2x NB7WTW00B 1x RS232 ?

[arrowsmith74 0]

I know this isn't right, but with that said:

Would it be posible to connect 2x  NB7 HMI's to the same RS232 cable from a CP1E-N  PLC in any way?

The PLC controls a boiler and heating system on the other side of my property and it would be convenient to be able 

to monitor the system in the house by using a RS232 extender instead of walk over to the other facility.

One of them would be used as normal and one of them might only be used for viewing info.

Are there anyone with experience in this? I can't be the first one needing 2x NB HMI's to one PLC 

 

Thanks in advance !

[Crossbow 295]

RS232 is point to point not multi-drop like RS485.  The protocol isn't designed for what you're asking for.

CP1E has a front board slot or two for option boards.  Some models have one board slot, some have two.  That should allow you to install two serial boards.