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The two machines travel together trough a path with an "electrical shaft". The traslation of the two machines is made by means of frequency converters and they must be syncronized in speed. The network connection is mainly for this purpose, speed setpoint from the master and position feedback from the slave. I have used wireless industrial ethernet in other applications but wired connection is prefered in this case.

There is only one network connection between the two PLCs. When the two machines are disconnected one continues working alone and the other remains stopped in the garage for maintenance.

The two machines have to be physically disconnected for maintenance purposes. One continuos working while the other is checked and repaired. Te master machine powers the slave machine and there are only this two machines in the network (each one with a separate PLC). My problem is the mechanical connection and disconnection, I have industrial connectors for the power but I don't know of rough enough network connectors for this hard environment. Thanks.

I have an application where two machines are power and network connected. It has to be possible to disconnect them several times a day (to make them indepent). The environment for this machines is a harsh one with a lot of dust (conductive dust) and steam. Does anyone know of a controlnet connectors suitable for this application?