Good day! Dry Contact relay interface isn’t coming on in Greenhouse # 2 but it’s coming on automatically on the microclimates.
After some troubleshooting, this turned out to be a corroded Cat5 connection.
Debugging consisted of disconnecting all cables, inspecting for corrosion, cleaning and re-inserting.
Remember that disconnecting the USB cable from the RIO requires a restart, as the USB serial connection doesn’t reset automatically. No other cables require a RIO reboot.
This is a good reminder to use that dielectric grease on all cable connections, especially if you’re in a humid environment.