NEC UN552S External Controls - Page 7

Communication Format

Get NEC UN552S PDF manuals and user guides View all NEC UN552S manuals
Add to My Manuals
Save this manual to your list of manuals

Page 7 highlights

4. Communication Format Header Message Check Code Delimiter The command packet consists of four parts, Header, Message, Check code and Delimiter. Note: Don't add extra data (Example: padding data) after Delimiter. Recommended sequence of a typical procedure to control a monitor is as follows, [A controller and a monitor, two-way communication composition figure] ■ For the general command (see the part "6.3. Operation Code (OP code) Table") Controller Monitor Get Parameter Get Parameter Reply Set Parameter Set Parameter Reply Get Parameter Get Parameter Reply Save Current Setting Command Save Current Setting Command Reply The controller sends command to get a value from the monitor that you want to change. The monitor replies a current value of the requested item. The controller sends commands to set an adjusted value. The monitor replies to the controller for confirmation. The controller sends command to get a value for confirmation. The monitor replies an adjusted value. The controller requests to store the adjusted value to the monitor. The monitor replies to the controller for confirmation. ■ For the special command (see the part 7 to 28. and 5.5.2) Controller Command Command Reply Monitor The control does not suitable for above fixed protocol; use the proper command for each control. Please refer section 5.5 and section 7 to 28. The monitor replies a proper message defined for each control. (7/145)

  • 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
  • 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
  • 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
  • 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
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
(7/145)
4. Communication Format
The command packet consists of four parts, Header, Message, Check code and Delimiter.
Note: Don't add extra data (Example: padding data) after Delimiter.
Recommended sequence of a typical procedure to control a monitor is as follows,
[A controller and a monitor, two-way communication composition figure]
■
For the general command (see the part "6.3. Operation Code (OP code) Table
”
)
■
For the special command (see the part 7 to 28. and 5.5.2)
Header
Message
Check Code
Delimiter
Monitor
Controller
Get Parameter
Get Parameter Reply
Set Parameter
Set Parameter Reply
Get Parameter Reply
Save Current Setting Command
Get Parameter
The controller sends command to
get a value from the monitor
that you want to change.
The monitor replies a current
value of the requested item.
The controller sends commands
to set an adjusted value.
The monitor replies to the
controller for confirmation.
The controller sends command to
get a value for confirmation.
The monitor replies an adjusted
value.
The controller requests to
store the adjusted value to the
monitor.
Command
Command Reply
The control does not suitable
for above fixed protocol; use
the proper command for each
control. Please refer section
5.5 and section 7 to 28.
The monitor replies a proper
message
defined
for
each
control.
Save Current Setting Command Reply
The monitor replies to the
controller for confirmation.
Monitor
Controller