NEC UN552S External Controls - Page 92
Monitor ID: Specify the Monitor ID which you want to get Model Name.
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16.2 Direct TV Chanel Write & Reply 1) The controller requests the monitor to write channel information. Header Message Check code Delimiter SOH-'0'-Monitor ID- STX-'C'-'2'-'2'-'D'- BCC CR '0'-'A'-'1'-'2' MajorCH-MinorCH-ETX Header SOH (01h): Start of Header '0' (30h): Reserved Monitor ID: Specify the Monitor ID which you want to get Model Name. Ex.) If Monitor ID is '1', specify 'A'. '0' (30h): Message sender is the controller. 'A' (41h): Message type is "Command". '1'-'2'(31h, 32h): Message length = 18bytes Message STX (02h): Start of Message 'C'-'2'-'2'-'D' (43h, 32h, 32h, 44h): Direct TV Channel write command MajorCH: Major Channel (00000000h - FFFFFFFFh), '0'-'0'-'0'-'0'-'0'-'0'-'0'-'0' - 'F'-'F'-'F'-'F'-'F'-'F'-'F'-'F' MinorCH: Minor Channel (0000h - FFFFh), '0'-'0'-'0'-'0' - 'F'-'F'-'F'-'F' 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 to the controller. Header SOH-'0'-'0'-Monitor ID- 'B'-'1'-'2' Message STX-'C'-'3'-'2'-'D'- MajorCH-MinorCH-ETX Check code Delimiter BCC CR 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', the replying Monitor ID is '1'. 'B' (42h): Message type is "Command reply". '1'-'2'(31h, 32h): Message length = 18bytes Message STX (02h): Start of Message 'C'-'3'-'2'-'D' (43h, 33h, 32h, 43h): Direct TV Channel write reply command MajorCH: Major Channel (00000000h - FFFFFFFFh), '0'-'0'-'0'-'0'-'0'-'0'-'0'-'0' - 'F'-'F'-'F'-'F'-'F'-'F'-'F'-'F' MinorCH: Minor Channel (0000h - FFFFh), '0'-'0'-'0'-'0' - 'F'-'F'-'F'-'F' 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 (92/145)