OkiePC
Lifetime Supporting Member
Engineers:
So, we are supposed to do some mods to the controls at a pumps station with a SLC 5/03 and it needs to communicate with another new pump station some miles away with a ML1400 (done by others). We know that the 5/03 can't do Ethernet and we understand how to overcome that.
Our tech asked about a radio link and was told don't worry about it, there's hills in the way and we're going to connect them with fiber. Great no problem. Until we find out they are adding fiber Internet to both sites.
How can I establish MSG connection across the internet between two PLCs securely?
We use Stridelinx VPN routers for secure connections for customer HMI access and from our programming PCs to their controls LANs all the time, but I have never been asked to link two control systems together with messages having the world wide web in the middle ... until now.
So, we are supposed to do some mods to the controls at a pumps station with a SLC 5/03 and it needs to communicate with another new pump station some miles away with a ML1400 (done by others). We know that the 5/03 can't do Ethernet and we understand how to overcome that.
Our tech asked about a radio link and was told don't worry about it, there's hills in the way and we're going to connect them with fiber. Great no problem. Until we find out they are adding fiber Internet to both sites.
How can I establish MSG connection across the internet between two PLCs securely?
We use Stridelinx VPN routers for secure connections for customer HMI access and from our programming PCs to their controls LANs all the time, but I have never been asked to link two control systems together with messages having the world wide web in the middle ... until now.
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