Control Codes
Viewing control state (Get control command)
Header | Command | ID | Data length | Checksum |
|
|
|
|
|
0xAA | Command type |
| 0 |
|
Controlling (Set control command)
Header | Command | ID | Data length | Data | Checksum |
|
|
|
|
|
|
0xAA | Command type |
| 1 | Value |
|
Command
No. | Command type | Command | Value range |
|
|
|
|
1 | Power control | 0x11 | 0~1 |
|
|
|
|
2 | Volume control | 0x12 | 0~100 |
|
|
|
|
3 | Input source control | 0x14 | - |
|
|
|
|
4 | Screen mode control | 0x18 | - |
|
|
|
|
5 | Screen size control | 0x19 | 0~255 |
|
|
|
|
6 | PIP on/off control | 0x3C | 0~1 |
|
|
|
|
7 | Auto adjustment control (PC and | 0x3D | 0 |
| BNC only) |
|
|
|
|
|
|
8 | Video wall mode control | 0x5C | 0~1 |
|
|
|
|
9 | Safety Lock | 0x5D | 0~1 |
No. | Command type | Command | Value range |
|
|
|
|
10 | Video Wall On | 0x84 | 0~1 |
|
|
|
|
11 | Video Wall User Control | 0x89 | - |
•• All communications take place in hexadecimals. The checksum is calculated by adding up all values except the header. If a checksum adds up to be more than 2 digits as shown below (11+FF+01+01=112), the first digit is removed.
E.g. Power On & ID=0
Header | Command | ID | Data length | Data 1 | Checksum |
|
|
|
|
|
|
0xAA | 0x11 |
| 1 | "Power" |
|
|
|
|
|
|
|
|
|
|
|
|
|
Header | Command | ID | Data length | Data 1 | 12 |
|
|
|
|
|
|
0xAA | 0x11 |
| 1 | 1 |
|
•• To control all devices connected by a serial cable simultaneously irrespective of IDs, set the ID as "0xFE" and transmit commands. Commands will be executed by each device but ACK will not respond.
29