1 | 2 | 3 | 4 | 5 |
6 | 7 | 8 |
| 9 |
CONTROL port | ||||
of the projector | - (1) |
| (1) | CD |
|
| |||
| RD (2) | (2) | RD | |
| TD (3) | (3) TD | ||
| - (4) |
| (4) | DTR |
| GND (5) |
| (5) GND | |
|
| |||
| - (6) |
| (6) | DSR |
| RTS (7) | (7) | RTS | |
| CTS (8) | (8) | DTS | |
| - (9) |
| (9) | RI |
1 2 3 4 5
6 7 8 9
of the PC
Connecting the cable
Turn off the projector and the PC.
Connect the CONTROL port of the projector with a
in the previous page.
3. Turn the PC on, and after the PC has started up turn the projector on.
Communications setting
19200bps, 8N1
1. Protocol
Consist of header (7 bytes) + command data (6 bytes).
2. Header
BE + EF + 03 + 06 + 00 + CRC_low + CRC_high
CRC_low : Lower byte of CRC flag for command data
CRC_high : Upper byte of CRC flag for command data
3.Command data
Command data chart
byte_0 | byte_1 | byte_2 | byte_3 |
| byte_4 | byte_5 |
| |||
Action |
|
| Type |
| Setting code |
| ||||
low | high |
| low | high |
| low |
| high |
| |
Action (byte_0 - 1) |
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
| ||||
Action | Classification |
|
| Content |
|
| ||||
1 | SET |
| Change setting to desired value. |
| ||||||
2 | GET |
| Read projector internal setup value. |
| ||||||
4 | INCREMENT |
| Increment setup value by 1. |
|
| |||||
5 | DECREMENT | Decrement setup value by 1. |
|
| ||||||
6 | EXECUTE |
| Run a command. |
|
| |||||
ViewSonic | 58 | PJL3211 |
