Velleman VMB1LED - Manual (Page 5)

VMB1LED PWM LED strip dimmer Manual– edition 1_rev.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)
• bus error indication: 2 short flashes of the LEDs
• auto recovering after 25 seconds when a bus error occurs
The dimmer module can be given a designation with a maximum of 16 characters.
The dimmer module can transmit following messages :
• dimmer status
• local pushbutton status
• dimmer type LED (including software version)
• dimmer name
• local pushbutton name
• the communication error counter
• memory content
The dimmer module can transmit following instructions:
• to change the status of the LEDs on a pushbutton module
• to switch off the LEDs on a pushbutton module
• to switch on the LEDs on a pushbutton module
• to make the LEDs on a pushbutton module flash slowly
• to make the LEDs on a pushbutton module flash fast
• to make the LEDs on a pushbutton module flash very fast
The dimmer module can receive following messages:
• the status of a pushbutton module
• the status of a slider control
The dimmer module can receive following instructions :
• set the dimming value
• start timer
• request dimmer status
• inquire module type and software version
• read the communication error counter
• request dimmer name and local push button name
• request memory content
• overwrite memory content
• switch off pushbutton indication LED