Any Ethernet/IP examples or tutorials?

[ddufour]

Hi!

So, for the first time, i have to work with the ethernet/ip protocol.

I would like to know if there is any examples or tutorials about the protocol and how to program the communication read/write.

I've check on the internet and read the documentation and i know a bit how to do it with the address and everything but nothing more.

One thing i don't know what it is, is the "number of elements" input. Is it only the number of element in my array for example? So, if my array contain 4 values and i put 3 elements in the inputs of the "Tag Read", i will only read the first 3 values?

Another thing is that i dont have access to a PLC for now. Is there a way to simulate one? So i can know my path is good, know if i send/receive the data i want and test more things before having the PLC with me?

Thank you!

    - Dave

[billko]

Look under Help --> Find Examples and then search for TCP/IP.  There are a few (hopefully) helpful examples.

[altenbach]

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@ddufour wrote:

So, for the first time, i have to work with the ethernet/ip protocol.

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LabVIEW gives you UDP and TCP, no access to lower levels of the protocol (ethernet, or IP).

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@ddufour wrote:

One thing i don't know what it is, is the "number of elements" input. Is it only the number of element in my array for example? So, if my array contain 4 values and i put 3 elements in the inputs of the "Tag Read", i will only read the first 3 values?

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It is not clear what functions you are looking at. Typical TCP and UDP functions don't have any inputs resembling your description. All data needs to be flattened to a string for transport. Are you using a toolkit? Can you show us some code? Is this classic LabVIEW or NXG?

[crossrulz]

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@billko wrote:

Look under Help --> Find Examples and then search for TCP/IP.  There are a few (hopefully) helpful examples.

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Bill, the OP is talking about EtherNet/IP, which is an industrial protocol.  NI sells a driver for it.

It has been too long since I messed around with that driver and I no longer have access to it.  I could potentially dig around to see if I have a copy of an old project, but I am just going to back away from this and hope somebody with better knowledge comes in.

[billko]

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@crossrulz wrote:

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@billko wrote:

Look under Help --> Find Examples and then search for TCP/IP.  There are a few (hopefully) helpful examples.

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Bill, the OP is talking about EtherNet/IP, which is an industrial protocol.  NI sells a driver for it.

It has been too long since I messed around with that driver and I no longer have access to it.  I could potentially dig around to see if I have a copy of an old project, but I am just going to back away from this and hope somebody with better knowledge comes in.

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I can't believe I misread that.  To the OP - sorry about that!

[ddufour]

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@crossrulz wrote:

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@billko wrote:

Look under Help --> Find Examples and then search for TCP/IP.  There are a few (hopefully) helpful examples.

---

Bill, the OP is talking about EtherNet/IP, which is an industrial protocol.  NI sells a driver for it.

It has been too long since I messed around with that driver and I no longer have access to it.  I could potentially dig around to see if I have a copy of an old project, but I am just going to back away from this and hope somebody with better knowledge comes in.

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Hi!

I have played a bit with Labview and the driver to see if i can do something and i think i have something! But it could be nice to see an example of a working project so i could double check what i did, if yours arent too far, it would be appreciated!

@billko No problems! Can happen haha

[altenbach]

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@ddufour wrote:

So, for the first time, i have to work with the ethernet/ip protocol.

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Obviously, you could have avoided a lot of confusion by using the correct lettercase (EtherNet/IP vs. ethernet/ip) and even put it in quotes or include a link.

... especially since they had the horrible idea to reuse well defined generic terms for a very specific protocol. What were they thinking? 😮

[llaala]

Have you been able to provide find any?