NEC MultiSync V423 Manual

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NEC MultiSync V423 Manual Manual pdf 66 page image

(66/72)12. Serial No. & Model Name Read12.1 Serial No. ReadThis command is used in order to read a serial number.1) The controller requests the monitor to read a serial number.Header Message Check code DelimiterSOH-'0'-Monitor ID-'0'-'A'-'0'-'6' STX-'C'-'2'-'1'-'6'-ETX BCC CRHeaderSOH (01h): Start Of Header'0' (30h): ReservedMonitor ID: Specify the Monitor ID which you want to get serial number.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 lengthMessageSTX (02h): Start of Message'C'-'2'-'1'-'6' (43h, 32h, 31h, 36h): Serial No. commandETX (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 replies the serial No. data to the controller.Header Message Check code DelimiterSOH-'0'-'0'-Monitor ID-'B'-N-N STX-'C'-'3'-'1'-'6'-Data(0)-Data(1)---Data(n)-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', the replying Monitor ID is '1'.'B' (42h): Message type is "Command reply".N-N: Message lengthNote.) The maximum data length that can be returned from the monitor at a time is32bytes.Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (32h and 30h).MessageSTX (02h): Start of Message'C'-'3'-'1'-'6' (41h, 33h, 31h, 36h): Serial No. reply commandData(0)-Data(1)----Data(n):Serial Number These data are encoded to ASCII characters strings.ETX (03h): End of MessageCheck codeBCC: Block Check CodeRefer to the section 4.5 “Check code” for a BCC calculation.DelimiterCR (0Dh): End of packet