ISO-on-TCP

[f0rmiga]

How do I iso-on-tcp connection? Someone... please... can help me?

[Mark_Yedinak]

What do you mean by ISO? Are your refering to RFC 1006? You will need to be more clear about what you want to do.

If this is a protocol, you will need to get a specification for it and write an implementation of it in LabVIEW. Or you may be able to find someone who has done this already. As to how difficult or easy that would be would depend on the protocol itself.

[f0rmiga]

I'm trying to communicate one plc s7-300 with labview, but the labview will be simulate a situation, therefore needs be ISO-on-TCP (RFC1006), that's a protocol of communication of the s7-300.

[Mark_Yedinak]

You may want to look at this link. I haven't worked with this in the past but I imagine that someone might have developed the code to support this. Worst case you have to dig through the defitions of the packets required to support your device and build them by hand.

[f0rmiga]

thanks...

[Naqqash]

I have once connected the LabVIEW with the S7-300 PLC and step 7 by using OPC servers. May be these links will be helpful.

https://forums.ni.com/t5/Industrial-Communications/Interfacing-S7-300-PLC-with-OPC-variable-not-havi...

http://zone.ni.com/wv/app/doc/p/id/wv-263 

[nasenmann]

Maybe this helps?

https://forums.ni.com/t5/Example-Code/S7-PLC-TCP-IP-Protocol-Reference-Example/ta-p/3492191

/n

[Gevorg]

Hi Naqqash,

Did you manage to have normal communication between OPC server and S7-300?

Are you sure that S7-300 supports OPC?

Now I am going to communicate with a S7-300 PLC with NI OPC Server. But I am not sure it supports OPC, and the OPC has appropriate drivers for S7-300.

Thanks and regards,

Gevorg