how to work with AXB-DMX512?

adys

Hi all



I have a new AXB-DMX512 connected to Ni3100

and I need to controll 3 set of leds

I have them declared as channel 1-3


I am trying to send command from my netlinx code like this:

send_command dvDMX , "'DR1L10%T10'"

nothing happens

the TX and RX leds are constantly on, I read that its ok, but they don't change when I send the commands...

Thanks for any help

Ady

Jimweir192

Sounds like you may have the DMX512 wired up incorrectly. How do you have it connected?

Are you using a daisy chain with an alternative 2nd DMX controller?

You should also try SEND_COMMAND dvDMX, 'MZ' as this will do a reset and clear the memory.

yuri

in all the systems i have seen, only the TX LED is constantly on...

Jimweir192

Correct, as DMX is a constant data-stream you should always have a Tx LED lit, having the Rx LED on suggests either a 2nd incomming DMX stream or a wiring fault.

adys

Thanks


I have only DMX output connected . When disconneted it, the RX is off, but the TX is constantly on.

removing the AXLINK wires and stay only with GND and + and still the TX is constantly on! even after reboot the box


( when connecting via ASLINK I see the box in netlinx onlin tree, so it connected ok....)


I don't understand what is going on here

Jimweir192

Swap the DMX Output Data1+ and Data1- wires over.

adys

Ok

Its working

To turn on the dimmer I had to set one more channel that act as a master (channel 4) and now every thing is working...


The 2 leds are constantly on BTW, but who cares


Thanks for the help


Ady

yuri

what's sending DMX data then? another dimmer?

adys

I am not sure I understand , but only the DMX ouput of the AXB is connected to the dimmers, the input is not connected to anything.