I had some difficulty connecting to the corner hepi pump controller after the power outage. The workstations have gotten too far ahead of the old Athena controller, so when I attempted to ssh to the pump station, I got:
Unable to negotiate with XX.XXX.X.XX port 22: no matching key exchange method found. Their offer: diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
I had to add some options to ssh:
ssh -oKexAlgorithms=+diffie-hellman-group1-sha1 -oHostKeyAlgorithms=+ssh-dss controls@h1hpipumpctrll0
After deleting the old host key again I was able to connect.
The end stations were easier with their beckhoff controllers. EX wouldn't start pumping at first, but I think the vfd just needed powered off more completely. I turned it off for 5 secs when I first arrived, that apparently wasn't enough to reset the vfd. Fil turned it off for maybe 20 secs, and fans came on when he powered it back up, which I didn't hear when I power cycled it earlier. EY came right back up.