1761-CBL-PM02 Series A cables don't have the handshaking wires connected, but Series B and C cables are electrically indentical.
The only differences between Series B and C is the label and the molding on the connector (made to fit flush and snug in a MicroLogix 1200).
I'm not sure why you might have some difference when configuring a Net-ENI module. Since you do have a 1761-NET-ENI Series D, you could also configure it using the COM Port Redirector utility and using Ethernet.