NEC X981UHD External Control Codes - Page 124

23.2 Get Proof of Play Current This command is used in order to get Current log data of Proof of Play. Note：Proof of Play information cannot be read from the display when it is in OFF state. The display must be fully powered on to read Proof of Play information. Also the display does not continue to create any new logs while it is in OFF state. 1) The controller requests the monitor to get Current log data of Proof of Play. Header SOH-'0'-Monitor ID'0'-'A'-'0'-'8' Message STX-'C'-'A'-'1'-'5'-'0'-'1'-ETX Check code Delimiter BCC CR Header SOH (01h) : Start of Header '0' (30h) : Reserved Monitor 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'-'8' (30h, 38h) : Message length is 8 bytes. Message STX (02h): Start of Message 'C'-'A'-'1'-'5': Proof of Play command '0'-'1' (30h,31h): Get Current log of Proof of Play command 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 the result of Current log data to the controller. Header SOH-'0'-Monitor ID- '0'-'B'-'3'-'4' Message STX-'C'-'B'-'1'-'5'-'0'-'1'-ST-CNHCNL-Data(0)-Data(1)-Data(2)--Data(18)-ETX Check code BCC Delimiter CR Header SOH (01h) : Start of Header '0' (30h) : Reserved Monitor 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". '3'-'4' (33h, 34h) : Message length is 52 bytes. Message STX (02h): Start of Message 'C'-'B'-'1'-'5': Proof of Play reply command '0'-'1' (30h,31h): Get Current log of Proof of Play command ST: Status No Error : 00h (30h, 30h) Error: 01h (30h, 31h) CNH: Current log data Number (High byte) (124/130)