I am getting a "Uni-I/O Communication Error" when I power up this USP-104-B10 as shown in the picture. I have it connected to our network via ethernet and I can ping its IP as well as go online with it. So I find this message curious.
In addition, when I try to email from this PLC, I get a -1 error code which is described in the help (I RTFM every once in awhile) as a "General COM Error. Please check the physical connections". I have had this email working in the past and I am using the same settings. FYI - don't use a free gmail account.
Any ideas?
Thanks,
Norm