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Interfacing with a Horner unit hasn't changed much until recently. The typical ports used are MJ1 and MJ2. Both are serial RJ45 ports that talk RS-232 and RS-485. Recent firmware upgrades have allowed programming via both ports but today, there are additional standard interface ports that can be used. Let's take the RX371 for example. It contains MJ1, MJ2, mini USB, Ethernet, CAN, and mini SD.



Plug your PC into the mini USB and it instantly claims a COM port. Then run the connection wizard from Cscape to change the connectivity method. This same method works for Ethernet. Run the wizard and choose Ethernet and the respective IP address. An IP must be established before hand using MJ1, MJ2, or mini USB.



The last object for programming a unit is the mini SD card slot. The system screen has an option at the bottom of the list called 'clone'. This will download/upload the entire Horner unit to the SD card. Then that card can be taken unit to unit for rapid program propagation.


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