NEC UN552S External Controls - Page 8

4.1 Header block format (fixed length) Header Message Check code Delimiter SOH Reserved Destination '0' 1st 2nd 3rd 1stbyte) SOH: Start of Header ASCII SOH (01h) Source 4th Message Type 5th Message Length 6th -7th 2ndbyte) Reserved: Reserved for future extensions. On this monitor, it must be ASCII '0'(30h). 3rdbyte) Destination: Destination equipment ID. (Receiver) Specify a commands receiver's address. The controller sets the "MONITOR ID" or "GROUP ID" of the monitor controlled in here. On the reply, the monitor sets '0' (30h), always. "MONITOR ID", "GROUP ID" to "Destination Address" conversion table is as follows, Monito r ID 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 ALL Destinatio n Address 41h('A') 42h('B') 43h('C') 44h('D') 45h('E') 46h('F') 47h('G') 48h('H') 49h('I') 4Ah('J') 4Bh('K') 4Ch('L') 4Dh('M') 4Eh('N') 4Fh('O') 50h('P') 51h('Q') 52h('R') 53h('S') 54h('T') 55h('U') 56h('V') 57h('W') 58h('X') 59h('Y') 2Ah('*') Monito r ID 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Destinatio n Address 5Ah('Z') 5Bh 5Ch 5Dh 5Eh 5Fh 60h 61h 62h 63h 64h 65h 66h 67h 68h 69h 6Ah 6Bh 6Ch 6Dh 6Eh 6Fh 70h 71h 72h Monito r ID 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 Destinatio n Address 73h 74h 75h 76h 77h 78h 79h 7Ah 7Bh 7Ch 7Dh 7Eh 7Fh 80h 81h 82h 83h 84h 85h 86h 87h 88h 89h 8Ah 8Bh Monito r ID 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Destinatio n Address 8Ch 8Dh 8Eh 8Fh 90h 91h 92h 93h 94h 95h 96h 97h 98h 99h 9Ah 9Bh 9Ch 9Dh 9Eh 9Fh A0h A1h A2h A3h A4h Group ID A B C Destination Address 31h('1') 32h('2') 33h('3') Group ID D E F Destination Address 34h('4') 35h('5') 36h('6') Group ID G H I Destination Address 37h('7') 38h('8') 39h('9') Group ID J Destination Address 3Ah(':') (8/145)