I'm having trouble getting information from the Keyence rep, but from what I have found out so far, the LJG has RS-232 and ethernet. But I am finding out that the ethernet is only for use with the setup software, not for communication to a PLC. That basically leaves RS-232, which will require us to convert serial to ethernet, since our serial port on that processor is already being used. This is why I wanted to see if anyone had experience with this setup and possibly some other suggestions or advice that we may not be thinking of.