Velleman VMB1TSW - Manual (Page 5)

VELBUS CHARACTERISTICS
 2-wire communication for Velbus data and 2 wires for power supply
 data transmission: 16.6 Kbit/s
 Serial data protocol: CAN (Controller Area Network)
 Short circuit proof (towards negative or positive pole of the power supply)
 LED indication when receiving or transmitting data over the Velbus
 bus error indication: 2 short flashes of the LEDs
 auto recovering after 25 seconds when a bus error occurs
The sensor module can be given a designation with a maximum of 16 characters.
The temperature sensor module can transmit following messages :
 output status
 manual pushbutton status
 sensor status
 sensor temperature, minimum and maximum temperature
 time statistics (heating/air-conditioning on time)
 sensor settings
 sensor configuration
 module type (including zone number and software version)
 sensor name
 memory content
 the communication error counter
The temperature sensor module can transmit following instructions:
 change the status of the LED(s) on the pushbutton module
 switching off the LED(s) on a pushbutton module
 switching on the LED(s) on a pushbutton module
 make LED(s) on a pushbutton module flash slowly
 make LED(s) on a pushbutton module flash fast
 the desired temperature for the linked sensor to create a differential thermostat
The temperature sensor module can receive following messages:
 the status of a pushbutton module
The temperature sensor module can receive following instructions :
 to set:
 the desired temperature
 the desired comfort temperature for heating
 the desired day temperature for heating
 the desired night temperature for heating
 the anti-freeze safeguard temperature
 the heating limit
 the desired comfort temperature for cooling
 the desired day temperature for cooling
 the desired night temperature for cooling
 the lower limit of the cooling preset range
 the upper limit of the cooling preset range
 the hysteresis
 calibration of the sensor
 the temperature difference for fast heating/cooling or for the differential thermostat
 the temperature difference for fast heating or cooling
 the alarm temperatures
 the default duration of temporary mode (sleep time)
 the zone number
 the address of the linked sensor to set up a differential thermostat
 to determine:
 heating
 cooling
 local control panel:
 lock
 unlock