Sanyo CE42LM4N-NA RS232C Basic - Page 5

Notes for Communication

Page 5 highlights

3. Notes for Communication 3.1 The TV command is defined one command/one line that starts with "C" and ends with carriage return (0x0D). 3.2 There are two types of commands, Functional Execution Commands and Status Read Commands. [Example] Functional Execution Command: "C05" [CR] Status Read Command: "CR0" [CR] 3.3 When it takes more than one second to receive one command, the function is not executed. When it takes more than one second until the TV receives carriage return since it has received the first data "C", it clears the information of buffer. 3.4 For the command pipelining, wait interval of 100 ms after the response. More than 100ms Command PC → TV "C""0""7" CR Next Command TV → PC ACK CR Carriage Return (a few ms ~ 5s) 3.4.1 When a command is issued before receiving response, the function is not executed properly. 3.4.2 Except when there is no response for 5 seconds. 3.5 It takes about 5 seconds for internal initialization after plugging in AC power. During this time, it cannot process commands. Do not issue any command. 3.6 The number of characters of response for Status Read Commands depends on commands. Please see [7. Status Read Command]. 3.7 Characters for commands must be Capital (A - Z). Ver. Page 4

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19

Ver.
Page
4
3. Notes for Communication
3.1
The TV command is defined one command/one line that starts with “C” and ends with carriage
return (0x0D).
3.2
There are two types of commands, Functional Execution Commands and Status Read
Commands.
[Example]
Functional Execution Command: “C05” [CR]
Status Read Command: “CR0” [CR]
3.3
When it takes more than one second to receive one command, the function is not executed.
When it takes more than one second until the TV receives carriage return since it has received
the first data “C”, it clears the information of buffer.
3.4
For the command pipelining, wait interval of 100 ms after the response.
More than 100ms
Command
PC
TV
C
0
7
CR
Next Command
TV
PC
ACK
CR
Carriage Return
a few ms
5s
3.4.1 When a command is issued before receiving response, the function is not executed
properly.
3.4.2
Except when there is no response for 5 seconds.
3.5
It takes about 5 seconds
for internal initialization after plugging in AC power. During this time,
it cannot process commands. Do not issue any command.
3.6
The number of characters of response for Status Read Commands depends on commands.
Please see [7. Status Read Command].
3.7
Characters for commands must be Capital (A - Z).