Velleman VMB1TS - Manual (Page 5)

VMB1TS manual – edition 2 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:
ƒ the desired temperature
ƒ the desired comfort temperature for heating
ƒ the desired day temperature for heating
ƒ the desired night temperature for heating
ƒ the anti-freeze safeguard temperature
ƒ the heating limit
ƒ the desired comfort temperature for cooling
ƒ the desired day temperature for cooling
ƒ the desired night temperature for cooling
ƒ the lower limit of the cooling preset range
ƒ the upper limit of the cooling preset range
ƒ the hysteresis
ƒ calibration of the sensor
ƒ the temperature difference for fast heating/cooling or for the differential thermostat
ƒ the temperature difference for fast heating or cooling
ƒ the alarm temperatures
ƒ the default duration of temporary mode (sleep time)
ƒ the zone number
ƒ the address of the linked sensor to set up a differential thermostat
• to determine:
ƒ heating
ƒ cooling