Command names to keep things clear.
For example a heater Steering
| Heater_CMD_0 | Steer the heater off by hand |
| Heater_CMD_1 | Steer the heater on by hand |
| Heater_ST_0 | Steer the heater off by automatic |
| Heater_ST_1 | Steer the heater on by automatic |
| Heater_REL_0 | Release to steer the heater to off |
| Heater_REL_1 | Release to steer the heater to on |
| Heater_PROT_0 | Switch off the heater for protection |
| Heater_PROT_1 | Switch on the heater for protection |