how to work with AXB-DMX512?

adys · May 2008

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 · May 2008

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 · May 2008

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

Jimweir192 · May 2008

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 · May 2008

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 · May 2008

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

adys · May 2008

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 · May 2008

what's sending DMX data then? another dimmer?

adys · May 2008

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.

how to work with AXB-DMX512?

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