RS-232 Protocol function list for EP737
Interface
3 wires
Baud Rate : 19200
Data Bits: 8
Parity: None
Stop Bits: 1
Flow Control : None
Command Sequence
Write | Basic Protocol |
Header : | ‘*’ |
Address Code : | ‘0’ fixed |
Command Code : | ASCII Text |
Data : | Fixed 3 digits |
Terminator Code : | Carriage Return |
Delimiter : Space | Carriage Return |
Command Sequence
Read | Basic Protocol |
|
|
Header | ‘*’ |
Address Code | ‘0’ fixed |
Command Code | ASCII Text |
Data | ‘?’ fixed |
Terminator Code | Carriage Return |
Delimiter | Carriage Return |
|
|
Acknowledgement
| Basic Protocal |
Receive OK | ˝*000<CR>˝ |
Unknown Command | ˝*255<CR>˝ |
Invalid Command | ˝*001<CR>˝ |
In current source |
|
Data value out of range | ˝*002<CR>˝ |
Data response | As Write Command Format |
Function List
| Basic(Original) | Basic (Update) |
Power On | IR 001 | Didn’t support |
Power Off | IR 002 |
|
Source PC | IR 003 | Didn’t support |
KeyStone | IR 004 |
|
Zoom | IR 005 |
|
Mute | IR 006 |
|
Freeze | IR 007 |
|
Menu | IR 008 |
|
Up | IR 009 |
|
