Saulo35
Member
Hi,
Here is my dilemma - I hope somebody has done this before. This involves equipment in three different locations (and countries).
On site:
At Office #1:
At Office #2:
Challenges:
Any suggestions will be appreciated.
Thank you
Here is my dilemma - I hope somebody has done this before. This involves equipment in three different locations (and countries).
On site:
- Two Siemens S7-1200 PLCs, connected via Ethernet to an unmananged RedLion N-Tron 108TX switch. Their IP addresses are 192.68.0.11 and 31, Subnet 255.255.255.0.
- The N-Tron unmanaged switch
- A Desktop PC running Windows 10, TeamViewer and Opto PAC software. The PC is connected to the above switch as well. The IP address is 192.168.0.90.
- Internet_Key Alcatel Modem USB HSDPA X020 connected to one of the PC's USB ports, provides 3G Internet access to the PC. The IP address varies daily.
At Office #1:
- A desktop PC running Windows 10, Putty and TeamViewer, routinely used to connect to the Site PC to commission the Opto22 system via TeamViewer.
- We installed a trial version of TIA Portal 13. We do not have the offline PLC file.
At Office #2:
- A laptop or desktop running Siemens TIA Portal 13. They need to remotely connect to Site to commission the two Siemens S7-1200 PLCs. They apparently do this routinely with other sites using VPN. TIA Portal 13 uses port 102.
- We don't have control over this office (and they are not very cooperative, so we have to make it work on Office #1 first in order to convince Office #2 to do the same.
Challenges:
- We established an SSH tunnel between the Site PC and the Office #1 PC. This makes the Office #1 PC believe the local port at IP address 127.0.0.1 is actually the remote port at the remote IP address. We are unsure what the remote IP address should be: that of the PLC? That of the Site PC? We tried both, of course. One problem is, TIA Portal 13 will not allow 127.0.0.1 as a PLC IP address. The "accessible devices" feature does not return anything.
- We are hesitant about installing a VPN like OpenVPN at the Site PC because we fear that, during the installation process, we may lose TeamViewer access to the PC (for good) and we don't have anybody on site.
Any suggestions will be appreciated.
Thank you