NEC MultiSync V422 Control Manual

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NEC MultiSync V422 Control Manual Manual pdf 35 page image

(35/71)7. Power control procedure7.1 Power status read1) The controller requests the monitor to reply a current power status.Header Message Check code DelimiterSOH-'0'-Monitor ID-'0'-'A'-'0'-'6' STX-'0'-'1'-'D'-'6'-ETX BCC CRHeaderSOH (01h): Start Of Header'0' (30h): ReservedMonitor ID: Specify the Monitor ID from which you want to get status.Ex.) If Monitor ID is '1', specify 'A'.'0' (30h): Message sender is the controller.'A' (41h): Message Type is "Command".'0'-'6' (30h, 36h): Message length is 6 bytes.MessageSTX (02h): Start of Message'0'-'1'-'D'-'6': Get power status command.ETX (03h): End of MessageCheck codeBCC: Block Check CodeRefer to the section 4.5 “Check code” for a BCC calculation.DelimiterCR (0Dh): End of packet2) The monitor returns with the current power status.HeaderSOH (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', the replying Monitor ID is '1'.'B' (42h): Message Type is "Command reply".'1'-'2' (31h, 32h): Message length is 18 bytes.MessageSTX(02h):Start of Message'0'-'2' (30h, 32h): Reserved data'0'-'0' (30h, 30h): Result code00: No Error.01: Unsupported.'D'-'6'(44h, 36h): Display power mode code'0'-'0' (30h, 30h): Parameter type code is "Set parameter".'0'-'0'-'0'-'4' (30h, 30h, 30h, 34h): Power mode is 4 types.'0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): Current power mode0001: ON0002: Stand-by (power save)0003: Suspend (power save)0004: OFF (same as IR power off)ETX (03h): End of MessageCheck codeBCC: Block Check CodeRefer to the section 4.5 “Check code” for a BCC calculation.DelimiterHeader Message Check code DelimiterSOH-'0'-'0'-Monitor ID-'B'-'1'-'2' STX-'0'-'2'-'0'-'0'-'D'-'6'-'0'-'0'-'0'-'0'-'0'-'4'-'0'-'0'-'0'-'1'-ETXBCC CR