Connect with CX-programer to a PLC by Devicenet

[wakeup 1]

I have two PLCs connected by a Device net. If I have my computer connected to the first one by serial port, is it possible to connect with the second one by the device net? Or is it always necessary to connect directly by the serial port? Thanks in advance

[Crossbow 295]

Which PLCs? And I am pretty certain that for programming the answer is no.