Can Filter

[Lone_Gunman]

Hello,

I want to program a can bus - filter : see also attachement to see what i mean.

I have 3 nodes on the can bus, and i want to isolate one node by placing a "can- filter" between.

The filter must have the following spec's:

1: filter the incomming id's/messages ( 5 chosen id's) 

2: block or let through the outgoing id's/messages

3: delay time as narrow as possible

Is it possible with these tools? (see below) => is it in general possible to make sutch filter, because i have to open 2 can ports at the same time that can transmit and receive the same messages?

=> NI-can hardware;

  - 1x PCMCIA-can/2 Series 2

  - 1x usb-8473s

  - 1x usb-8473

=> NI software

  - LV 8.0

  - NI-can 2.5

Thanks in advance

Message Edited by Lone Gunman on 07-31-2008 03:35 AM

Message Edited by Lone Gunman on 07-31-2008 03:37 AM

[DirkW]

Sure the SJA 1000 which is the controller in all your mentioned hardware has a powerful filter integrated. The NI-CAN driver brings an example for programming it programaticaly.

Besides that there are multiple threads in this forum regarding filtering with lots of examples for download.

DirkW