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NI-3100 port number 21?

yan_benyaminyan_benyamin Posts: 42
in AMX Hardware
I saw a code that was sent to me and saw this: 
somedevice = 5001:21:1
another = 5001:22:1

I know that this system uses an NI-3100. How does an NI-3100 has a port numbered 21?

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    dunnpdunnp Posts: 12
    Port 21

    NX series use port 21 for relays & port 22 for I/O.
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    ericmedleyericmedley Posts: 4,177
    dunnp wrote: »
    NX series use port 21 for relays & port 22 for I/O.

    That's one of the nice new features. All NX masters use the same port numbers for various devices. You don't have to retool your code if you change from one master to another. I still have to double check on stuff like the NI700/900/2100. Don't have them committed to memory.
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    mshuntmshunt Posts: 23
    Very nice. I had two nearly identical systems this week. One had relays on port 4, one on port 8.
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