need some help with DVX to DGX communication

jimhock · April 2015

hoping someone can provide me some guidance.

I'm using a DVX 3155 as a master and a DGX 8 matrix for all my displays. i want to control the matrix with the control port but i don't get anything when i connect with a PC, and no response when connected to serial port 1 on the DVX. I can control it using IP. I would like to use serial for control due to IP issues on the university network.
Unless I'm wrong on how the matrix works; right now i have my transmitters and receivers setup to use TCP and they each have an IP on a private network. if i move my equipment to the university network i would have to move all the dxlinks to the same network. if i can use serial with the DGX then i don't need as many IP's, since i can leave the DGX and the dxlinks on the private network, just having the DVX and touch panel on the university network.

If I'm wrong, i welcome the education.

fogled@mizzou · April 2015

Your public vs. private network schema sounds OK. The only thing I can think of is to be sure to explicitly set all the serial parameters for the RS-232 port on the DVX.

Raphayo · April 2015

I got an issue like that recently. Create a small network with a router. Doing IP reservation with Mac address and create a port forwarding to the master solve my issue. That way, I can still do IP communication.

Cedric · April 2015

Also if not done, try to make your own RS232 cable, had some issue with the sell in ''public'' RS232 cable

jimhock · April 2015

yeah, i had the DGX set to 5001:1:1 in DEFINE_DEVICE, had it set for 9600,8,n,1,n in the DATA_EVENT. When i disconnect the network, it won't communicate. I've tried both premade and my own wires.

Cedric · April 2015

Any feedback from the notification window ?

jimhock · April 2015

no, nothing back from the DGX. it shows the DVX sending the commands.

Raphayo · April 2015

Are you able connecting a PC to the dgx and sending switching command if it's workin

Cedric · April 2015

Seems one of the communication RS232 port is down
so might be your controler, can test any other ?
or the DGX ?

Or can you test any other device control on the same port ?

Danny Campbell · April 2015

I've never used the serial port except through the DGX configuration software. But my understanding was that when you connected it put you in the DGX shell, and from that you have to enter BCS in order to enter the standard switching commands. From looking at the docs, you can send BCS followed by a space and a valid command.

Back in the dark ages, you also had to send a 'RXON' command after you sent the baud rate in the data_event. I would think that the DVX wouldn't need this but who knows. It won't hurt to try.

jimhock · April 2015

Thanks, I at least have a couple more things to try now.

pdabrowski · April 2015

Is that a fresh DGX?

The baud rate for the control RS232 port changed from 9600 to 115200 when the NX integrated DGX masters began shipping.

I have manuals from both versions and the baud rate changed between both.

To check the master version telnet into the DGX and if the firmware version on the splash screen is 4.x.x it is NI and 1.x.x is NX.

need some help with DVX to DGX communication

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