Velleman VMB1TCW User Manual
Page 6
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 temperature controller module can be given a designation with a maximum of 16 characters.
The temperature controller module can transmit following messages:
the current time
the output status of the alarm clock
the controller status
the controller type (including software version)
the controller name
the communication error counter
a program instruction
the memory content
The temperature controller module can transmit following instructions:
Request the:
o
module type (to search for sensors)
o
current
time
o
memory
content
o
sensor
name
o
sensor
set-up
o
sensor
status
o
sensor
temperature
o
sensor time statistics
o
program
instruction
Set the:
o
program
storage
location
o
program
availability
o
program
instruction
o
sensor
zone
o
desired temperature for a sensor
o
sensor comfort temperature for heating
o
sensor day temperature for heating
o
sensor night temperature for heating
o
sensor anti-freeze temperature for heating
o
upper heat temperature
o
temperature difference for fast heating/cooling or differential thermostat
o
hysteresis temperature for a sensor
o
sensor comfort temperature for cooling
o
sensor day temperature for cooling
o
sensor night temperature for cooling
o
lower limit of the cooling preset range
o
upper limit of the cooling preset range
o
sensor calibration factor
o
low temperature alarm of a sensor
o
high temperature alarm of a sensor
put the sensor in:
o
heating
mode
o
cooling
mode
o
comfort
mode
o
in day mode
o
night
mode
o
anti-freeze
mode
synchronize the alarm clock time
lock the local sensor controls
unlock the local sensor controls
standard duration for temporary mode (sleep time) for a sensor