Hello

I've been trying to communicate through integraxor scada with a s7-300 using Profinet, but for some reason I don't succeed.

I get a warning saying that the port is not opened.

I will like to know how to get access to the s7 through my scada.

Do I need to add a station in NetPro?

This is my first project.

Hope you can help me. Thanks.

Regards, Maria.

Hi

I've already did that, but I'm still having the same problem.

This is what is going on:

The S7 has one specific IP address: 192.xx.x.xx

Our corporative network has a different IP domain: 172.xx.xx.xx

Through our local network I can access to the s7 ip.  (eg: ping 192.xx.xx.xx and it replies)

Do I need to setup something in NetPro? Is there a specific configuration for this?

Thanks

I don't think NetPro is required. I have used other SCADA systems where no other configuration in the PLC is required, however it might also depend on the driver of your SCADA system all you need to do is reference it to the station and the tag. It might look something like this;

Tag Name; Fire Alarm/ Station; 172.168.1.20:0:1/ I/O M22.4.

In most cases it will read the I/O with the specific address depending if your SCADA is set up correctly.

The fact that you are on two different networks might also contribute to the porblem, do you have an IT that can look at your network security?

Hello again

I was reading this documentation: What should you watch out for with a remote access to a SIMATIC S7 with STEP 7 via the Internet?

But I have two questions:

First, Is it possible to access to CP 3431-Lean through an external network from my pc (Windows Server)?

PD: The 102 port in both sides is open.

And, When I'm setting up the IO driver configuration in my scada, Do I need to set the CP3431-LEAN or the CPU? (CPU Slot and the station name parameters)

Hope you can help me, thank you.

Regards, Maria.

Hi Maria, I will give you the quick answer; first of all it should be possible to access your PLC through the internet. Having Port 102 open is a good start, however did you configure port forwarding in your router?

Once you have forwarded the Port you need to find out what the "internet" IP address of your PLC is. In your local network example 192.168.1.50 is what your IP might look like, however if you try to access your network through the internet and a router you will find that another IP is assigned. When you are on a computer that is on the same IP as your PLC use google and type in "what is my IP?" This is the IP address that you will need to assign in your SCADA application. In the local network of your PLC you need to go into your router and forward the port of this PLC to your router to make it accessible through the internet. When you access your router you need to forward the local IP address to your router.

When you configure the SCADA you should only need the IP of the PLC , the same IP you need to download the program to the PLC, the CP will do its job without any extra configuration. Just remember that the IP to access the PLC locally is not the same as when going through the internet and you will need to do port forwarding in your router.

Rgds

Another even simpler way to access a remote network is by using Teamviewer VPN, have a look at the attached PDF. This way you are connected to the other network via Teamviewer and it is just as good as being on the same network. You can also find another post on the Teamviewer setup here.