (01h): Start of Header'0' (30h): ReservedMonitor 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 (8bytes)MessageSTX (02h): Start of Message'C'-'A'-'0'-'1' (43h, 41h, 30h, 31h): Daylight Saving Command'0'-'0' (30h. 30h): ReadETX (03h): End of MessageCheck codeBCC: Block Check CodeRefer to the section 4.3 “Check code” for a BCC calculation.DelimiterCR (0Dh): End of packet2) The monitor replies Date & Time to the controller.Header Message CheckcodeDelimiterSOH-'0'-'0'-Monitor ID-'B'-'2'-'0'STX-'C'-'B'-'0'-'1'-'0'-'0'-ST-BM-BD1-BD-BT1-BT2-EM-ED1-ED2-ET1-ET2-TD-ETXBCC CRHeaderSOH (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".'2'-'0'(32h, 30h): Message length (32bytes)MessageSTX (02h): Start of Message'C'-'B'-'0'-'1' (43h, 42h, 30h, 31h): Daylight Saving Setting reply command'0'-'0' (30h, 30h): ReadST: Error StatusNo Error : 00h (30h, 30h)Error : 01h (30h, 31h)BM: BEGIN MONTHJANUARY – DECEMBER: 01h (30h, 31h) - 12h (31h, 32h)BD1: BEGIN DAY1FIRST : 01h (30h, 31h)SECOND : 02h (30h, 32h)THIRD : 03h (30h, 33h)FOUR : 04h (30h, 34h)