Another thing you can sometimes do with automation devices in general (though never tried with an ECOM so no guarantee this will work) is to power up the module, connect to it with a cable from a PC with as little else networked to it as possible, run Wireshark, watch for the device querying to see who's out there, and see what the IP is. Looking at Wireshark's version of the MAC address is helpful as the MAC ranges often are assigned to the automation vendor. Host, GE, etc., which can help identify traffic from the automation device.