Software » Campo

h1. TDT-Protocol on CAN

With the TDT-Protocol sensors can just send their values on the BUS.
An monitor-software should be able to display values without knowing about the sensors or their configuration.
The CANId of snesors is actually their configurable ID.
Sensor values are ususally not very important so they start at 0x200 (max ids 0x800);

|_. Size |_. Decription |_. Examples |
| 1 | Sub-Id; | Futher index; Sub-Sensor or more specifi kind of thing to be set |
| 1 | Data type | Int, Float, Time, Date |
| 1 | Unit | Hz, °C, Time, Date, PWM-Percent, PWM-Promil |
| 4 | Value | 32Bit |

h2. CAN IDs

|_. Range |_. Decription |_. Examples |
| 0x100-0x1FF | Control commands | Set global actuator |
| 0x200-0x2FF | Sensors/actors fixed | |
| 0x300-0x7FF | Sensors/actors dynamic | |

h2. Global actuator

Global means that all actuators of an type is addressed and not one concrete partipiant.

|_. ID |_. global actuator |_. Decription |
| 0x100 | System command | Perform system command; e.g. reboot, poweroff |
| 0x101 0x100 | Date/Time | Set date/time of all actuator |
| 0x102 0x101 | Illumination | Set brightness of lamps |