clintonp, I believe you and I discussed this via e-mail. But it doesn't look like anyone here has done that. As I indicated in my e-mail to you, the ECOM100s don't natively support SNTP protocol. Of course, you could use RBE (which I think we also discussed) and just send the time data (not in SNTP protocol) to the PC and, for that matter, between PLCs (i.e. peer-to-peer ECOM).